Question about 1998 Mitsubishi Galant

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Timing belt , ''eccentric tensioner bearing'' adjust on 98 magna v6

Tensioner bearing can either be adjusted manually clockwise( towards crank) or anticlockwise! Whats the correct method, prior to releasing hydraulic tensioner?
Cheers Wayne!

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I can tell you the whole procedure. If you would like it please contact me. It would take me awhile to explain the whole procedure on here.

Posted on Aug 01, 2009

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1 Answer

How do I position the camshaft timing marks on my volvo.s40.2003 model 2L?


Tension the timing belt
Note! This adjustment is to be
made with a cold engine.
Suitable temperature is
approximately 20°C/67°F. At
higher temperatures (with the
engine at operating temperature
or a high outside temperature for
example) the indicator is further
to the right.
The illustration shows the position of
the indicator at different engine
temperatures.

Carefully turn the
crankshaft clockwise
until the
timing
belt is
tensioned. The belt
must be tensioned
between the intake
camshaft pulley, the
idler pulley and the
crankshaft

Hold the belt tensioner
center screw secure.
Turn the belt tensioner
eccentric counter-
clockwise until the
tensioner indicator
passes the marked
position.
Then turn the
eccentric back so that
the indicator reaches
the marked position in
the center of the
window

Hold the eccentric
securely. Tighten the
center screw. Tighten
to
20 Nm
.Good luck

Feb 03, 2016 | Cars & Trucks

Tip

How to change a timing belt on a hyundai Elantra 1.5 , 1.6 and 2.0 engine


1.5L And 1.6L Engines
  1. Remove all necessary components for access to the timing belt cover, then remove the cover.
  2. Rotate the crankshaft clockwise and align the timing marks so No.1 piston will be at Top Dead Center (TDC) of the compression stroke.
  3. Loosen the tensioning bolt and the pivot bolt on the timing belttensioner. Move the tensioner as far as it will go toward the waterpump. Tighten the adjusting bolt.
  4. Mark the timing belt with an arrow showing direction of rotation if belt is to be reused.
  5. Remove the timing belt.
  6. If defective, remove the timing belt tensioner.

To install:


0900c1528019701f.jpgenlarge_icon.gifenlarge_tooltip.gifFig. Proper pulley alignment for timing belt installation at TDC-Hyundai 1.5L DOHC engines


0900c15280197020.jpgenlarge_icon.gifenlarge_tooltip.gifFig. Proper pulley alignment for timing belt installation at TDC-Hyundai 1.5L SOHC engines
  1. Align the timing marks of the camshaft sprocket and check that the crankshaft timing marks are still in alignment.
  2. If removed, install the timing belt tensioner, spring and spacer with the bottom end of the spring free. Tighten the adjusting bolts lightly with the tensioner moved as far as possible away from the water pump.
  3. Install the free end of the spring into the locating tang on the front case.
  4. Position the timing belt over the crankshaft sprocket, then over the camshaft sprocket. Slip the back of the belt over the tensioner wheel.
  5. Turn the camshaft sprocket in the opposite of its normal direction of rotation until the straight side of the belt is tight and be sure the timing marks align.
    NOTE If the timing marks are not properly aligned, shift the belt 1tooth at a time in the appropriate direction until they are aligned.
  6. Loosen the tensioner mounting bolts so the tensioner works,without the interference of any friction, under spring pressure. Be sure the belt follows the curve of the camshaft pulley so the teeth are engaged all the way around. Correct the path of the belt, if necessary.
  7. Tighten the tensioner adjusting bolt, then the tensioner pivot bolt to 15-18 ft. lbs. (20-26 Nm).
    NOTE Bolts must be tightened in the stated order or tension won't be correct.
  8. Turn the crankshaft 1 turn clockwise until timing marks again align to seat the belt.
  9. Loosen both tensioner attaching bolts and let the tensioner position itself under spring tension. Retighten the bolts.
  10. Check belt tension by putting a finger on the water pump side ofthe tensioner wheel and pull the belt toward the water pump. The belt should move toward the pump until the teeth are approximately 1 / 2 of the way across the head of the tensioner adjusting bolt. Re-tension the belt, if necessary.
  11. Install the timing belt covers and all other related components.
moz-screenshot.jpg6a4c46b.jpg8c77128.jpg74ba305.jpg

on Dec 01, 2009 | Hyundai Elantra Cars & Trucks

1 Answer

How do i set the timing belt on a 1997 cadillac catera?the betl did not break but how do i make sure the belt did not move a couple of teeth.


