Help! why is my timing belt suddenly off a tooth?...
Thread Starter
AudiWorld Member
Joined: Aug 2006
Posts: 261
Likes: 1
Help! why is my timing belt suddenly off a tooth?...
So I am getting a CEL for incorrect correlation between the crank sensor and the cam sensor so I replaced the sensor cleared the code but still getting the CEL.
I checked the timing markers and they are off by at least 1 tooth, how did that happen?
I changed the belt over 2 years and almost 30K miles ago with no problems until about a month ago. What could possibly cause the belt to jump a tooth? and would it be ok to just move it a notch without taking everything apart?
thanks
I checked the timing markers and they are off by at least 1 tooth, how did that happen?
I changed the belt over 2 years and almost 30K miles ago with no problems until about a month ago. What could possibly cause the belt to jump a tooth? and would it be ok to just move it a notch without taking everything apart?
thanks
AudiWorld Senior Member
Joined: Jul 2006
Posts: 1,952
Likes: 0
How are you checking the timing? The mark on the cam only lines up every other revolution.
Belts do skip. It's rare but not impossible. When you did the belt I assume you did the tensioner and water pump also?
Belts do skip. It's rare but not impossible. When you did the belt I assume you did the tensioner and water pump also?
Thread Starter
AudiWorld Member
Joined: Aug 2006
Posts: 261
Likes: 1
I am looking at the markers on the can gear and on the balancer on the crank and they are about 1 tooth off.
Yes, I replaced everything, tensioner, waterpump, idler pulley, thermostat etc.
I am just having a hard time understanding how it can physically skip.
I thought about just compressing the tensioner and moving the cam gear to where it should be but the more I think about it, maybe I should just do the whole job over again
Yes, I replaced everything, tensioner, waterpump, idler pulley, thermostat etc.
I am just having a hard time understanding how it can physically skip.
I thought about just compressing the tensioner and moving the cam gear to where it should be but the more I think about it, maybe I should just do the whole job over again
AudiWorld Senior Member
Joined: Jul 2006
Posts: 1,952
Likes: 0
I don't think you'll move the tensioner far enough to get enough slack to turn the camshaft. If you can then the belt is likely stretched. They are a really tight fit even with the tensioner fully compressed.
If it was me and I was sure that the timing belt had skipped I would first off offer my first born up for sacrifice because it only skipped one tooth and didn't write off the entire top end of the engine. I would then purchase a new timing belt and install it.
If it was me and I was sure that the timing belt had skipped I would first off offer my first born up for sacrifice because it only skipped one tooth and didn't write off the entire top end of the engine. I would then purchase a new timing belt and install it.
Thread
Thread Starter
Forum
Replies
Last Post
cotawiah
A4 (B6 Platform) Discussion
3
Jul 11, 2011 09:23 AM
No20valveNocare
Audi Original "S" Cars
19
May 10, 2009 05:50 PM
mj42jackson
A4 (B5 Platform) Discussion
4
Sep 22, 2003 01:30 PM
