Anyone have a problem getting tension on the small timing chain tensioner it is a plunger type and called the secondary tensioner on a 2000 chevy tracker 2 litre. as well there is slack in the chain and when the cams come off the lifters when turned by hand the tensioner goes back in and makes a clicking sound
Ours did the same thing when turning by hand. make sure you have timing marks correct then start engine let idle DO NOT give it gas it will quiet down in just a few minutes. It gets its pressure from oil pressure no way to prime it by hand. hope this helps
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There are a lot of steps, and you need to take your time. You will need access to a lift or jack stand, and make sure you keep the work area clean and organised, taking photos of the timing system will make your life easier when it comes to re-timing the engine.
Camshaft Timing Chain, Sprocket, and Tensioner Replacement Removal ProcedureCaution: Refer to Battery Disconnect Caution in Cautions and Notices. Notice: The timing chain on the LD9 (VIN T) Twin Cam Engine is not to be replaced with the timing chain from any other model year. The timing sprockets are different on the Twin Cam engine and the shape of the links matches the sprockets. Engine damage may result if the wrong timing chain is used. The timing chain and the crankshaft sprocket must be marked so that they are reinstalled in the same side facing out at the time of reassembly.
Ensure that all of the slack in the timing chain is above the tensioner assembly.
Remove the timing chain tensioner bolts and the tensioner.
Remove the tensioner shoe. Use a small locking ring plier in order to engage the hole in the locking tab and remove the shoe from the stud.
Notice: Do not attempt to pry the sprocket off the camshaft or damage to the sprocket or chain housing could occur. Important: Mark the timing chain and the crankshaft sprocket prior to removal. If the chain or the crankshaft sprocket is installed with the wear pattern in the opposite direction, noise and increased wear may occur.
Mark the crankshaft sprocket and the timing chain outer surface.
Remove the timing chain.
Lower the vehicle.
Holding the intake camshaft sprocket with J 39579, remove the sprocket bolt and washer.
Remove the washer from the bolt and rethread the bolt back into the camshaft.
Using a 3-jaw puller and the relief holes in the sprocket, remove the intake camshaft sprocket.
Repeat this procedure for the exhaust camshaft sprocket.
Clean the old sealant from the bolt with a wire brush.
Clean the threaded hole in the camshaft with a round nylon bristle brush.
Inspect the parts for wear. Replace the parts as necessary.Some scoring of the timing chain shoe and the guides is normal.
Replace the timing chain shoe or guides if the scoring exceeds 1.12?mm (45?in).
Use Adhesive/Sealant Compound GM?P/N?12345493 or equivalent on the camshaft sprocket bolt.
Install the intake and exhaust camshaft sprockets onto the camshafts with the marked surface showing.Notice: Refer to Fastener Notice in Cautions and Notices.
Install the retaining bolts and washers to the intake and exhaust camshaft sprockets.
Tighten the bolts to 70?Y (52?lb?ft) while holding the sprockets with the J 39579.
Install the J 36800 through the holes in the camshaft sprockets into the holes in the timing chain housing. This will position the camshaft for correct timing.
If the camshafts are out of position (you must rotate the camshaft more than 1/8?turn in order to install the alignment dowel pins), use the following procedure:
Rotate the crankshaft 90?degrees clockwise off of the TDC in order to give the valves adequate clearance to open.
Once the camshafts are in position and the dowels installed, rotate the crankshaft counter clockwise back to the top dead center.
Notice: Do not rotate the crankshaft clockwise to TDC. Valve or piston damage could occur. Important: The side of the timing chain that was marked during removal must be showing when the chain is installed.
Install the timing chain over the exhaust camshaft sprocket, around the coolant pump, and around the crankshaft sprocket.
Remove the alignment dowel pin from the intake camshaft.
Using the J 39579, rotate the intake camshaft sprocket counterclockwise enough in order to slide the timing chain over the intake camshaft sprocket.
Release the J 39579. The length of the chain between the 2?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.
The timing marks on the crankshaft and on the cylinder block should be aligned when the slack is removed from the chain linking the intake camshaft sprocket and the crankshaft sprocket. If the marks are not aligned, move the chain one tooth forward or rearward, remove the slack and re-examine the marks.
Important: Use the following steps in order to reset the timing chain tensioner assembly to the zero position.
Reset the timing chain tensioner assembly.
Insert the tensioner plunger assembly into the tensioner housing.
With the tensioner plunger fully extended, turn the complete assembly upside down on a bench or other flat surface.
With the plunger face against the workbench, press firmly on the bottom of the tensioner housing.
Compress the plunger until the plunger is seated flush in the tensioner.
