Question about Mazda MAZDA3

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On a 2004 Mazda 3 how does the camshaft attach to the camshaft sprocket? I'm looking at a pic online. Is there a dowel pin, woodruff key, etc. that properly aligns the two up prior to securing the center bolt with Loc-tite? I am assisting a nephew who tells me that BOTH bolts holding on intake and exhaust camshaft sprockets were "finger" tight. As the motor has never been into, any ideas on this? Thanks P.S. A professional mechanic is doing the work, I'm just trying to understand how this happened, and he also says there appears to be no alignment dowel or woodruff key.

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  • water2live4 Sep 07, 2010

    Thanks for the fast response. It was just what the doctor ordered. Thanks!!

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Go to the link below for the full installation procedure for a new timing chain, it looks like it is all there. You must register to see illustrations, it is free and very easy, once u have registered use the backup to get the web page up and running.

http://www.justanswer.com/questions/2p4hd-how-do-i-set-the-timing-on-a-2004-mazda-3-with-a-2-0

Posted on Sep 05, 2010

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Need the timing marks for a 2000 alero


please let me know if you have questions.
2.4L Engine
NOTE It is recommended that the entire procedure be reviewed before attempting to service the timing chain.
  1. Before servicing the vehicle, refer to the precautions section.
  2. Drain the cooling system.
  3. Remove or disconnect the following: Negative battery cable, Coolant surge tank, Accessory drive belt, Alternator
  4. Install an engine support.
  5. Remove or disconnect the following: Upper cover fasteners, Front cover vent hose, Right engine mount and bracket, Right front wheel, Right lower splash shield, Crankshaft balancer, Lower cover fasteners, Front cover
  6. Rotate the crankshaft clockwise, as viewed from front of engine (normal rotation) until the camshaft sprocket's timing dowel pin holes align with the timing chain housing holes. The crankshaft sprocket mark should align with the engine mark. The crankshaft sprocket keyway should point upward and align with the cylinder bores centerline. This is the normal timed position.
  7. Remove the timing chain guides.
  8. Remove the timing chain tensioner.
    NOTE Be sure all the slack in the timing chain is above the tensioner assembly when removing it. CAUTION The tensioner plunger is spring loaded and could fly out causing personal injury.
  9. Remove or disconnect the following: Timing chain, Camshaft sprockets

To install:
  1. Install or connect the following: Camshaft sprockets. Torque the bolts to 52 ft. lbs. (70 Nm),
    Camshaft sprocket alignment pin through the camshaft sprockets holes into the timing chain housing holes to position the camshafts for timing.
  2. If the camshafts are out of position and must be rotated more than 1 / 8 turn in order to install the alignment dowel pins, perform the following:
    1. Rotated the crankshaft 90 degrees clockwise off Top Dead Center (TDC) in order to give the valves adequate clearance to open.
    2. Once the camshafts are positioned and the dowels installed, rotate the crankshaft counterclockwise back to TDC.
      WARNING Do not rotate the crankshaft clockwise to TDC or valve and piston damage may occur.
  3. Install the timing chain over the exhaust camshaft sprocket, around the idler sprocket and around the crankshaft sprocket.
    jturcotte_2361.gifjturcotte_2362.gif

