Question about 1995 Honda XR 250 R

1 Answer

Gear shifter has too much play

I pulled out the bolt by the chain sprocket(which is a 30t bolt), and was wondering if there was a spring on the end of that bolt.

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No spring on a bolt that I can see.

gear shifter has too much play - f98b18e.gif
The shift mechanism has three springs

d1f25c2.gif

Posted on Jun 30, 2009

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Posted on Jan 02, 2017

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Timing jeep cherockee


double posted but this time the CAM pops up.
why not read the FSM first. ? linked below.
or alldata.com . log in and read.

here ill do a paste from JUST install PART chapter.
you are doing ALL THAT book free, REALLY?
https://www.techauthority.com/en-US/Pages/Home.aspx

  1. Using a vise, lightly compress the secondary chain tensioner piston until the piston step is flush with the tensioner body. Using a pin or suitable tool, release ratchet pawl by pulling pawl back against spring force through access hole on side of tensioner.
  2. While continuing to hold pawl back, Push ratchet device to approximately 2 mm from the tensioner body. Install Special Tool 8514 lock pin into hole on front of tensioner. Slowly open vise to transfer piston spring force to lock pin.
  3. Position primary chain tensioner over oil pump and insert bolts into lower two holes on tensioner bracket. Tighten bolts to 250 inch lbs. (28 Nm).
  4. Install right side chain tensioner arm. Install Torx®bolt. Tighten Torx®bolt to 250 inch lbs. (28 Nm). CAUTION The silver bolts retain the guides to the cylinder heads and the black bolts retain the guides to the engine block.
  5. Install the left side chain guide. Tighten the bolts to 250 inch lbs. (28 Nm).
  6. Install left side chain tensioner arm, and Torx®bolt. Tighten Torx®bolt to 250 inch lbs. (28 Nm).
  7. Install the right side chain guide. Tighten the bolts to 250 inch lbs. (28 Nm).
  8. Install both secondary chains onto the idler sprocket. Align two plated links on the secondary chains to be visible through the two lower openings on the idler sprocket (4 o'clock and 8 o'clock). Once the secondary timing chains are installed, position special tool 8429 to hold chains in place for installation.
  9. Align primary chain double plated links with the timing mark at 12 o'clock on the idler sprocket.
  10. Align the primary chain single plated link with the timing mark at 6 o'clock on the crankshaft sprocket.
  11. Lubricate idler shaft and bushings with clean engine oil. NOTE The idler sprocket must be timed to the counterbalance shaft drive gear before the idler sprocket is fully seated.
  12. Install all chains, crankshaft sprocket, and idler sprocket as an assembly . After guiding both secondary chains through the block and cylinder head openings, affix chains with a elastic strap or equivalent. This will maintain tension on chains to aid in installation. Align the timing mark on the idler sprocket gear to the timing mark on the counterbalance shaft drive gear, then seat idler sprocket fully . Before installing idler sprocket bolt, lubricate washer with oil, and tighten idler sprocket assembly retaining bolt to 25 ft. lbs. (34 Nm). NOTE It will be necessary to slightly rotate camshafts for sprocket installation.
  13. Align left camshaft sprocket "L" dot to plated link on chain.
  14. Align right camshaft sprocket "R" dot to plated link on chain. CAUTION Remove excess oil from the camshaft sprocket bolt. Failure to do so can result in over torque of bolt resulting in bolt failure.
  15. Remove Special Tool 8429, then attach both sprockets to camshafts. Remove excess oil from bolts, then Install sprocket bolts, but do not tighten at this time.
  16. Verify that all plated links are aligned with the marks on all sprockets and the "V6" marks on camshaft sprockets are at the 12 o'clock position. CAUTION Ensure the plate between the left secondary chain tensioner and block is correctly installed.
  17. Install both secondary chain tensioners. Tighten bolts to 250 inch lbs. (28 Nm). NOTE Left and right secondary chain tensioners are not common.
  18. Remove all locking pins from tensioners. CAUTION After pulling locking pins out of each tensioner, DO NOT manually extend the tensioner(s) ratchet. Doing so will over tension the chains, resulting in noise and/or high timing chain loads.
  19. Using Special Tool 6958, Spanner with Adaptor Pins 8346, tighten left and right . camshaft sprocket bolts to 90 ft. lbs. (122 Nm).
  20. Rotate engine two full revolutions. Verify timing marks are at the follow locations: ² primary chain idler sprocket dot is at 12 o'clock ² primary chain crankshaft sprocket dot is at 6 o'clock ² secondary chain camshaft sprockets "V6" marks are at 12 o'clock ² counter balancer shaft drive gear dot is aligned to the idler sprocket gear dot.
  21. Lubricate all three chains with engine oil.
  22. After installing all chains, it is recommended that the idler gear end play be checked. The end play must be within mm 0.004-0.010 inches (0.10-0.25). If not within specification, the idler gear must be replaced.
  23. Install timing chain cover and crankshaft damper.
  24. Install cylinder head covers. NOTE Before installing threaded plug in right cylinder head, the plug must be coated with sealant to prevent leaks.
  25. Coat the large threaded access plug with Mopar® Thread Sealant with Teflon, then install into the right cylinder head and tighten to 60 ft. lbs. (81 Nm).
  26. Install the oil fill housing.
  27. Install access plug in left cylinder head.
  28. Install power steering pump.
  29. Fill cooling system.
  30. Connect negative cable to battery.