Check the plunger to make sure the plunger is out of the cylinder at the correct dimension. The correct dimension for the plunger to extend out of the cylinder is 1.7?mm (0.07?in) maximum.
Loosely install the tensioner assembly and bolts to the timing chain housing.
Install the timing chain tensioner shoe on the stud.
Apply hand pressure to the timing chain tensioner shoe until the locking tab seats in the groove in the stud.
Tighten the timing chain tensioner bolts. Do Not overtighten. Tighten
Tighten the bolts to 10?Y (89?lb?in).
Important: If the timing chain tensioner is not released from the installation position, engine damage will occur when the engine is started.
Release the timing chain tensioner plunger.
Using a flat blade screwdriver, cotter pin remover, or similar tool, press firmly against the face of the timing chain tensioner plunger.
Important: If the timing chain tensioner cannot be depressed, the plunger is not properly reset and the procedure for resetting the timing chain tensioner should be repeated.
Depress the timing chain tensioner plunger until the plunger is bottomed out in the bore of the timing chain tensioner.
Release the tensioner plunger. the plunger should press firmly against the back of the timing chain tensioner shoe.
Rotate the crankshaft clockwise 2?full rotations. Align the crankshaft keyway with the mark on the cylinder block, and reinstall the alignment dowel pins. The pins should slide in easily if the engine is timed correctly.
Oct 28, 2014 - Uploaded by Deo Ole
How-To Replace The Serpentine Belt On A Chevy Tracker ...2001 Chevy Tracker V6 2.5L Head Instal and Timing Chain Instal - Duration: ... XL 7 2.7L Air conditioning compressor removal and smaller belt installed - Duration:
place no 1 piston at TDC compression stroke. There are procedures for the timing of the balance shafts but if it is only the timing chain I will go to that
Align uniquely coloured chain link with intake camshaft sprocket timing mark-- INT--. ( this will be pointing at the 2 o'clock position)
install timing chain and sprocket as an assembly
align first matching coloured chain link crankshaft timing mark (5 o'clock position)
align the second matching coloured chain link with exhaust cam shaft timing mark--EXH ( at the 11 o'clock position
There is a special procedure to reset the balance tensioner and it is different to the timing chain procedure.
To reset cam shaft timing chain tensioner push piston fully and turn clockwise until locked
Once the tensioner has been compressed ensure the distance from end to end is 2.83 inches . If not repeat the resetting process
vehicles 30.000 miles the tensioner is released when the engine is first started . In vehicles over 30.000 miles manually release tensioner by tapping the plunger
Note cam shaft and crank shaft sprockets bolts MUST only be used once. If you want details on the balancer chain procedure then make a comment in the box
use tension wrench and a degree gauge
cam bolts are tensioned to 63 ft lbs + 30 degrees
crank shaft pulley is tensioned to 74 ft lbs + 75 degrees
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I'm Ben and -- hopefully -- I can provide some meaningful assistance.
I'm not certain that I fully understand your problem. Therefore, I'm probably provide more information than you'll need.
A timing chain tensioner for your quest will cost $59-$75. The tensioner sits behind a small cover on the front of the engine. It;s difficult to reach but the replacement should take no more than 2 hours.
Move power steering and coolant/antifreeze resevoirs out of the way for access .
You may have to use a c-clamp to hold the guide and chain up out of the way.
The difficult part is installing the tensioner without pulling the plunger stopper pin.
The following link is a tutorial on how to replace the chain, guide and tensioner and covers everything in far more detail than I'm permitted here. CLICK HERE
The following video should be of some additional assistance.
Install balance shaft drive gear onto the left camshaft.
Install the camshaft sprockets and new bolts finger tight.
Using a vise, compress the timing chain tensioner plunger.
Install a retaining clip on the tensioner to hold plunger IN during installation.
marking timing chain
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.
Install right and left timing chain guides. Tighten bolts to 89 in-lbs (10 Nm).
Rotate the left camshaft until the timing mark is at the 12 o'clock position.
Rotate the right camshaft until the timing mark is at the 11 o'clock position.
Position the crankshaft using the special tool. Then remove the tool.
Crankshaft special tool positioning
Install the crankshaft sprocket with flange facing forward.
Crankshaft sprocket timing mark
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.
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
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
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
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.
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).
Remove the retaining clips from the right and left timing chain tensioners.
Verify alignment of all timing marks.
Install crankshaft sensor ring on crankshaft.
Locate index mark on balance shaft and mark corresponding gear tooth with chalk.
Position balance shaft on journals.
NOTE: It may be helpful to use an inspection mirror to view the marks timing marks.
Align the chalk mark on the balance shaft with the camshaft timing mark.
Balance shaft bearing caps
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).
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 additional90 degrees
Position the crankshaft keyway in the 11 o'clock position.
