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General => The garage => Topic started by: Ben Lessani on 23 August 2011, 11:13
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Hi Guys,
Not a Golf, but a similar enough engine. I've been asked to replace a snapped timing belt on my step dads Audi 80. The crank, cam and aux pulley are all out of sync. The cam sprocket has a timing mark OT (that has a corresponding timing mark on the inner cover), however, I can't see any timing marks on the aux or crank pulley. The engine is mounted transversely and is an automatic - so I've got no idea how to check the flywheel for TDC.
Would I be right in thinking, that I can set the timing by getting cyl. 1 to TDC and the cam sprocket to line up with the OT marking? Then how on earth do I line up the aux pulley? I removed the dizzy cap, rotor arm and plastic washer in the hope of seeing a marking for cyl. 1, but there is nothing there. As crude as it sounds, the only way I can think to set this up, is to approximate where the rotor arm strikes cyl. 1
I'm a little lost as to how to set up the timing, so I would definitely appreciate some guidance.
The real pain with this car, is that the radiator blocks all access to the pulleys - but has to be mounted as the automatic transmission's oil cooler is built into the rad. So, I don't want to be continually removing/adding the radiator to adjust the belt position.
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try this:
http://www.autodata-online.com/uk/timingbelt.asp (http://www.autodata-online.com/uk/timingbelt.asp)
James
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That costs money?
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you get what you pay for, and its only ~£15 from memory.
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Its the same as the golf mk2 gti 8v engine.
Line up the OT mark on the cam sprocket with the OT arrow on the back cover, there is a cut out on the crank pulley that lines up with a notch on intermediate sprocket.
I will try and get a pic up if you bear with me for the next day or so :smiley:
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What year is the car Ben, and what transmission code?
I don't seem to have anything on ELSA, only autodata.
Let me know, and i'll see what else i can find out :smiley:
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Thanks buddy.
Whilst I know the Golf inside out, I've never actually changed a timing belt without having marked one up before removal. So setting static timing from scratch is new to me!
1994 - Lxxx xxx, not sure about the tranny code.
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I've got some pics for you, but they are off an audi 100 4 cylinder with digifant MPI.
However from what i can gather all 4 cylinder 8v engines have the same setup at that age, well this is what ELSA is saying.
Proceed with caution.
Camshaft TDC.
(http://i59.photobucket.com/albums/g306/golfvr/timing2.png)
Crankshaft TDC with lower cover fitted.
(http://i59.photobucket.com/albums/g306/golfvr/timing1.png)
Crankshaft TDC lined up with Intermediate shaft sprocket with lower cover removed.
(http://i59.photobucket.com/albums/g306/golfvr/timing3.png)
Engine set to TDC with distrubutor cap removed.
(http://i59.photobucket.com/albums/g306/golfvr/timing4.png)
Like i said don't take it as gospel, but this should be setup on the car.
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Looks easy enough, I'll go out and try to spot the markings tonight.
Muchas gracias
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No problem, let me know how you get on :smiley:
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All sorted now, lined up as you said. Test started it and it ran perfect.
The *only* thing that concerns me is that the tensioner seems to be 'loose'. There is 1 stud which is pivots on, that even when tightened up - the tensioner (brand new) has movement on, is this normal?
On the Golf IIRC, the pivot stud is also what secures the tensioner, but on the Audi, there is a sprung mechanism that secures the tension - but the marginal play is still alarming, I've never come across this before.
Not mine, but the tensioner arrangement is the same.
(http://i126.photobucket.com/albums/p89/adolftitler/Photo0014.jpg)
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How much play exactly?
There is likely to be marginal play, its a thermal type tensioner i believe.
Does the belt stay at the correct tension as you turn the engine over by hand?