    Fig. Timing chain and sprocket alignment positions-2.4L DOHC engine

  4. Remove the alignment dowel pin from the intake camshaft. Using a dowel pin remover tool, rotate the intake camshaft sprocket counterclockwise enough to slide the timing chain over the intake camshaft sprocket. Release the camshaft sprocket wrench. The length of chain between the 2 camshaft sprockets will tighten.
    NOTE 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.
  5. Leave the alignment dowel pins installed.
  6. With slack removed from chain between intake camshaft sprocket and crankshaft sprocket, the timing marks on the crankshaft and the cylinder block should be aligned. If marks are not aligned, move the chain 1 tooth forward or rearward, remove slack and recheck the marks.
  7. Tighten the chain housing to engine stud. The stud is installed under the timing chain. Torque it to 19 ft. lbs. (26 Nm).
  8. Reload the timing chain tensioner as follows:
    1. Form a keeper from heavy gauge wire.
    2. Slightly, compress the shoe plunger and insert a small screwdriver into the access hole.
    3. Release the ratchet pawl and compress the plunger completely into the hole.
    4. Insert the keeper between the access hole and the blade.
  9. Install or connect the following:
    Tensioner assembly to the chain housing. Torque the bolts to 89 inch lbs. (10 Nm). Tensioner shoe and retainer. Torque the bolts to 89 inch lbs. (10 Nm). NOTE Recheck plunger assembly installation. It is correctly installed when the long end is toward the crankshaft.
  10. Remove the alignment dowel pins. Rotate crankshaft clockwise 2 full rotations. Align the crankshaft timing mark with mark on cylinder block and reinstall alignment dowel pins. Alignment dowel pins will slide in easily if engine is timed correctly.
    WARNING If the engine is not correctly timed, severe engine damage could occur.
  11. Install or connect the following: Timing chain guides, New seal into the front cover by lubricating the seal lip and tapping it into place, Front cover and gaskets. Torque the nuts and bolts to 106 inch lbs. (12 Nm), Crankshaft balancer. Torque the bolt to 129 ft. lbs. (175 Nm), Right front lower splash shield, Front wheel. Torque the nuts to 100 ft. lbs. (140 Nm), Right engine mount bracket. Torque the bolts to 81 ft. lbs. (110 Nm) plus an additional 90 degree turn, Right engine mount. Torque the bolt to 49 ft. lbs. (60 Nm), Upper cover vent hose
  12. Remove the engine support.
  13. Install or connect the following: Alternator. Torque the bolts to 37 ft. lbs. (50 Nm), Accessory drive belt, Coolant surge tank, Negative battery cable.
  14. Refill the cooling system.
  15. Start the engine and check for leaks.

Oct 04, 2011 | Cars & Trucks

1 Answer

Timing mark settings for a 1988 Chevy Corsica 2.8 L fi v6 automatic


The locationmarks on the cam & the crank are in the sam positon on both the 2.8 & 3.1 Multi Port Fuel injection (2.8 MPI) The timing marks on the geared sprockets should both be at 12 o'clock. The lower sprocket, is in the correct position due to the woodruff key (spline). On the Camshaft, be sure that the Dowel pin is at 9 o'clock when the three sprocket bolts are installed. Hope this helps.

Sep 08, 2011 | Chevrolet Corsica Cars & Trucks

1 Answer

I need a timing diagram for a 1994 mazda mx3 dohc 1.6 l 4cly obd 1


firing order 1 3 4 2 counter clockwise on distributor the timing marks are located on the crankshaft sprocket and cam shaft sprocket disconnect the negative battery terminal prier to any work preformed and pull the spark plugs for an easier turn align the dowel pin on cam shaft with the dowel pin facing straight up the crank shaft pin should also aim straight up. turn the crankshaft twice to ensure they stay aligned

May 04, 2011 | 1994 Mazda MX-3

1 Answer

I took camgears off cams to replace bent valves. Need to know where cam dowel pins go to put camgears back on with engine is at tdc.


Install the camshaft sprockets onto the camshaft. Be sure to align the I mark with the intake camshaft dowel pin and the E mark with the exhaust camshaft dowel pin, then tighten the retaining bolt to 36-44 ft. lbs. (49-61 Nm).