Dec 07, 2014 | Jeep Cars & Trucks

Tip

Drive Hub, Spring Pulley & Chain Replacement for Steppers


Video about the Drive Hub Replacement Procedure for Stairmaster Steppers

  • This videocovers replacing the spring pulley, the step chain and the drive hub assembly on the Stairmaster steppers
  • Tools needed:
    • Snap Ring Pliers
    • Tip Kit for Snap Ring Pliers
    • Socket Wrench
    • 7/16" Socket
    • 7/16" Wrench
    • Needle Nose or Standard Pliers
    • Safety Goggles
  • Begin by disconnecting the spring
  • Do this by pulling up on the spring and unhooking the spring from the frame post
  • Next, using the snap ring pliers and proper tips, remove the snap ring from the spring pulley shaft
    **Important: Be sure to wear safety goggles when working with snap rings**
  • Remove and inspect the spring pulley for any flat spots replacing the pulley if necessary
    • Flat spots develop over time and can result in roughness in the pedals
  • On the side that the pulley was just removed, slowly press the pedal down
  • Remove the step chain retainer brackets (if equipped) using the 7/16" wrench, 7/16" socket and socket wrench
  • Once the retainer bracket is removed, the spring can be lifted up over the drive sprocket and disconnected from the chain
    • The spring is opened at one end to allow for maneuvering over the link
  • Using the standard or needle nose pliers, remove the master link attaching the step chain to the pedal arm
    • Place one jaw of the pliers against the open end of the clip (if installed correctly, the open end of the clip is opposite the direction of chain travel) and the other jaw of the pliers against the far side of the nearest rivet coming through the keeper link; and squeeze pliers together
    • This should pop the clip free allowing you to remove it from the master link
    • Next remove the link bar
    • Finally remove the master link disconnecting the chain from the pedal arm
  • Inspect the new step chain making sure all the chain links flex
    • Manufacturer recommends lubricating the step chain with 30W motor oil using a clean rag to remove any excess
  • Attach the new step chain to the pedal arm reversing the steps taken to disconnect the chain
  • Relieve tension on the opposite spring by lifting up on the spring and unhooking it from the frame post
  • Slowly press the pedal down
  • Feed the spring around the pulley and lift the chain up over the sprocket to move it out of the way
  • Disconnect the remaining two bolts from the drive hub assembly
  • Lift the drive chain over the sprocket and pull the drive hub from the frame
    • As the drive hub assembly starts to develop problems, you may feel clicking, hear some grinding sounds, or a pedal may stick in one position (which usually happens on one side); All of which are indicators of a worn drive hub assembly
    • The drive hub can be replaced as a complete unit
      • The drive hub consists of (3) sprockets
        • Two one way clutch sprockets that drive in one direction and slip in the opposite direction which are for the step chains
        • A larger sprocket that spins either direction and is for the drive chain
    • An inspection of the drive hub can help determine need for replacement
          • If either of the one way clutch sprockets slip in both directions, they need replaced
          • If there is a catch in any of the sprockets in any position, then it likely needs replaced
  • Reinstall the drive hub the same way it was removed
  • Slip the drive chain over the drive sprocket before mounting the hub assembly to the frame
    • The drive hub assembly on the SC916 stepper only has 4 bolt positions. The drive hub assembly on the 4400 and 4600 steppers has bolt holes all around the hub allowing the hub to be rotated for chain tension adjustment. The SC916 stepper has a preset tension and the adjustment is no longer necessary
  • Once the drive hub is bolted to the frame, reinstall the step chains on each side
  • Place the free end of the step chain (opposite the pedal arm connection) up over the step chain sprocket
  • Lift up on the pedal and pull down on the step chain
  • Place a hand on the sprocket keeping the step chain from feeding back and allowing the pedal to drop
  • Grab the spring with your opposite hand and join the spring to the step chain
  • Once the spring is attached to the chain, press the pedal down again
  • Reinstall the spring pulley and the snap ring onto the pulley shaft
  • Lift up on the pedal and pull the spring to route through the pulley, hooking the spring onto its frame post
  • Repeat these steps to attach the step chain and spring on the opposite side
  • Reinstall the step chain brackets (if equipped) making sure all bolts face the same direction
  • This concludes the video demonstration of replacing the drive hub, spring pulley and chains on the Stairmaster steppers

