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| D3 - Engine Bay Everything under the bonnet |
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#1
8th November 2014, 10:58 AM
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Timing belt question....weird
Maybe some one can help
We just did a timing kit on my d3 4.2 petrol (water pump,tensioner,belt) the lot After test drive timing belt lost its tension,tensioner was all the way down We moved the engine using spanner and tension came back to normal We checked the tensioner and all seems fine Why belt lost its tension? We put the timing tool on as well and timing wasn't off at all Any ideas? Last edited by Borys; 8th November 2014 at 12:05 PM. 
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#2
8th November 2014, 11:38 AM
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Was the damper changed as well? My D2 experienced similar symptoms with old damper and another D2 I know off even jumped belt couple of teeth because damper was not changed.
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Currently 8less 2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D 8 history: 2006 A8 Sport 4.2TDI quattro SOLD, 1997 S8, reached end of life with gearbox failure
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#4
8th November 2014, 12:20 PM
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I was changing my timing belt on my d2 4.2 this morning until i had the wrong belt supplied to me.
I noticed also that you can manipulate the belt to become dangerously slack in one part. Cant speak for the new belt until i get the correct one. How much is one from TPS or dealer? (just the belt)
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#5
8th November 2014, 04:45 PM
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So it is a timing chain tensioner failed on bank 2
When engine switched off oil pressure drops, tensioner is sagging causing cams to twist backward and as a result timing belt looses it tension Boom this car is a nightmare!!!!!!!!!!!!!!!! Don't think will buy an audi again
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