Question about Volkswagen Passat

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06 Audi A4 2.0 Cam chain and tensioner broke, luckily valves are not bent, but vvt sprocket needs to be replaced. Car has only 111 k miles . Looking inside head at where intake manifold was removed there"s thick junk or should say sludge inside on the valve stems. Can I wash it off with degreaser and not do a valve job, or should I just clean it and re install as there is no damage to valves nor top of pistons. It looks like tensioner broke that caused the whole thing. Only damage is the tensioner , broken chain and vvt sproket. Any suggestions, thanks.

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Don't get degreaser inside the engine. Remove as much of the sludge by hand, or shopvac with a small nozzle. You can flush the engine with kerosine. Remove all residue through the drain plug.

Posted on Apr 23, 2014


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SOURCE: 2001 chrysler concord 2.7 liter timing set

I have a similar problem. I just replaced the water pump and now the POS wont start. Like it is not getting fuel>

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These valves are not adjustable, they are hydraulic design. If they are noisy then there is a problem with the followers.

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the easiest way to remove the head is to completely remove the exhaust manifold from the engine and turbo assy. you CAN just unbolt it from the engine , but it takes a good bit of wiggling to get it off if you are leaving thre manifold in the car

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SOURCE: 2004 aveo timing belt broke, all valves bent

just go to any junk yard and find a used deawoo lanos and pull the head if timing belt was not broke, if it looks good, its a exact fit 100%, no special tools needed, just normal wrench set and torqe wrench. after head is installed, get a gates timing belt only.

Posted on Dec 26, 2008

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SOURCE: Timing Chain Broke on CX-7 2007

The timing chain should of been changed at 30,000 or 60,000 miles it's in the owwners manual.

Posted on Aug 20, 2009

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Toyota 1.8 vvt noise problem in new timing chain and gears

Are you sure you tension correct the chain ? there is a possibility the tensioner not to tight enough the chain and remain loose and give that noise.( be careful not jump tooth out of timing.)

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Do a search on Youtube, many people load such videos there.

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Timming chain broke

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

Feb 02, 2014 | 2003 Saturn ION

1 Answer

The timing gear tensioner on my stype jaguar 2001 was replaced after the chain guides broke...a common failure for that year with plastic tensioners...would it not be a normal procedure to check or replace...

Failure to change your oil every 4,000 at most,
takes out VVT Actuators

When you do the guides you do the tensioners
Again no oil flow & gunked up

You can see the VVT on scan tool parameters & also
should mess with fuel trim data

If you change the upstream O2 Sensors at 100,000,
spark plugs every 3 years & clean the MAF you at least
have a clean start, with the exception of the cam & chain issues

Aug 31, 2013 | 2001 Jaguar S-Type

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Hello emissionwiz it looks that you know about this vehicle. I just purchased a Daewoo Lanos 2001. They advised me that the timing belt broke and that the tension pulley broke. I went to a u pull yard and...

if the timming belt broke when the engine was running most of the time the valves get bent and leak (head off repair) you could check this once you have replaced the belt before you start remove rocker cover and check for gaps between cam lobe and valve bucket when lobe is not pushing bucket down if there is a gap valve is bent.
these vehicles came out with a single cam or twin cam engine also so which one have you got?
valves bent on both engines when belt broke while running

on single cam engines you lock the tensioner with pin and loosen water pump and turn to obtain correct belt tension then release lock pin in tensioner and check that marks on tensioner align up if not turn water pump to get correct. some times this then causes the seal on the water pump to fail if its been there for some time because they corrode in block and its only a "O" ring so you might need a waterpump and "O" ring and coolant use grease on waterpump and "O" ring to make sealing and turning if needed eazier.

ifyou need any more info let me know even if twin cam can send pics also

Feb 15, 2011 | 2001 Daewoo Lanos

1 Answer

Aligning the valve timing mareks except twincam engine

Timing Chain, Sprockets, Front Cover and Seal REMOVAL AND INSTALLATION Crankshaft Damper and Front Oil Seal
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Remove or disconnect the following:
    • Negative battery cable
    • Accessory drive belt
    • Cooling fans
    • Crankshaft pulley and damper, using a holding fixture as shown
    • Front crankshaft seal Fig. 1: Crankshaft pulley removal tool - V8 9301jg12.gif
    To install:
  3. Install oil seal replacer tool JD-235 to the oil seal. Use the nut and bolt provided with the tool to fully seat the seal to the timing cover.
  4. For dampers which DO NOT utilize a spit locking ring:
    1. Apply a thin, even coating of Loctite® 648 to the damper bore. Do not apply it to the end faces or to the crankshaft.
    2. Install the crankshaft damper onto the crankshaft. Wipe off any Loctite that has squeezed out from the front of the damper.
    3. Install the locking tool to the damper. Tighten the bolt to 59 ft. lbs. (80 Nm), plus an 80 degree turn.
  5. For dampers which utilize a spit locking ring:
    1. Install a new O-ring seal to the damper.
    2. Install the crankshaft damper.
    3. Apply petroleum jelly to the damper bore and O-ring seal.
    4. Install the damper onto the crankshaft.
    5. Install the split locking ring onto the crankshaft, inside the center bore of the damper.
    6. Install the locking tool to the damper.
    7. Tighten the damper bolt to 266-285 ft. lbs. (364-386 Nm).
    8. Remove the locking tool from the damper.
  6. Install or connect the following:
    • Cooling fans
    • Accessory drive belt
    • Negative battery cable
  7. Start the engine and check for leaks.
Timing Cover
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Drain the cooling system.
  3. Remove or disconnect the following:
    • Negative battery cable
    • Upper radiator hose
    • Accessory drive belt
    • Water pump pulley
    • Accessory drive belt tensioner
    • Idler pulley
    • Crankshaft damper
    • Engine appearance covers
    • Mass Air Flow (MAF) meter
    • Air intake assembly
    • Ignition coils
    • Canister purge valve
    • Valve covers
    • Variable Valve Timing (VVT) solenoids
    • Engine harness retaining clips
    • Timing cover
    To install: Fig. 2: Sealant application points - V8 9301jg23.gif
    Fig. 3: Timing cover torque sequence-V8 9307jg01.gif