Feb 09, 2011 | 2004 Kia Rio

2 Answers

2001 chev cavalier timming chain diagram


Timing Chain and Gears REMOVAL & INSTALLATION 2.2L Engine Fig. 1: The timing marks on the sprockets should be in alignment. If not, turn the crankshaft until the marks are aligned 91113p63.jpg
Fig. 2: The timing chain tensioner is retained by a Torx head bolt (1) and a regular hex head bolt (2) 91113p58.jpg
Fig. 3: Unfasten the camshaft sprocket bolt 91113p59.jpg
Fig. 4: Remove the camshaft sprocket and the timing chain at the same time . . . 91113p60.jpg
Fig. 5: . . . then remove the tensioner assembly 91113p61.jpg
Fig. 6: Compress the tensioner spring and insert a cotter pin or nail in the hole provided to hold the tensioner in position 91113p62.jpg
  1. Disconnect the negative battery cable.
  2. Remove the front cover as previously detailed.
  3. Place the No. 1 piston at TDC of the compression stroke so that the marks on the camshaft and crankshaft sprockets are in alignment (see illustration).
  4. Loosen the timing chain tensioner nut as far as possible without actually removing it.
  5. Remove the camshaft sprocket bolts and remove the sprocket and chain together. If the sprocket does not slide from the camshaft easily, a light blow with a soft mallet at the lower edge of the sprocket will dislodge it.
  6. Using a suitable gear puller, remove the crankshaft sprocket. To install:
  7. Press the crankshaft sprocket back onto the crankshaft.
  8. Install the timing chain over the camshaft sprocket and then around the crankshaft sprocket. Make sure that the marks on the two sprockets are in alignment (see illustration). Lubricate the thrust surface with Molykote® or its equivalent.
  9. Align the dowel in the camshaft with the dowel hole in the sprocket and then install the sprocket onto the camshaft. Use the mounting bolts to draw the sprocket onto the camshaft and then tighten to 66-68 ft. lbs. (91-95 Nm).
  10. Lubricate the timing chain with clean engine oil. Tighten the chain tensioner.
  11. Installation of the remaining components is in the reverse order of removal. Fig. 7: Exploded view of the timing chain and sprockets - 2.2L OHV engine 87953107.gif

Nov 11, 2010 | Chevrolet Cavalier Cars & Trucks

1 Answer

How to set the timing on 1998 GMC Sierra 5.7


5.0L and 5.7L Engines To Remove:
  1. Remove the crankshaft balancer.
  2. Drain the cooling system.
  3. Remove the water pump.
  4. Drain the engine oil.
  5. Remove all engine oil pan fasteners except two nuts at rear of engine.
  6. Separate the engine oil pan from the front cover.
  7. Disconnect the crankshaft position (CKP) sensor wire. gm-03-50-845.gif

  8. Remove engine front cover. gm-03-50-849.gif

  9. Pry the oil seal from the front cover.
  10. Inspect the front cover seal area and crankshaft balancer seal area for damage. gm-03-50-846.gif

  11. Rotate the crankshaft until the timing marks on the crankshaft and the camshaft sprockets are aligned.
  12. Remove the crankshaft position sensor reluctor ring. gm-03-50-847.gif

    NOTE: Free play on the slack side of the camshaft timing chain must measure less than 0.43 inch (11Mm) or timing chain and sprockets must be replaced.
  13. Remove the camshaft sprocket bolts.
  14. Remove the camshaft sprocket.
  15. Remove the camshaft timing chain. NOTE: Do not turn the crankshaft assembly after the timing chain has been removed in order to prevent damage to the piston assemblies or the valves.
    gm-03-50-848.gif

  16. Remove the crankshaft sprocket using J 5825-A.
  17. Remove the crankshaft balancer woodruff keys (if required).
To Install:
gm-03-50-850.gif

  1. Install the crankshaft balancer woodruff keys into the crankshaft.
  2. Align the crankshaft sprocket keyway with the crankshaft balancer woodruff key. WARNING
    Wear eye protection when installing crankshaft sprocket.
    gm-03-50-851.gif