Spring Pulley Chain Drive Hub Replacement Video for Stairmaster Stepper...

on Feb 25, 2015 | Stairmaster Exercise & Fitness

1 Answer

Need diagram how to install timing chain 2004 Malibu overhead cam


Procedure is pasted below. Please let me know if you have questions.
Removal & Installation2.2L Engine
  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Drain the cooling system.
  3. Drain the engine oil.
  4. Remove or disconnect the following:
    NOTE The timing chain has 2 matching colored links and 1 uniquely colored link.
    Negative battery cable, PCV hose, Fuel line bracket, Ignition coil and module assembly Ground strap from camshaft cover, Camshaft cover, Front fender liner, Accessory drive belt Crankshaft balancer pulley, Accessory drive belt tensioner, Front cover-to-water pump bolt Remaining front cover bolts, Front cover
  5. Rotate the engine until the crankshaft sprocket mark aligns with the matching colored link (2) at the 5 o-clock position.
  6. Confirm that the INT diamond on the intake camshaft sprocket is aligned with the uniquely colored link at (1) the 2 o-clock position.
  7. Confirm that the EXH triangle on the exhaust camshaft sprocket is aligned with the matching colored link (3).
  8. Remove or disconnect the following:
    NOTE Use a 24 mm wrench to hold the camshafts to prevent them from turning.
    Timing chain tensioner, Fixed timing chain guide access plug, Fixed timing chain guide Upper timing chain guide, Exhaust camshaft sprocket, Timing chain tensioner guide Intake camshaft sprocket, Timing chain through the top of the cylinder head Crankshaft sprocket

    jturcotte_638.jpg

    Fig. Lining up the crankshaft sprocket mark with the colored link in the 5 o-clock position (2).


    jturcotte_639.jpg

    Fig. Aligning the intake camshaft sprocket mark with the colored link in the 2 o-clock position (1).


    jturcotte_640.jpg

    Fig. Aligning the exhaust camshaft sprocket (3).

To install:
  1. Install the crankshaft sprocket with the timing mark in the 5 o-clock position.
  2. Assemble the intake camshaft sprocket to the timing chain with the timing mark lined up with the uniquely colored link (1). Hand tighten a new intake camshaft sprocket bolt.
  3. Lower the timing chain through the opening in the cylinder head.
  4. Route the timing chain around the crankshaft sprocket and line up the first marching colored link (2) with the timing mark on the crankshaft sprocket.
  5. Install the exhaust camshaft sprocket with a new bolt loosely onto the exhaust camshaft.
  6. Align the timing mark on the sprocket with the last matching colored (3).
  7. If necessary, align the camshaft as follows:
    1. Using a 24 mm wrench, first turn the intake camshaft until the alignment feature on the back of the camshaft sprocket seats in the notch in the front of the intake camshaft.
    2. Turn the crankshaft 45 degrees in either direction.
    3. Turn the intake camshaft to the appropriate location.
    4. Turn the crankshaft back to top dead center (TDC).
  8. When the sprocket seats in on the camshaft, tighten the sprocket bolt hand tight.
  9. Verify all of the colored links and the appropriate timing marks are still aligned.
  10. Install the fixed timing chain guide. Tighten the bolts to 133 inch lbs. (15 Nm).
  11. Install the upper timing chain guide. Tighten the bolts to 89 inch lbs. (10 Nm).
  12. Using a 24 mm wrench to hold the camshafts, tighten the camshaft sprocket bolts 63 ft. lbs. (85 Nm) plus 30 degrees.
  13. Measure the timing chain tensioner from end to end. A new tensioner should be supplied in the fully compressed non-active state. A tensioner in the compressed state will measure 2.83 inches (72 mm) front end to end. A tensioner in the active state will measure 3.35 inches (85 mm) from end to end.
  14. If the timing chain tensioner is not in the compressed state, perform the following steps:
    1. Remove the piston assembly from the body of the timing chain tensioner by pulling it out.
    2. Install the bottom half of the Tensioner tool J-45027-2 into a vise.
    3. Install the notch end of the piston assembly into the bottom half of the tensioner tool.
    4. Using the top half of the Tensioner tool J-45027-1, turn the ratchet cylinder into the piston.
    5. Install the compressed piston assembly back into the timing chain tensioner body until it stops at the bottom of the bore. Do not compress the piston assembly against the bottom of the bore.

