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-   2.7T V6 Discussion (https://www.audiworld.com/forums/2-7t-v6-discussion-107/)
-   -   Did I just kill my valves? Same as in the allroad forum (https://www.audiworld.com/forums/2-7t-v6-discussion-107/did-i-just-kill-my-valves-same-allroad-forum-2940728/)

Roby466 01-11-2018 08:00 AM

Did I just kill my valves? Same as in the allroad forum
 
I just noticed there is this dedicated 2.7T forum.

15k miles ago I paid to have the timing belt done by a reputable shop on the West Coast... over Christmas the thermostat failed so I had very little heat.

Long story, skip to the last paragraph for the actual problem https://www.audiworld.com/forums/ima...lies/smile.gifSo I started the job again myself and got into a bit of a snag. When I removed the timing covers I found they had been wrongly installed and were worn through by the pulleys and sprockets. What I didn't notice is that bits fell and were channeled on the crank sprocket. When I then turned the crank to align the marks, the cams were slightly ahead of the crank, another turn made it worst, then third turn and I realised something was amiss. (I had not removed the old belt at that point). I checked and found that the bits were lodged in the teeth of the crank sprocket. I suppose that those bits were making the sprocket take more belt than it should and advancing the valve timing.

So the picture with a picture of the crank pulley shows how far in advance I went. That picture was taken with the bar in place so the cams are where they should but the crank is not.Question is, do you think I went far enough to have busted a valve?(or a few) I felt resistance but I was only using a 1/2in ratchet, no extension bar so it was hard to say if it was compression resistance or mechanical.Thanks for the help!


https://cimg9.ibsrv.net/gimg/www.aud...d57359851b.jpg
https://cimg0.ibsrv.net/gimg/www.aud...10ca337e08.jpgthe timing bar is in at that time. Big circle is where the pulley mark is and small oval where the timing mark on the cover is.
https://cimg2.ibsrv.net/gimg/www.aud...8e2098ed14.jpg

Roby466 01-11-2018 05:47 PM

well I should update!
I timed it right and did a compression check. 150 across the board!! that was without charging the battery and with a cold engine that hadn't run in a week so I guess I'm good to go!
Time to celebrate, I will put it back together tomorrow!
Cheers
David


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