  3. Use J 5590 to install crankshaft sprocket.
  4. Install the camshaft sprocket and camshaft timing chain. 9308kg61.gif

  5. Ensure that the crankshaft sprocket alignment mark is in the 12 o'clock position and the camshaft sprocket alignment mark is at the 6 o'clock position.
  6. Install the camshaft sprocket bolts and tighten the camshaft sprocket bolts;
    • Torque to: 18 ft. lbs. (25 Nm)
  7. Install the crankshaft position sensor reluctor ring until completely seated against crankshaft sprocket. NOTE: The composite type engine front cover and seal must not be reused. Always install a new engine cover with a new seal.
  8. Install new engine front cover and bolts.
    • Torque bolts to: 106 in. lbs. (12 Nm)
  9. Clean sealer from corners of oil pan gasket where it meets the engine front cover. gm-03-50-775.gif

  10. Apply a 0.196 in (5 mm) bead of adhesive, GM P/N 12346141 or equivalent, 1.0 in (25 mm) long to the engine front cover to engine block junction.
  11. Install oil pan bolts.
    • Torque bolts to: 106 in. lbs. (12 Nm)
  12. Tighten oil pan nuts.
    • Torque bolts to: 18 ft. lbs. (25 Nm)
  13. Connect the crankshaft position sensor wire.
  14. Install the water pump.
  15. Install the crankshaft balancer.
  16. Fill the engine to the proper level with oil.
  17. Fill the engine to the proper level with coolant.
  18. Test drive the vehicle to confirm the repairs.

Nov 05, 2010 | GMC K1500 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

How do i reset the timing in a 1997 z24 Chevrolet Cavalier 2.4 twin cam? Where are the timing marks on the cam gears?


2.3L and 2.4L Engines Before attempting to remove the timing chain, read the entire procedure.
  1. Disconnect the negative battery cable.
  2. Remove the timing chain front cover, as outlined earlier in this section.
  3. Rotate the crankshaft clockwise, as viewed from the front of engine/normal rotation, until the camshaft sprocket timing dowel pin holes line up with the holes in the timing chain housing. The crankshaft sprocket keyway should point upwards and line up with the centerline of the cylinder bores. This is the "timed'' position. Fig. 8: The chain must be in the "timed'' position - 2.3L and 2.4L engines 87953108.gif
    Fig. 9: Remove the timing chain guides 87953109.gif

  4. Remove the timing chain guides.
  5. Raise and safely support the vehicle.
  6. Make sure all of the slack in the timing chain is above the tensioner assembly, then remove the tensioner. The timing chain must be disengaged from any wear grooves in the tensioner shoe in order to remove the shoe. Slide a suitable prytool under the timing chain while pulling the shoe outward. WARNING
    Do NOT attempt to pry the socket off the camshaft or damage to the sprocket or chain housing could occur.
  7. If difficulty is encountered in removing the chain tensioner shoe, remove the intake camshaft sprocket, as follows;
    1. Carefully lower the vehicle.
    2. Hold the intake camshaft sprocket with a suitable tool and remove the sprocket bolt and washer.
    3. Remove the washer from the bolt and rethread the bolt back into the camshaft by hand. The bolt provides a surface to push against.
    4. Remove the camshaft sprocket using a three-jaw puller in the three relief holes in the sprocket.
  8. Unfasten the tensioner assembly retaining bolts, then remove the tensioner. NOTE: The timing chain and crankshaft sprocket MUST be marked before removal. If the chain or sprocket is installed with the wear pattern in the opposite direction, noise and increased wear may occur.
  9. Mark the crankshaft sprocket and timing chain outer surface for reassembly, then remove the chain.
  10. Clean the old sealant off the bolt with a wire brush. Clean the threaded hole in the camshaft with a round nylon brush. Inspect the parts for wear and replace as necessary. Note that some scoring of the chain shoe and guides is normal. To install: WARNING
    Failure to follow this procedure may result in severe engine damage.
  11. Position the intake camshaft sprocket onto the camshaft with the surface marked during removal showing.
  12. Install the intake camshaft sprocket retaining bolt and washer, tighten to 52 ft. lbs. (70 Nm) while holding the sprocket with a suitable tool. Use GM sealant 12345493 or equivalent on the camshaft sprocket bolt.
  13. Place GM tool J 36008, or equivalent camshaft aligning pins, through the holes in the camshaft sprockets into the holes in the timing chain housing. This positions the cams for correct timing.
  14. If the camshafts are out of position and must be rotated more than 1?8 turn in order to install the alignment dowel pins, proceed as follows:
    1. The crankshaft MUST be rotate 90°clockwise off of TDC in order to five the valves adequate clearance to open.
    2. Once the camshafts are in position and the dowels installed, rotate the crankshaft counter clockwise back to TDC. WARNING
      Do not rotate the crankshaft clockwise to TDC; valve or piston damage could result. NOTE: The side of the timing chain that was marked during removal must be showing when the chain is installed.