Hi, there should be marks on the belt itslf that align with hatch marks on the timing gears. Below are the instructions for installation. From these, you should be able to verify that the belt is in time. There are also some diagrams here: http://www.2carpros.com/diagrams/cadillac/catera/1997


To install:
  1. Install the timing belt.
    1. Start at the crankshaft pulley.
    2. Install the timing belt with a double dash (TDC) mark on the belt aligned with the marks on the oil pump and belt drive gear.
    3. Pinch the belt with special tool J 42069-30 to prevent the splines from jumping.

  2. Route the timing belt through the idler pulley for camshafts 3 & 4 then route the timing belt through the camshaft gears 3 & 4.
    1. Ensure the dash marks on the timing belt align with marks on the camshaft gears and the notches on the rear timing belt cover.
    2. If necessary, loosen timing belt idler pulley or move the cam gears slightly, with J 42069-1 and 2 still in place, until the timing belt can be installed.
    3. Tighten the idler pulley locking bolt until snug. The idler pulley bolt will be tightened to specifications after the final adjustments are made.




NOTE Timing belt deflection between the camshaft gears number 4 and the idler pulley for camshafts 3 & 4, must be no more than 0.4 inch (1 CM.).

  1. If necessary, adjust the timing belt deflection by turning the timing bolt idler pulley eccentric, for camshafts 3 & 4, counter-clockwise with the special tool J 42069-40, or equivalent.

  1. Route the timing belt through the timing belt idler pulley for camshafts 1 & 2 then route the timing belt through camshaft gears 1 & 2.
    1. Ensure the dash marks on the timing belt align with the marks on the camshaft gears and the notches on the rear timing belt cover.
    2. If necessary, loosen the timing belt idler pulley or move the cam gear slightly, with J 42069-1 and 2 still in place, until the timing belt can be installed.
    3. Apply sufficient tension to the timing belt to prevent it from slipping off the gears by turning the timing belt idler pulley eccentric for camshafts 1 & 2 counter-clockwise with special tool J 42069-40 or equivalent.
    4. Tighten the idler pulley locking bolt until snug. Idler pulley bolt will be tightened to specifications after final adjustments are made.

  2. Route the timing belt through the timing belt tensioner.
  3. Apply initial tension to the timing belt by turning tensioner eccentric counter-clockwise, with a 5 mm hex wrench, until marks are set.
    1. Tighten the belt tensioner-locking nut to 15 ft. lbs. (20 Nm).

  4. Adjust the timing belt.
    1. The timing belt must be properly adjusted or engine damage may occur. Do not continue with the engine assembly procedure until the timing belt is properly adjusted.

  5. Install the timing belt cover. Tighten the timing belt cover bolts to 71 inch lbs. (8 Nm).
  6. Install the power steering pump pulley and bolts. Install the water pump pulley and bolts.
    1. Tighten the power steering pump pulley bolts and the water pump pulley bolts after the serpentine drive belt is installed.

Mar 04, 2011 | 1997 Cadillac Catera

1 Answer

Timing Chain Replacement procedure steps


1. Jack up front of vehicle and support on safety stands. Remove left front wheel.
2. Remove alternator/water pump drive belt. Remove water pump pulley.
3. Remove A/C belt if equipped.
4. Remove valve cover.
5. Remove upper timing belt cover.
6. Rotate crankshaft until No. 1 cylinder is at TDC compression stroke and camshaft sprocket timing marks align with edge of cylinder head. "UP" cast on sprocket will be at top when sprocket is in correct position. Crankshaft may be rotated using a socket wrench inserted through access hole in left fender well (engine rotates counterclockwise).
7. Unbolt and remove crank pulley. Remove rubber seal washers from belt tensioner pivot and adjustment bolts protruding through lower belt cover. Remove belt cover retaining bolts and remove cover from below.
8. Remove concave belt retainer from end of crankshaft. If timing belt is to be reused, mark direction of rotation before removing.
9. Loosen belt tensioner pivot and adjustment bolts. Push tensioner away from belt and retighten adjustment bolt to hold tensioner in this position. Remove belt.
10. Insert a suitable tool through cam sprocket and brace against cylinder head. Remove bolt and pull sprocket from camshaft.
11. Without dislodging key, install new sprocket on camshaft. Torque bolt to 22 ftlb (30 Nm).
12. Install new timing belt by starting at crank gear and working it over cam sprocket in clockwise direction. Ensure that timing marks are properly aligned.
13. Release tensioner by loosening adjustment bolt. After tensioner contacts belt, retighten bolt.
14. Rotate engine at least one full turn (counterclockwise) and check that timing marks are aligned. Loosen adjustment bolt and allow tensioner to take out any remaining belt slack. Torque adjustment and pivot bolts to 22 ftlb (30 Nm).
15. Install remaining components in reverse order of removal. Torque fasteners to following values:

TORQUE VALUES

Valve Cover Nuts - 7 ftlb (10 Nm)
Cam Sprocket Bolt - 22 ftlb (30 Nm)
Tensioner Pivot Bolt - 22 ftlb (30 Nm)
Tensioner Adjust Bolt - 22 ftlb (30 Nm)
Belt Cover Bolts - 7 ftlb (10 Nm)
Crank Pulley Bolt - 83 ftlb (115 Nm)
Water Pump Pulley Bolts - 9 ftlb (12 Nm)

daves944_3.jpg

Dec 19, 2010 | 1983 Honda Accord

1 Answer

How to replace timing belt on a 1992 pontiac sunbird


1989–92 VEHICLES
  1. Disconnect the negative battery cable.
  2. Remove the serpentine belt and timing belt cover.
  3. Loosen the water pump bolts and release tension with tool J–33039 or equivalent.
  4. Raise and support the vehicle safely.
  5. Remove the crankshaft pulley.
  6. Carefully lower the vehicle, then remove the timing belt. Fig. 11: Exploded view of the timing belt assembly — 1989–92 OHC engines 87953118.gif
    To install:
  7. Turn the crankshaft and the camshaft gears clockwise to align the timing marks on the gears with the timing marks on the rear cover.
  8. Install the timing belt, making sure the portion between the camshaft gear and crankcase gear is in tension.
  9. Using tool J–33039 or equivalent, turn the water pump eccentric clockwise until the tensioner contacts the high torque stop. Tighten the water pump screws slightly.
  10. Turn the engine by the crankshaft gear bolt 720°to fully seat the belt into the gear teeth.
  11. Turn the water pump eccentric counterclockwise until the hole in the tensioner arm is aligned with the hole in the base.
  12. Tighten the water pump screws to 18 ft. lbs. (24 Nm), while checking that the tensioner holes remain as adjusted in the prior step.
  13. Install the crankshaft pulley, timing belt cover and the serpentine drive belt.
1993–94 VEHICLES
  1. Disconnect the negative battery cable, then partially drain and recover the cooling system.
  2. Remove the coolant recovery reservoir.
  3. If equipped, remove the A/C belt.
  4. Remove the serpentine belt.
  5. Disconnect the evaporative emission pipe assembly.
  6. Remove the crankshaft pulley assembly.
  7. As outlined earlier, remove the timing belt front cover.
  8. Align the marks on the crankshaft sprocket with the marks on the rear timing belt cover by rotating the crankshaft.
  9. Loosen the water pump retaining bolts, and release the tension with tool J 33039-A or equivalent.
  10. Carefully lower the vehicle, then remove the timing belt. Fig. 12: Timing belt installation and tightening specifications — 1993–94 2.0L OHC engines 87953119.gif
    To install:
  11. Turn the crankshaft and camshaft gears clockwise to align the timing marks on the gears with the timing marks on the rear cover.
  12. Install the timing belt, making sure that the portion between the camshaft gear and crankshaft gear is in tension.
  13. Using tool J 33039-A, or equivalent adjustment tool, turn the coolant pump eccentric clockwise until the tensioner arm contacts the high torque stop. Tighten the water pump screws slightly.
  14. Turn the engine by the crankshaft gear bolt 720°clockwise to fully seat the belt into the gear teeth.
  15. Turn the coolant pump eccentric counter clockwise until the hole in the tensioner arm is aligned with the hole in the base. This must be done with the engine at room temperature, approximately 68°F (20°C).
  16. Tighten the water pump screws while checking that the tensioner holes remain as adjusted as in step 15.
  17. As outlined earlier, install the timing belt cover.
  18. Install the crankshaft pulley.
  19. Connect the evaporative emission pipe assembly.
  20. Install the serpentine drive belt and the A/C belt (if equipped).
  21. Install the coolant recovery reservoir.
  22. Properly fill the cooling system, then connect the negative battery cable.
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Aug 11, 2010 | 1992 Pontiac Sunbird