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
Camshaft sprocket timing alignment pins - J 36008 or equivalent
Camshaft sprocket wrench - J 39579 or equivalent
Fig. 1: View of the DOHC engine "timed position'' - 2.3L and 2.4L engines
Fig. 2: View of the SOHC engine "timed position'' - 2.3L engine
Remove the timing chain guides. There are usually three.
Raise and safely support the front of the vehicle.
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.
Remove the timing chain tensioner shoe retainer.
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.
If difficulty is encountered while removing chain tensioner shoe, proceed as follows:
Lower the vehicle.
Hold the intake camshaft sprocket with a camshaft sprocket wrench - J 39579 or equivalent holding tool and remove the sprocket bolt and washer.
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.
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.
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.
Matchmark the timing chain outer surface for reassembly purposes.
If equipped, remove the chain housing to block stud, which is actually the timing chain tensioner shoe pivot.
Remove the timing chain.
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.
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.
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
If the camshafts are out of position and must be rotated more than 1?8 turn in order to install the alignment dowel pins:
The crankshaft must be rotated 90°clockwise off of TDC in order to give the valves adequate clearance to open.
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.
For DOHC engines only, install the timing chain over the exhaust camshaft sprocket, around the idler sprocket and around the crankshaft sprocket.
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
Leave the alignment dowel pins installed.
Raise and safely support the vehicle.
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.
If equipped, tighten the chain housing to block stud. The stud is installed under the timing chain. Tighten to 19 ft. lbs. (26 Nm).
For vehicles through 1991, reload timing chain tensioner assembly to its "zero'' position as follows:
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.
Install tool J-36589 or equivalent, onto plunger assembly.
Install plunger assembly into tensioner body with the long end toward the crankshaft when installed.
For 1992-98 vehicles, reload timing chain tensioner assembly to its "zero'' position as follows:
Form a keeper from a piece of heavy gauge wire. See the accompanying figure.
Apply slight force on the tensioner blade to compress the plunger.
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.
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
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.
Install and tighten timing chain tensioner bolts. Tighten to 89 inch lbs. (10 Nm).
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.
Lower vehicle enough to reach and remove the alignment dowel pins.
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.
Install the timing chain guides and, if equipped, the crankshaft oil slinger.
Install the timing chain front cover. For details, please refer to the procedure located in this section.
Connect the negative battery cable, then start the engine and check for oil leaks.
There should be a small hole in the upper part of the timing belt tensioner housing and also on the end of the timing belt tensioner plunger, and the plunger must be compressed back into the tensioner housing until you can place a small allen wrench or something similar through the holes in the tensioner housing and the plunger to hold the plunger down and from putting tension on the timing belt until the timing belt has been installed.
Once you are sure that the timing belt is installed properly then you can pull out what you have holding the tensioner plunger and allow the timing belt to be tensioned.
If you are unsure of the procedure to compress the tensioner, or of the condition of the timing belt tensioner, then just replace the tensioner, it will come already compressed with a pin through it holding the plunger, and do not remove the holding pin until the timing belt is properly installed with all of the timing marks in their correct places.
ON EARLY MODELS BEND A PIECE OF HEAVY WIRE INTO U SHAPE APPLY LIGHT FORCE ON TENSIONER SHOE TO COMPRESS THE PLUNGER.INSERT A SMALL SCREW DRIVER INTO RESET ACCESS HOLE AND PRY THE RATCHET PAWL AWAY FROM THE RATCHET TEETH.THEN INSTALL THE LOCKING WIRE OR KEEPER INTO THE ACCESS HOLE AND SHOE.ON THE LATE MODELS IMSTALL TENSIONER UP SIDE DOWN AND COMPRESS THE TENSIONER PLUNGER ON A FLAT SURFACE UNTIL ALL THE OIL HAS BEEN PURGEDFROM THE TENSIONER AND PLUNGER LOCKS INTO PLACE OF TENSIONER BODY.
A year is not a good sign. The belt should not have come off in that span of time. I would make sure you do not have a worn out idler or tensioner pulley bearing before installing your new belt or reinstalling the original if it is not worn or damaged.
You will find one or two small pulleys involved with drive belt. One of the smaller pulleys will be an "idler" pulley and simply redirects the belt to a different accessory. The other small pulley is considered a "tensioner" pulley, it is spring loaded and keeps the correct tension on the accessory belt. The tensioner pulley will have a "squared" hole in the bracket or a bolt through the center of the pulley. In either case you will use a wrench to pry the tensioner pulley arm in the direction that loosens the belt. Once tension is relieved, pull the belt off a pulley and remove the belt. You will reverse the process to install the new belt. Good luck and let me know. Regards,