  15. Place the timing chain over the exhaust camshaft sprockets, around the idler sprocket and around the camshaft sprocket.
  16. Set the camshafts at the timed position and install the timing chain. Remove the alignment dowel pin from the intake camshaft. Using GM tool J 39579, rotate the intake camshaft sprocket counter clockwise enough to slide the timing chain over the intake camshaft sprocket. Release the camshaft sprocket wrench (J 39579 or equivalent). The length of the 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.
  17. Leave the alignment dowel pins installed. Raise and safely support the vehicle.
  18. With the slack removed from the chain between the intake camshaft sprocket and the crankshaft sprocket, the timing marks on the crankshaft and cylinder block should be aligned. If the marks are not aligned, move the chain one tooth forward or rearward, remove the slack and recheck the marks. Fig. 10: Timing chain assembly retaining bolts - 2.3L and 2.4L engines 87953111.gif

  19. Reload the timing chain tensioner assembly to its "zero'' position as follows:
    1. Form a keeper from a piece of heavy gauge wire, as shown in the accompanying figure.
    2. Apply slight force on the tensioner blade to compress the plunger.
    3. Insert a small prytool into the reset access hole, and pry the ratchet 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. 11: Reloading the tensioner to its "ZERO'' position, then install to the chain housing 87953110.gif

  20. Install the tensioner assembly to the timing chain housing. Recheck the plunger assembly installation, it is correctly installed when the long end is toward the crankshaft. Install the tensioner retaining bolts; tighten to 89 inch lbs. (10 Nm).
  21. Carefully lower the vehicle enough to reach and remove the alignment dowel pins. WARNING
    Severe engine damage could result if the engine is not properly timed.
  22. Rotate the crankshaft clockwise (normal rotation) two full rotations. Align the crankshaft keyway with the mark on the cylinder block and reinstall the alignment dowel pins. The pins will slide in easily if the engine is correctly timed.
  23. Install the timing chain guides, then install the front (timing chain) cover.
  24. Connect the negative battery cable.
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Oct 02, 2010 | 1997 Chevrolet Cavalier

4 Answers

Nissan navara 1986 2.4L petrol timing problem


For timing, on 1981 and later 4 cyl engines (from the Haynes manual):
1. Turn camshaft so both valves for #1 cylinder are closed, and turn the crankshaft so #1 piston is at top dead center (woodruff key should be pointing up).
2. Engage the camshaft sprocket (with stamped numbers facing out) into the timing chain, and install the chain around the crankshaft sprocket. The bright links on the chain should be aligned with the timing mark on the crankshaft sprocket (on the right side as you look at it) and with the number "2" stamped into the camshaft sprocket, which should also be on the right side as you look at it.
3. Install the camshaft sprocket onto the camshaft, aligning the camshaft dowel pin with the number "2" hole near the center of the sprocket.

For the firing order and wiring routing for the 8 plug 4 cylinder engine: (Plugs on the intake manifold side are coded "I", and on the exhaust manifold side are coded "E")

Wire to 1I should be connected to tower on the distributor facing directly to the front of the vehicle. Going counterclockwise from there, the order is (1I), 2E, 3I, 1E, 4I, 3E, 2I, and 4E.

Oct 09, 2008 | 1986 Nissan Pickup 4WD 1986

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