1 Answer

Timing marks on a 2000 volvo v40 1.9t crank and cam marks


Timing belt alignment markings


9c6ff12.gif

Here is all the tech info for removing and replacing....hope this helps you:

4-Cylinder Engine
  1. Before servicing the vehicle, refer to the Precautions section.
  2. Remove or disconnect the following:
    • Negative battery cable
    • Right hand engine cover
    • Cover over the right headlamp
    • Accessory drive belt
    • Front timing cover
    • Servo reservoir
  3. Position Volvo lifting beam 999 5006 or equivalent slightly in front of the front lifting eyelet for the engine. Use Volvo lifting arm 999 5383 or equivalent and Volvo lifting hook 999 5460 or equivalent to raise the front of the engine a few millimeters.
  4. Remove or disconnect the following:
    • Right-hand engine mount
    • Right front wheel
  5. Turn the crankshaft until the markings on the crankshaft and camshaft pulley correspond. Turn the crankshaft a further 1/4 turn clockwise and then back again until the markings correspond. The markings are illustrated. Remove the upper timing cover.
  6. Slacken off the center screw for the belt tensioner slightly.
  7. Turn the tensioner clockwise to 10 o'clock.
  8. Remove or disconnect the following:
    • Air baffles
    • Lower belt cover
    • Timing belt


To install:
  1. Turn all the pulleys listening for bearing noise. Check to see that the contact surfaces are clean and smooth. If the tensioner pulley lever or idler is seized, replace it.
  2. If replacing with a new idler pulley, tighten to 18 ft. lbs. (24 Nm).
  3. If replacing tension pulley, screw into place using the center bolt by hand. Ensure that the tensioner fork is centered over the cylinder block rib. Ensure that the Allen hole on the eccentric is at "10 o'clock".
  4. Install the timing belt in the following order:
    1. Around the crankshaft sprocket
    2. Around the idler pulley
    3. Around the camshaft sprockets
    4. Around the water pump
    5. Onto the belt tensioner
  5. Carefully turn the crankshaft clockwise until the timing belt is tensioned. The belt must be tensioned between the intake camshaft pulley, the idler pulley and the crankshaft
  6. Hold the belt tensioner center screw secure. Turn the belt tensioner eccentric counter-clockwise until the tensioner indicator passes the marked position.
  7. Then turn the eccentric back so that the indicator reaches the marked position in the center of the window and tighten the center bolt to 15 ft. lbs. (20 Nm).
  8. Press the belt to check that the indicator on the tensioner moves easily.
  9. Install or connect the following:
    • Lower belt guard
    • Air baffles
    • Upper timing cover
  10. Turn the crankshaft two turns. Check that the markings on the crankshaft and camshaft pulley correspond.
NOTE Check that the indicator on the belt tensioner is within the marked area.

  1. Install or connect the following:
    • Lower timing cover
    • Front timing cover and tighten to 9 ft. lbs. (12 Nm)
    • Accessory drive belt
    • Engine mount and tighten to 49 ft. lbs. (67 Nm)
    • Servo reservoir. Tighten bolts to 37 ft. lbs. (50 Nm).
    • Front wheel
    • Right hand engine cover
    • Cover over the right headlamp
    • Negative battery cable

