Replacing valve cover gasket, timing belt
11-05-2002, 09:03 AM
#11
That's the part I didn't understand - why the cam sprockets need to be loosened..
once the belt is removed from the tensioner, it can be slowly removed from the rest of the gears, starting with the passenger side sprocket, then under the waterpump, then driver's side sprocket then driving crank shaft sprocket.
The liquid paper marks provide a reference point, and if the sprocket rotates slightly, it will be off a tooth or so anyway, it's pretty easy to tell. So far no problems.
I guess I like to cut down on time when I can. I don't think the Audi is unique is the hundreds of belts I've done. The only thing they don't provide is timing alignment marks other than using the special tool - or if I open the valve covers as there are some in there.
The liquid paper marks provide a reference point, and if the sprocket rotates slightly, it will be off a tooth or so anyway, it's pretty easy to tell. So far no problems.
I guess I like to cut down on time when I can. I don't think the Audi is unique is the hundreds of belts I've done. The only thing they don't provide is timing alignment marks other than using the special tool - or if I open the valve covers as there are some in there.
11-05-2002, 10:00 AM
#12
You can't use the sprockets for timing reference, as they are not keyed. They can go anywhere.....
on the end of the cams, which is why the end of the cam has that diamond thing on the ends. You loosen the cams, so they can turn and line up with the new belt exactly, if you dont, there is the possiblity that you could be off half a tooth or more.
Again, not saying your way is wrong, or bad.
Again, not saying your way is wrong, or bad.
11-05-2002, 10:38 AM
#15
Gives me an idea though - if the sprockets do move a small amount relative to the cam...
that means it's a built in cam sprocket adjustment for fine tuning and performance - no need to buy those after market adjustable sprockets 
Hmmm future mod.
I'll need to fabricate a reference plate for use on a dyno tuning since on the 12V, those two cam bolts are relatively easy to get to.
Hmmm future mod. I'll need to fabricate a reference plate for use on a dyno tuning since on the 12V, those two cam bolts are relatively easy to get to.
11-05-2002, 11:17 AM
#17
I looked at Bentley just now and it looks like my steering wheel puller. I'll find out later this
year, as I plan to swap my 7 year old (gulp) belt before I do any track events early next year.
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