  15. Install the timing chain tensioner assembly. Tighten to 66 ft. lbs. (75 Nm).
  16. Release the timing chain tensioner by compressing it approximately 0.08 inches (2mm). Feed a rubber-tipped tool down through the cam drive chest to reset on the cam chain. Give the tool a sharp jolt diagonally downwards to release the tensioner.
  17. Install the timing chain oiling nozzle.
  18. Install the timing chain guide bolt access hold plug with silicone sealant on the threads. Tighten the plug to 59 ft. lbs. (90 Nm).
  19. Install or connect the following:

    Camshaft cover. Tighten the bolts to 89 inch lbs. (10 Nm). Front cover with new gasket. Tighten the bolts to 18 ft. lbs. (25 Nm). Accessory drive belt tensioner. Tighten the bolts to 33 ft. lbs. (45 Nm). Crankshaft balancer pulley using a new bolt. Tighten the bolt to 74 ft. lbs. (100 Nm) plus 75 degrees. Accessory drive belt, Front fender liner, Ground strap to camshaft cover Ignition coil and module assembly, Fuel line bracket, Air intake assembly, Negative battery cable
  20. Refill the cooling system to the correct level.
  21. Refill the engine with oil to the correct level.
  22. Start the engine and check for leaks.

    jturcotte_2381.gif

    Fig. Compressing the timing chain tensioner-2.2L engine.

Oct 06, 2011 | 2004 Chevrolet Malibu

1 Answer

How do I change a front sprocket?


Thank you for contacting FixYa with your inquiry.
Go to this link and drill down to below indicated: http://cyclehuttktm.com/FicheFinderNew/FicheFinder.aspx 2001 > 400 SX RACING > ENGINE > TRANSMISSION II
You can loosen the chain tension from the adjusters at the end of the swing arm. Then remove the mud guard (If exists) covering the front sprocket. Remove the M10 X 18mm bolt holding the sprocket. Slide the sprocket and chain off the spline and change out. If unable to slide off the spline you can always open the master link on the chain and do same step.

Use reverse process to re-install new sprocket. Readjust chain tension and make sure to re-tighten axel nuts. Good idea to use Locktite on the 10 x 18 bolt and spring washer holding the front sprocket. Replace mud guard or leave off as to your preference.
Kind regards,
TF



Jul 21, 2011 | 2001 KTM SX 400 Racing

1 Answer

The chain on my chainsaw is loose. It has a grey and green round lever on the right side; do I have to use thgat to adjust the tension?


The round lever is to remove the panel that covers the end of the bar and chain. You need to remove the panel and you'll find a little bolt on the inside of it that pulls the bar tight. The bolt has a nut on it that can be turned to loosen or tighten the chain. Before you put the panel back on be sure that the teeth of the chain are fitted into the sprocket so that when you pull the chain the sprocket turns.

May 30, 2011 | Poulan Garden

1 Answer

2005 f250 5.4 gas need to know specs for timing a diagram would be awesome


To Install:
  1. Install balance shaft drive gear onto the left camshaft.
  2. Install the camshaft sprockets and new bolts finger tight.
  3. Using a vise, compress the timing chain tensioner plunger.
  4. Install a retaining clip on the tensioner to hold plunger IN during installation.
    marking timing chain a0038720.gif

  5. If timing chain copper links are not visible, mark 2 links on one end and 1 link on the other end to be used as timing marks.
  6. Install right and left timing chain guides. Tighten bolts to 89 in-lbs (10 Nm).
  7. Rotate the left camshaft until the timing mark is at the 12 o'clock position.
  8. Rotate the right camshaft until the timing mark is at the 11 o'clock position.
  9. Position the crankshaft using the special tool. Then remove the tool.
    Crankshaft special tool positioning n0013602.gif

  10. Install the crankshaft sprocket with flange facing forward.
    Crankshaft sprocket timing mark n0011528.gif

  11. Position lower end of left (inner) timing chain on the crankshaft sprocket. Align the copper (or marked) chain link with the timing mark on the outer flange of the crankshaft pulley. NOTE: Upper half of timing chain must be below the tensioner arm dowel.
  12. Position the left timing chain on the camshaft sprocket. The timing mark on the camshaft sprocket must be aligned between the 2 copper (or marked) chain links.
    Left camshaft sprocket timing mark a0080774.gif