May 04, 2010 | 2000 Volvo V40

1 Answer

Changing the timing belt on a Hundai


  1. Remove all necessary components for access to the timing belt cover, then remove the cover.
  2. Rotate the crankshaft clockwise and align the timing marks so No. 1 piston will be at Top Dead Center (TDC) of the compression stroke.
  3. Loosen the tensioning bolt and the pivot bolt on the timing belt tensioner. Move the tensioner as far as it will go toward the water pump. Tighten the adjusting bolt.
  4. Mark the timing belt with an arrow showing direction of rotation.
  5. Remove the timing belt.
  6. If defective, remove the timing belt tensioner.
  7. Align the timing marks of the camshaft sprocket and check that the crankshaft timing marks are still in alignment.
  8. If removed, install the timing belt tensioner, spring and spacer with the bottom end of the spring free. Tighten the adjusting bolt slightly with the tensioner moved as far as possible away from the water pump.
  9. Install the free end of the spring into the locating tang on the front case.
  10. Position the timing belt over the crankshaft sprocket, then over the camshaft sprocket. Slip the back of the belt over the tensioner wheel.
  11. Turn the camshaft sprocket in the opposite of its normal direction of rotation until the straight side of the belt is tight and be sure the timing marks align.
    NOTE If the timing marks are not properly aligned, shift the belt 1 tooth at a time in the appropriate direction until they are aligned.
  12. Loosen the tensioner mounting bolts so the tensioner works, without the interference of any friction, under spring pressure. Be sure the belt follows the curve of the camshaft pulley so the teeth are engaged all the way around. Correct the path of the belt, if necessary.
  13. Tighten the tensioner adjusting bolt, then the tensioner pivot bolt to 15-18 ft. lbs. (20-26 Nm).
    NOTE Bolts must be tightened in the stated order or tension won't be correct.
  14. Turn the crankshaft 1 turn clockwise until timing marks again align to seat the belt.
  15. Loosen both tensioner attaching bolts and let the tensioner position itself under spring tension. Retighten the bolts.
  16. Check belt tension by putting a finger on the water pump side of the tensioner wheel and pull the belt toward the water pump. The belt should move toward the pump until the teeth are approximately 1 / 2 of the way across the head of the tensioner adjusting bolt. Re-tension the belt, if necessary.
  17. Install the timing belt covers and all other related components.

Feb 09, 2010 | Hyundai Motor 2004 Sonata

1 Answer

My timming belt slipped on my 93 sunbird. Where can i go for a free step by step repiar manual.


I Have Pictures But they must be Emailed as JPEG file
FixYa Does not have Un-Encription software so that I can Send Pics through FixYa.com . I can be reached @ aol.com with this screename. Be More than glad to send them to send em


SPECIAL TOOL REQUIRED (or equivalent)
  • J-33039-A, Cam drive belt tension adjustment wrench.
NOTE: O.E. manuals do NOT provide images of the timing marks, however, the alignment marks are located on the camshaft and crankshaft gears and the rear timing belt cover.

REMOVE OR DISCONNECT
  1. Battery ground cable, then partially drain cooling system.
  2. Coolant recovery reservoir.
  3. Serpentine, A/C and/or P/S drive belts(if equipped).
  4. Evaporative emission pipe assembly.
  5. Crankshaft pulley.
  6. Timing belt cover attaching bolts and the cover.
  7. Align marks on timing gears with the marks on the rear timing cover.
  8. Loosen water pump bolts, then using J-33039-A on the water pump eccentric, release the belt tension.
  9. Timing belt.
INSTALL OR CONNECT
  1. Turn crankshaft and camshaft gears clockwise to align timing marks on timing belt rear cover.
  2. Timing belt, making sure that the portion between the crankshaft and camshaft gears is in tension.
  3. Using J-33039-A rotate water pump eccentric clockwise until tensioner contacts high torque stop, then tighten water pump bolts slightly.
  4. Rotate the engine by the crankshaft gear bolt 720°clockwise to seat timing belt on sprockets.
  5. With engine at room temperature, rotate water pump eccentric with J-33039-A counterclockwise until hole in tensioner arm is inline with hole in base.
  6. Tighten water pump attaching bolts to 25 Nm (18 ft lbs) and ensure tensioner holes remain aligned.
  7. Timing belt cover and tighten bolts and nuts to 9 Nm (80 in lbs) .
  8. Crankshaft pulley, apply Loctite(R) 242 to bolt threads and tighten to 21 Nm (15 ft lbs) .
  9. Evaporative emission pipe assembly.
  10. Serpentine, A/C and/or P/S drive belts (if equipped).
  11. Coolant recovery reservoir and fill cooling system.
  12. Battery ground cable.

