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Quote:
Originally Posted by AndrewGJones
errr.................................How exactly does the timing belt cause the retaining bolt to come loose to create this wear. :confused:
Perhaps if it 'resonated' in common as muck C major all would be good. ;)
The reason the full 'belt kit' includes a new gear, tensioner and idler plus retaining bolts is because it is an upgrade from the original design. :) These parts are different to the original.
Deano :)
It causes it the same way it will wear out the new ones in time; by being fundamentally a bad idea. the physics of shaking bolts loose is not something even I could pretend to know (and I quite liked the Pretenders, always played songs in happy keys..).,The how is not probably as important as the why;and that 'why' is because it was holding a lacky band in place that really should not be in there to start with if they had not been so worried about getting there arse kicked by accountants and salesmen (this is too noisy and expensive -put a rubber band in it will ya?).Quote:
Originally Posted by DeanoH
it took me a little while, but I finally got the metaphor for what I'm saying;
"the fact that is was the bullet killed the bloke doesn't excuse the smoking gun'
If we had been talking face to face then I would have said something like "what you are saying is like a..um....<insert hour long pause here>...yeah, it's like blaming the bullet not the gun" :)
Gentlemen, its all fixed and good. A new belt kit plus replacement boss, bolt and locating pin for the camshaft sprocket. Job done. purrs like a happy erm,.....cat. For those who dont like the lacky band thingy, there was a replacement gear kit available in the UK for about 1,100 quid sterling. All sorts of claims for improved power and efficiency - and not much more noise.
My other car, the going-to-town limo, is a W124 Mercedes 300D: straight 6 naturally aspirated diesel with single overhead cam, double roller chain driven, hydraulic lifters - Bewdiful! and quiet, with over 500,000 ks on the clock.
The Zeuss timing gear kits were bad.Quote:
Originally Posted by LR1953
Very few who fitted them didn't end up regretting the decision.
The timing belt is OK if done when it's due.
Absolutely nothing wrong with the Tdi using a cambelt, if fitted corrctly and all fasteners correctly torqued and the belt changed at the right interval FOR THE CONDITIONS then they are no worse than any other camshaft drive IMO.
At least when / if they fail they generally only bend a few straight things, a gear set or chain will do far more damage if failure occurs.
I disagree about the belt design being the cause in this case. I have replaced many hundreds of tdi belts I would estimate, and the only instance where I have seen a bolt come adrift and cause problems was one that wasn't tightened correctly in the first place....
JC