  13. Place the left timing chain tensioner arm on the dowel pin and install the timing chain tensioner and bolts. Tighten bolts to 18 ft-lbs (25 Nm). NOTE: Lower half of timing chain must be above the tensioner arm dowel.
    Crankshaft sprocket timing mark a0079624.gif
  14. Position lower end of right (outer) timing chain on the crankshaft sprocket. Align the copper (or marked) chain link with the timing mark on the outer flange of the crankshaft pulley.
    Right camshaft sprocket timing mark a0041104.gif

  15. Position the right timing chain on the camshaft sprocket. The timing mark on the camshaft sprocket must be aligned between the 2 copper (or marked) chain links.
  16. Place the right timing chain tensioner arm on the dowel pin and install the timing chain tensioner and bolts. Tighten bolts to 18 ft-lbs (25 Nm).
  17. Remove the retaining clips from the right and left timing chain tensioners.
  18. Verify alignment of all timing marks.
  19. Install crankshaft sensor ring on crankshaft.
  20. Locate index mark on balance shaft and mark corresponding gear tooth with chalk.
  21. Position balance shaft on journals. NOTE: It may be helpful to use an inspection mirror to view the marks timing marks.
  22. Align the chalk mark on the balance shaft with the camshaft timing mark.
    Balance shaft bearing caps n0007112.gif

  23. Install the balance shaft bearing caps in their original locations. Follow the tightening sequence as shown in the illustration. Tighten bolts to 89 in-lbs (10 Nm).
  24. Tighten the camshaft phaser sprocket bolts in the correct sequence using 2 steps, as follows:
    • Step 1-30 ft-lbs (40 Nm)
    • Step 2-tighten an additional 90 degrees
  25. Position the crankshaft keyway in the 11 o'clock position.
  26. Lubricate and install all camshaft roller followers. WARNING
    Engine front cover replacement procedure must be completed within 4 minutes or entire procedure must be repeated. Failure to do so may result in future leaks

Oct 07, 2010 | Ford F-250 Cars & Trucks

1 Answer

What is the position for the timing chain gears.