Mar 14, 2009 | 1993 Pontiac Sunbird

1 Answer

Timing specs for vw fox 1.8


Tune-up Specifications
Air/Fuel Ratio 0.7% Air/Fuel Ratio-Limits[1] 0.3 - 1.1% Timing[2] 6°+/- 1°BTDC Timing Advance[3] 30°+/- 3°BTDC Idle RPM[4] 800 +/- 50 [1] Check CO with the oxygen sensor connected. [2] AT 2300 RPM, and coolant temperature sensor disconnected. [3] Normal operating temperature, with coolant temp. sensor connected, at 2300 RPM. Add initial timing. [4] A/C off.
Timing mark is on flywheel, access hole is on top of bellhousing. Remove access plug with 27mm wrench if necessary
Firing Order is > 1342 Clockwise Rotation & #1 Plug Wire is at 2 Oclock on Distribitor Cap


Align the mark (can be a dot or notch) on the intermediate shaft sprocket with the notch in the crank pulley. Align the mark (can be a dot or notch) on the "Back" of camshaft sprocket with the top edge of the valve cover gasket. Be sure all the timing marks are properly aligned.

For further information refer to Timing Belt : Service and Repair
NOTE : The 8 valve engine requires a special wrench, Volkswagen No. US4493 or equivalent, to adjust the camshaft drive belt tensioner. Whenever the drive belt is removed and refitted, the camshaft and intermediate shaft timing MUST be adjusted. The drive belt can be replaced without removing the belt sprockets.
  1. Loosen alternator adjusting bolts and remove the fan belt.
  2. Remove the water pump pulley bolts and remove the pulley.
  3. Remove the upper timing cover bolts and remove the cover.
  4. Remove the timing belt guide, if equipped.
  5. Turn the engine by hand to set the No. 1 piston at Top Dead Center (TDC) and remove the crankshaft pulley.
  6. Remove bolt and nuts securing the lower timing cover and remove the cover. CAUTION: Turning the camshaft or crankshaft with the timing belt removed may cause damage to pistons and/or valves.
  7. Loosen timing belt tensioner locknut, release belt tension and remove belt from sprockets.
  8. Inspect belt for visible damage such as missing teeth or exposed threads. Inspect tensioner bearing for smooth running. Any damaged components should be replaced.
NOTE : On high mileage engines, failure of the tensioner bearing is a possibility. Consider replacing the bearing when replacing the timing belt.
  1. Align the mark (can be a dot or notch) on the intermediate shaft sprocket with the notch in the crank pulley. Align the mark (can be a dot or notch) on the "Back" of camshaft sprocket with the top edge of the valve cover gasket. Be sure all the timing marks are properly aligned.
  2. Temporarily install the crankshaft pulley to the crankshaft. Fit the timing belt starting with the crankshaft and intermediate shaft sprockets. Fit the belt so that it is as tight as possible between the crankshaft and the intermediate shaft sprockets and between the intermediate shaft and camshaft sprockets.
    1. Turn the belt tensioner clockwise to adjust the tension. The direction is important to avoid contact with the timing cover. Check the tension by twisting the belt as shown. You should be able to twist it no more than 90 degrees.
    2. Tighten the tensioner locknut to: 33 ft lbs (45 Nm)
    3. Rotate the crankshaft two revolutions and recheck the belt tension and the timing marks for proper alignment.
    NOTE: Very slight movement of sprockets and marks can be expected as belt tension is adjusted. Slight movement is OK. The smallest possible increment of adjustment is one whole tooth of the belt or sprocket.
    1. Remove the crankshaft pulley and refit the lower timing cover. Tighten the bolts to: 87 in lbs (10 Nm)
    2. Refit crankshaft pulley and tighten the bolts to: 15 ft lbs (20 Nm)
    3. Refit timing belt guide, if equipped.
    4. Refit upper timing cover and tighten bolt and nuts to: 87 in lbs (10 Nm)
    5. Refit water pump pulley and tighten the bolts to: 15 ft lbs (20 Nm)
    6. Refit fan belt and adjust tension. Tighten alternator adjusting bolts.

    Please Dont Forget To RATE ME !

Feb 09, 2009 | 1992 Volkswagen Fox

2 Answers

Alternator belt replacement for 93 volvo 940


Preparation

Caution! Remove the ignition key.

Remove
the screw holding the engine stabilizer brace to the bracket on the engine
the screws holding the engine stabilizer brace to the suspension turrets
the engine stabilizer brace.

Applies only to B6xx4T engines:
Remove the plastic pipes between the turbocharger (TC) and charge air cooler (CAC) and between the air cleaner (ACL) and turbocharger (TC). Put them to one side. Remove the clamp from the intake manifold for the turbocharger (TC) for cylinders 1, 2 and 3. Turn the upper section of the pipe towards the firewall.