  4. Apply sealant to the 8 joints on the engine face as shown.
  5. Install or connect the following:
    • Timing cover with new seals. Tighten the bolts in sequence to 96-120 inch lbs. (11-13 Nm).
    • Engine harness retaining clips
    • VVT solenoids
    • Valve covers
    • Canister purge valve
    • Ignition coils
    • Air intake assembly
    • MAF meter
    • Engine appearance covers
    • Crankshaft damper
    • Idler pulley
    • Accessory drive belt tensioner
    • Water pump pulley
    • Accessory drive belt
    • Upper radiator hose
    • Negative battery cable
  6. Fill the cooling system.
  7. Start the engine and check for leaks.
Timing Chain 6 CYLINDER
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Remove or disconnect the following:
    • Negative battery cable
    • Accessory drive belt
    • Valve cover
    • Timing chain cover
    • Variable Valve Timing (VVT) sensor
    • Crankshaft Position (CKP) sensor
  3. Rotate the crankshaft until the triangular arrow indent on the driveplate is visible through the access hole.
  4. Install the Crankshaft Setting Peg JD 216 into the CKP sensor location.
  5. Install the Camshaft Locking tool JD 215 on the camshafts.
  6. Remove or disconnect the following:
    • Camshaft sprocket mounting bolt by loosening it
    • VVT mounting bolt by loosening it
    • Camshaft Locking tool JD 215
    • Primary timing chain tensioner and backing plate
    • Primary timing chain guide
    • VVT unit and exhaust camshaft sprocket
    • Secondary timing chain tensioner and guide
    NOTE: Keep all valvetrain components in order for assembly. To install:
  7. Prepare the timing chain tensioners for installation by using a paperclip or other wire to unseat the check valves and compressing the pistons into their bores.
  8. Install or connect the following:
    • Secondary timing chain guide. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
    • Secondary timing chain tensioner. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
    • VVT, secondary timing chain and exhaust cam sprocket
    • Primary timing chain
    • Primary timing chain guide. Tighten the bolt to 10-12 ft. lbs. (13-16 Nm).
    • Primary timing chain tensioner and backing plate. Tighten the bolts to 89-124 inch lbs. (10-14 Nm).
    • Primary timing chain slack, eliminate it by placing a wedge between the primary timing chain tensioner and the guide shoe
    • Secondary timing chain by applying counterclockwise force to the exhaust camshaft sprocket. Fig. 4: Apply force in a counterclockwise direction when tightening the sprocket mounting bolts - 6 cylinder 9301jg03.gif

    • Exhaust and intake VVT sprocket bolts. Tighten them to 85-92 ft. lbs. (115-125 Nm).
  9. Remove the tools and wedges.
  10. Install or connect the following:
    • CKP sensor
    • VVT sensor
    • Coolant outlet pipe
    • ECT sensor connector
    • Radiator and heater hoses
    • Timing chain cover
    • Valve cover
    • Accessory drive belt
    • Negative battery cable
  11. Fill the cooling system.
  12. Start the engine and check for leaks.
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Jan 28, 2011 | 1999 Jaguar XK8

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I need the time diagram of the chain sprockets' inside 2007 Audi Q7 4.2 FSI

The timing diagram of the chain sprockets inside 2007 Audi Q7 4.2 FSI


Dec 15, 2010 | 2007 Audi Q7 4.2 FSI

1 Answer

Should I replace the timing chain on my Saturn SL2 4 cylinder engine that has 145,000 miles on it? The car runs fine and the engine doesn't make any noise or vibrations.

at the dealer we rec them at 100k,,,,even if its not noisy or anything,it is a constant wear and tear item and the chain is no bigger or stronger than a bicycke chain,,,,they stretch and can break,and if the tensioner breaks or releases tension,its as bad as the chain breaking,either way the pistons will hit the valves and bend the valves,,,,also the timing chain guides are plastic and wear out,i would rec doing it,,,,but do the guides (2) front and rear and the chain,the tensioner,and lower crank sprocket and cam gears,,,,,if the car is in good shape and youre gonna keep it do it,,,if not,,,risk it and let it go,it may never break,,,but i would do it

Feb 26, 2010 | 2000 Saturn SL

2 Answers

Timing Chain Broke on CX-7 2007

The timing chain should of been changed at 30,000 or 60,000 miles it's in the owwners manual.

Aug 20, 2009 | 2007 Mazda CX-7 Grand Touring

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