Timing Chain and Sprockets REMOVAL & INSTALLATION 2.3L and 2.4L Engines The following tools will be required to perform this procedure:
  • Camshaft sprocket timing alignment pins - J 36008 or equivalent
  • Camshaft sprocket wrench - J 39579 or equivalent
  1. Fig. 1: View of the DOHC engine "timed position'' - 2.3L and 2.4L engines 86883175.gif
    Fig. 2: View of the SOHC engine "timed position'' - 2.3L engine 86883176.gif
  2. Remove the timing chain guides. There are usually three.
  3. Raise and safely support the front of the vehicle.
  4. Make sure all of the slack is above the tensioner. Gently pry off timing chain tensioner spring retainer, then remove the spring. NOTE: On the 2.3L engine two styles of tensioners are used. Early production engines will have a spring post and late production ones will not. Both styles are identical in operation and are interchangeable.
  5. Remove the timing chain tensioner shoe retainer.
  6. Make sure all the slack in the timing chain is above the tensioner assembly; remove the chain tensioner shoe. The timing chain must be disengaged from the wear grooves in the tensioner shoe in order to remove the shoe. Slide a suitable small prybar under the timing chain while pulling shoe outward.
  7. If difficulty is encountered while removing chain tensioner shoe, proceed as follows:
    1. Lower the vehicle.
    2. Hold the intake camshaft sprocket with a camshaft sprocket wrench - J 39579 or equivalent holding tool and remove the sprocket bolt and washer.
    3. Remove the washer from the bolt and re-thread the bolt back into the camshaft by hand. The bolt provides a surface to push against.
    4. Remove intake camshaft sprocket using a 3-jaw puller in the 3 relief holes in the sprocket. NOTE: Do NOT try to pry the sprocket off the camshaft or damage to the sprocket or chain housing could occur.
  8. Unfasten the tensioner assembly attaching bolts, then remove the tensioner. CAUTION
    The tensioner piston is spring loaded and could fly out causing personal injury. Use care when removing.
  9. Matchmark the timing chain outer surface for reassembly purposes.
  10. If equipped, remove the chain housing to block stud, which is actually the timing chain tensioner shoe pivot.
  11. Remove the timing chain.
  12. Inspect the parts for wear, then replace if necessary. Some scoring of the timing chain shoe and guides is normal. Clean the old sealant off of the bolt with a wire brush. Clean the threaded hole in the camshaft with a round nylon bristle brush. To install: WARNING
    Failure to following installation procedures can result in severe engine damage.
  13. Install the intake camshaft sprocket onto the camshaft with the marked surface showing. Install the sprocket retaining bolt and washer. Use an adhesive compound 12345493 or equivalent on the bolt. Tighten the bolt to 52 ft. lbs. (70 Nm), while holding the sprocket with tool J-36013, J 39579 or equivalent, if removed.
  14. Install tool J 36800 or equivalent, through hole(s) in the camshaft sprocket(s) into the holes in the timing chain housing. This positions the camshafts for correct timing. Fig. 3: Placing the camshaft sprockets onto the marked surface of the camshaft 91063g30.gif
  15. If the camshafts are out of position and must be rotated more than 1?8 turn in order to install the alignment dowel pins:
    1. The crankshaft must be rotated 90°clockwise off of TDC in order to give the valves adequate clearance to open.
    2. Once the camshafts are in position and the dowels installed, rotate the crankshaft COUNTERCLOCKWISE back to TDC. NOTE: Do NOT rotate the crankshaft clockwise to TDC, or valve and piston damage could occur. WARNING
      The side of the timing chain that was marked must be facing outward when installed.
  16. For DOHC engines only, install the timing chain over the exhaust camshaft sprocket, around the idler sprocket and around the crankshaft sprocket.
  17. Remove the alignment dowel pin from the intake (DOHC only) camshaft. Using dowel pin remover tool J 39579 or equivalent, rotate the intake (DOHC only) camshaft sprocket counterclockwise enough to slide the timing chain over the intake (DOHC only) camshaft sprocket. Release the camshaft sprocket wrench. The length of chain between the two camshaft sprockets will tighten. If properly timed, the intake camshaft alignment dowel pin should slide in easily. If the dowel pin does not fully index, the camshafts are not timed correctly and the procedure must be repeated. Fig. 4: Place the timing chain over the exhaust camshaft and around the idler sprocket and around the crankshaft sprocketDOHC engines 91063g31.gif
  18. Leave the alignment dowel pins installed.
  19. Raise and safely support the vehicle.
  20. With slack removed from chain between intake camshaft sprocket (camshaft sprocket for SOHC engines) and crankshaft sprocket, the timing marks on the crankshaft and the cylinder block should be aligned. If marks are not aligned, move the chain one tooth forward or rearward, remove the slack and recheck the marks.
  21. If equipped, tighten the chain housing to block stud. The stud is installed under the timing chain. Tighten to 19 ft. lbs. (26 Nm).
  22. For vehicles through 1991, reload timing chain tensioner assembly to its "zero'' position as follows:
    1. Assemble restraint cylinder, spring and nylon plug into plunger. Index slot in restraint cylinder with peg in plunger. While rotating the restraint cylinder clockwise, push the restraint cylinder into the plunger until it bottoms. Keep rotating the restraint cylinder clockwise but allow the spring to push it out of the plunger. The pin in the plunger will lock the restraint in the loaded position.
    2. Install tool J-36589 or equivalent, onto plunger assembly.
    3. Install plunger assembly into tensioner body with the long end toward the crankshaft when installed.
  23. For 1992-98 vehicles, reload timing chain tensioner assembly to its "zero'' position as follows:
    1. Form a keeper from a piece of heavy gauge wire. See the accompanying figure.
    2. Apply slight force on the tensioner blade to compress the plunger.
    3. Insert a small prybar into the reset access hole, then pry the racket pawl away from the ratchet teeth while forcing the plunger completely in the hole.
    4. Install the keeper between the access hole and the blade. Fig. 5: View of reloading the timing chain tensioner assembly to its "zero'' position - 1992-98 vehicles 86883177.gif
  24. Install the tensioner assembly to the chain housing. Recheck the plunger assembly installation. It is correctly installed when the long end is toward the crankshaft.
  25. Install and tighten timing chain tensioner bolts. Tighten to 89 inch lbs. (10 Nm).
  26. Install the tensioner shoe and tensioner shoe retainer. Remove the special tool J-36589, then squeeze the plunger assembly into the tensioner body to unload the plunger assembly.
  27. Lower vehicle enough to reach and remove the alignment dowel pins.
  28. Rotate crankshaft clockwise (normal rotation) two full rotations. Align the crankshaft keyway with the mark on the cylinder block, then reinstall the alignment dowel pins. The pins will slide in easily if the engine is timed correctly. WARNING
    If the engine is not correctly timed, severe engine damage could occur.
  29. Install the timing chain guides and, if equipped, the crankshaft oil slinger.
  30. Install the timing chain front cover. For details, please refer to the procedure located in this section.
  31. Connect the negative battery cable, then start the engine and check for oil leaks.