Relieve the load from the belt tensioner.
Remove the auxiliaries belt. See: Drive Belt\Service and Repair
Remove the upper timing belt cover.
Remove the front timing belt cover.
Lift up the servo reservoir and place it on top of the engine.Note! Ensure that the oil does not leak from the ventilation hole in the filler cap.

Seal the hose between the expansion tank and the radiator.
Disconnect the hose at the tank.
Lift up the expansion tank and place it on top of engine.

Raise the car. Remove
the right front wheel
the plastic nuts on the cover in the fender liner. Install the upper timing belt cover.
Turn the crankshaft clockwise until the markings on the crankshaft and camshaft pulleys correspond.
Turn the crankshaft a further 1/4 turn clockwise. Then turn back counter-clockwise until the markings correspond.
Remove the upper timing belt cover.

Remove the 4 vibration damper screws. Counterhold the crankshaft central nut.

Remove
the vibration damper
the auxiliaries belt
the belt cover behind the crankshaft pulley for the auxiliaries belt. Spray universal oil or similar around the rubber sleeve on the underside of the oil pump.

Remove the rubber sleeve.

Removing the timing belt

Slacken off the belt tensioner
Slacken off the center screw for the belt tensioner slightly.
Hold the center screw still.
Turn the tensioner eccentric counter-clockwise using a 6 mm Allen key.
Turn to 10 o'clock.
Unhook and remove the timing belt.Caution! Do not turn the camshafts or the crankshaft when the timing belt has been removed.


Checking the tensioner pulley and idler pulley Check bearing wear:
Spin the idler pulley and listen for noise. If replacing with a new idler pulley, tighten to 24 Nm .
Spin the tension pulley and listen for noise. When replacing, screw the tension pulley into place using the center screw.
Screw in the center screw by hand.
Ensure that the tensioner fork is centered over the cylinder block rib / bracket.
Ensure that the Allen hole on the eccentric is at "10 o'clock".

Installing the timing belt

Install the belt in the following order:
crankshaft
the idler pulley
intake cam
exhaust cam
water pump
tension pulley.Note! The variable valve timing unit on B6304S engines does not have a return spring. The unit is easily dislodged when reinstalling the timing belt.


Tensioning the timing belt

This adjustment is carried out on a cold engine. A suitable temperature is approximately 20°C / 68°F .
At higher temperatures (with the engine at operating temperature or a high outside temperature for example) the indicator is further to the right.
The illustration shows the position of the indicator when aligning the timing belt tensioner at different temperatures.
Carefully turn the crankshaft clockwise until the timing belt is tensioned. The belt must be in tension between the intake camshaft pulley, the idler pulley and the crankshaft.
Hold the belt tensioner center screw secure. Turn the belt tensioner eccentric clockwise until the tensioner indicator passes the marked position. Then turn the eccentric back so that the indicator reaches the marked position in the center of the window.
Hold the eccentric secure. Tighten the center screw to 25 Nm .
Check that the indicator is in the correct position.

Check

Press the belt to check that the indicator on the tensioner moves easily.
Install the upper timing belt cover. Turn the crankshaft 2 turns. Check that the markings on the crankshaft and camshaft pulley correspond.
Check that the indicator on the belt tensioner is within the marked area.

Finishing

Install the auxiliaries belt around the pulley on the crankshaft.
Install
the rubber sleeve on the underside of the oil pump
the vibration damper.
Use new screws.
Tighten to 35 Nm .
Angle-tighten 50°.
Use the crankshaft center nut as a counterhold
the plastic nuts for the cover in the right-hand fender liner
the right front wheel.

Lower the car.
the front timing belt cover. Tension the auxiliaries belt.
the expansion tank
the hose between the expansion tank and the radiator. Remove the lock grip pliers
the servo reservoir
the upper timing belt cover.

Applies only to B6xx4T engines:
Twist the intake pipe for the turbocharger for cylinders 1, 2 and 3 into position.
Tighten the clamp.
Install the plastic hoses between the turbocharger (TC) and the charge air cooler and between the air cleaner (ACL) and the turbocharger (TC). Tighten the hose clamps.

the engine stabilizer brace. Tighten to 50 Nm
the screw holding the engine stabilizer brace to the bracket on the engine. Tighten to 80 Nm .

Final check
Check and top up if required
coolant level
the servo fluid level. Test drive the engine.

Don't forget to rate the solution

thanks
good luck

Oct 11, 2008 | 1993 Volvo 940

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