HELP ! Doing timing belt - can't find crank-locking hole...
Thread Starter
AudiWorld Member
Joined: Jul 2005
Posts: 597
Likes: 66
From: Alabama (formerly Michigan)
HELP ! Doing timing belt - can't find crank-locking hole...
Hello Everyone. Well I'm in elbow-deep doing the timing belt on my 01 A8L. I have the engine at TDC but am unable to locate the crank locking pin hole. I have looked everywhere around the driver's side motor mount. There is a hole just forward of the mount, but it does not appear to have a plug or go through the block to the crank. It is about 5/8 inch diameter and about 3/4 inch deep. Do I need to remove the driver's side motor mount to see the crank locking hole?
Thread Starter
AudiWorld Member
Joined: Jul 2005
Posts: 597
Likes: 66
From: Alabama (formerly Michigan)
Re: HELP ! Doing timing belt - can't find crank-locking hole...
I searched and found the pic from A8CT. I will run back into the Garage and see if I can find this hole...back in a second....
Trending Topics
Thread Starter
AudiWorld Member
Joined: Jul 2005
Posts: 597
Likes: 66
From: Alabama (formerly Michigan)
I FOUND IT GUYS - BUT NOW A NEW PROBLEM...!?!?
I did find the crank locking location, it is to the rear of the driver's side motor mount, in a very very difficult location. I had to remove the left front tire, and the level-sensing lever/linkage and then could just barely get to it with difficulty and cursing. The crank is now locked in place, and I have the cam sprockets off, as well as the old belt. So far so good.
PROBLEM: The tensioner appears to be a hydraulic cylinder. When I went to compress the tensioner using the bearing & bracket, I couldn't budge it. I'm thinking that the tensioner has already bled-down since the car has been sitting for 2 days in near zero temps. I did notice that upon very cold startup, for the last few weeks, I could hear a muffled rattle for about 1 or 2 seconds - then it quit. Could this have been the tensioner getting oil pressure and quieting things down? And if so....is this normal our should the cylinder hold pressure for a certain length of time without the engine running?
Thank You Everyone for coming to my rescue. This forum is terrific!
PROBLEM: The tensioner appears to be a hydraulic cylinder. When I went to compress the tensioner using the bearing & bracket, I couldn't budge it. I'm thinking that the tensioner has already bled-down since the car has been sitting for 2 days in near zero temps. I did notice that upon very cold startup, for the last few weeks, I could hear a muffled rattle for about 1 or 2 seconds - then it quit. Could this have been the tensioner getting oil pressure and quieting things down? And if so....is this normal our should the cylinder hold pressure for a certain length of time without the engine running?
Thank You Everyone for coming to my rescue. This forum is terrific!
AudiWorld Stories
Bringing Audi to Life for Audi Fans
10 Strangest Audi Designs That Actually Made Production
Joe Kucinski
2027 Audi Q7 and SQ7: Audi Upgraded EVERYTHING!
Michael S. Palmer
Audi Unveils Absurdly Cool New Supercar: 10 Things You Need to Know!
Verdad Gallardo
The Highs & Lows of Every Audi C-Class Generation
Joe Kucinski
Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer
Brett Foote
10 Audi Features & Options We Miss the Most!
Joe Kucinski
Audi Recreates Crazy-Looking Speed Record Breaker From 1935
Verdad Gallardo
Coachbuilder Recreates the 1995 Audi TTS Concept
Verdad Gallardo
Every Audi V10 Car Ranked!
Joe Kucinski
Banned
Joined: Oct 2000
Posts: 950
Likes: 1
Belt tensioner is spring loaded but damped against retraction by its own oil. So keep pressure on it
If we're talking about the timing belt tensioner on a 4.2 5V, it has no connection to engine oil pressure. (Cold start rattles are probably lifters before the oil pressure comes up.) It extends freely but retracts only slowly. So put some pressure on it, and don't let go. It should retract slowly, very slowly. Pushing harder won't help much, just makes you tired sooner.
Disregard this if you're talking about some other tensioner.
You really took off the right front tire to get at the crank locking plug?
Tom
Disregard this if you're talking about some other tensioner.
You really took off the right front tire to get at the crank locking plug?
Tom