Oct 07, 2010 | 1998 Buick Skylark

1 Answer

What is the right way to time a 4cyl Chevy S-10 timing chain


1998-2003 To Remove:
  1. Remove or disconnect the following:
    • Crankshaft pulley and hub
    • Drive belt tensioner gm_truck_s10_tcbolts.gif

    • Timing chain cover bolts gm_truck_s10_tc.gif

    • Timing chain cover and gasket
  2. Install a bolt in the end of the crankshaft CAUTION
    Do not install the crankshaft balancer bolt or a bolt longer than 1 inch or damage to the crankshaft threaded hole will result.
  3. Rotate crankshaft until the number 1 piston is at Top Dead Center of compression stroke.
  4. Make sure that the alignment marks are aligned with the tabs on the timing chain tensioner. gm-03-22-611.gif

  5. Measure distance between hole in bracket and unworn surface of timing chain tensioner shoe. NOTE: If distance between the hole and unworn surface of timing chain tensioner is greater than 0.314 in (8 mm), replace tensioner, timing chain and sprockets.
  6. Remove timing chain tensioner bolts.
  7. Remove the timing chain, timing chain tensioner and camshaft sprocket at the same time.
  8. Remove the crankshaft sprocket using special tool J 22888-20A or equivalent.
  9. Remove crankshaft sprocket alignment key.
gm-03-22-612.gif

NOTE: If any camshaft components are being replaced to correct a noise problem, all camshaft drive components must be replaced.
To Install:
  1. Install the crankshaft sprocket alignment key.
  2. Install the crankshaft sprocket using special tool J 5590 or equivalent. gm-03-22-613.gif

  3. Compress the timing chain tensioner spring and insert a pin into the tensioner hole to retain the tensioner shoe.
  4. Install timing chain and timing chain tensioner (do not tighten tension bolts).
  5. Align the crankshaft and camshaft timing marks with the tab on the timing chain tensioner.
  6. Tighten the timing chain tensioner bolts.
    • Torque to: 18 ft lbs (24 Nm)
  7. Tighten the camshaft sprocket bolt.
    • Torque to: 96 ft lbs (130 Nm)
  8. Remove pin from timing chain tensioner hole.
  9. Remove bolt from end of crankshaft. CAUTION
    Inspect the timing chain cover for warping or damage. Replace if needed.
  10. Clean all timing chain cover mating surfaces.
  11. Install or connect the following:
    • Timing chain cover to the engine block
      1. Ensure that the gasket is installed properly in the groove in the timing chain cover
    • Timing chain cover and make sure it fully seated on the alignment dowel pins
    • Timing chain cover bolts
      1. Torque to: 97 inch lbs (11 Nm)
    • Drive belt tensioner
    • Crankshaft damper hub and the crankshaft pulley

Aug 17, 2010 | 2000 Chevrolet S-10

1 Answer

Replacing timing chain on ttr 90


There should be a timing mark on the magneto, rotate crank until line is visible thru inspection hole. This will position engine at Top Dead Centre. Have head complete with gaskets, valves, springs and camshft in place and position with camshaft chain in ready position, (you have to hold chain thru camchain opening) Place head on and bolt tight (no need to torque down yet) and pull camchain tight on opposite side to tensioner (fully loosened) and feed over camchain sprocket, take up tension with tensioner screw/bolt. This will have engine TDC with valves closed (as if to fire) rotate engine by hand and ensure tracking of camchain and tension is steady on chain. Valves should actuate in time. Have a close look on camchaim sprocket and a mark of some sort should show against corresponding mark on camshaft journal cuos.


http://www.yamahaownershandbook.com.au/index.php

Need the Manual: Down load from the link above, enter model, make year and download for free. (It's in four languages however) The relevent detail is in chapter 4-8 to 4-13. I think, Cheers.

May 02, 2010 | 2002 Yamaha TT-R 250

2 Answers

Timing on 4.7 help


INSTALLATION
  1. Using a vise, lightly compress the secondary chain tensioner piston until the piston step is flush with the tensioner body. Using a pin or suitable tool, release ratchet pawl by pulling pawl back against spring force through access hole on side of tensioner. While continuing to hold pawl back, Push ratchet device to approximately 2 mm from the tensioner body. Install Special Tool 8514 lock pin into hole on front of tensioner. Slowly open vise to transfer piston spring force to lock pin (Resetting Secondary Chain Tensioners).
  2. Position primary chain tensioner over oil pump and insert bolts into lower two holes on tensioner bracket. Tighten bolts to 28 N·m (250 in. lbs.). CAUTION: Overtightening the tensioner arm torx® bolt can cause severe damage to the cylinder head. Tighten torx® bolt to specified torque only.
  3. Install right side chain tensioner arm. Apply Mopar® Lock N, Seal to torx® bolt, tighten bolt to 17 N·m (150 in. lbs.). NOTE: The silver bolts retain the guides to the cylinder heads and the black bolts retain the guides to the engine block.
  4. Install the left side chain guide. Tighten the bolts to 28 N·m (250 in. lbs.). CAUTION: Overtightening the tensioner arm torx® bolt can cause severe damage to the cylinder head. Tighten torx® bolt to specified torque only.
  5. Install left side chain tensioner arm. Apply Mopar® Lock N, Seal to torx® bolt, tighten bolt to 17 N·m (150 in. lbs.).
  6. Install the right side chain guide. Tighten the bolts to 28 N·m (250 in. lbs.).
  7. Install both secondary chains onto the idler sprocket. Align two plated links on the secondary chains to be visible through the two lower openings on the idler sprocket (4 o'clock and 8 o'clock). Once the secondary timing chains are installed, position special tool 8515 to hold chains in place for installation (Installing Secondary Timing Chains on Idler Sprocket).
  8. Align primary chain double plated links with the timing mark at 12 o'clock on the idler sprocket. Align the primary chain single plated link with the timing mark at 6 o'clock on the crankshaft sprocket (Timing Chain System).
  9. Lubricate idler shaft and bushings with clean engine oil.
  10. Install all chains, crankshaft sprocket, and idler sprocket as an assembly (Installing Idler Gear, Primary and Secondary Timing Chains). After guiding both secondary chains through the block and cylinder head openings, affix chains with a elastic strap or the equivalent, This will maintain tension on chains to aid in installation. NOTE: It will be necessary to slightly rotate camshafts for sprocket installation.
  11. Align left camshaft sprocket “L” dot to plated link on chain.
  12. Align right camshaft sprocket “R” dot to plated link on chain. CAUTION: Remove excess oil from the camshaft sprocket bolt. Failure to do so can result in over-torque of bolt resulting in bolt failure.
  13. Remove Special Tool 8515, then attach both sprockets to camshafts. Remove excess oil from bolts, then Install sprocket bolts, but do not tighten at this time.
  14. Verify that all plated links are aligned with the marks on all sprockets and the “V8” marks on camshaft sprockets are at the 12 o'clock position (Timing Chain System). CAUTION: Ensure the plate between the left secondary chain tensioner and block is correctly installed.
  15. Install both secondary chain tensioners. Tighten bolts to 28 N·m (250 in. lbs.). NOTE: Left and right secondary chain tensioners are not common.
  16. Before installing idler sprocket bolt, lubricate washer with oil, and tighten idler sprocket assembly retaining bolt to 34 N·m (25 ft. lbs.).
  17. Remove all locking pins (3) from tensioners. CAUTION: After pulling locking pins out of each tensioner, DO NOT manually extend the tensioner(s) ratchet. Doing so will over tension the chains, resulting in noise and/or high timing chain loads.
  18. Using Special Tool 6958, Spanner with Adaptor Pins 8346, tighten left (Tightening Left Side Camshaft Sprocket Bolt) and right (Tightening Right Side Camshaft Sprocket Bolt). camshaft sprocket bolts to 122 N·m (90 ft. lbs.).
  19. Rotate engine two full revolutions. Verify timing marks are at the follow locations:
  20. Lubricate all three chains with engine oil.
  21. After installing all chains, it is recommended that the idler gear end play be checked (Measuring Idler Gear End Play). The end play must be within 0.10–0.25 mm (0.004–0.010 in.). If not within specification, the idler gear must be replaced.
  22. Install timing chain cover (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT / CHAIN COVER(S) - INSTALLATION) and crankshaft damper (Refer to 9 - ENGINE/ENGINE BLOCK/VIBRATION DAMPER - INSTALLATION).
  23. Install cylinder head covers (Refer to 9 - ENGINE/CYLINDER HEAD/CYLINDER HEAD COVER(S) - INSTALLATION). NOTE: Before installing threaded plug in right cylinder head, the plug must be coated with sealant to prevent leaks.
  24. Coat the large threaded access plug with Mopar® Thread Sealant with Teflon, then install into the right cylinder head and tighten to 81 N·m (60 ft. lbs.) (Cylinder Head Access Plug Location).
  25. Install the oil fill housing.
  26. Install access plug in left cylinder head (Cylinder Head Access Plug Location).
  27. Install power steering pump (Refer to 19 - STEERING/PUMP - INSTALLATION).
  28. Install radiator fan shroud.
  29. Fill cooling system (Refer to 7 - COOLING - STANDARD PROCEDURE).
  30. Connect negative cable to battery.

Jul 08, 2009 | 2000 Dodge Durango

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