[V8] Timing belt failure stories

[Paul Jager]

The belts themselves are very tough, usually the mechanical stuff causes the 
belt to fail, like a seized water pump or tensioner/idler pulley.

example: I bought a 1990 928S4 un-maintained by ultra-cheap Canadian owners. 
A young guy had bought it and the water pump was spent & leaking, way way 
overdue. He took it in to a shop and instructed to "replace only what was 
absolutely necessary to run".  He told them to put the old cam belt back 
in!! C'mon that is like a $30 item! When I got the car the belt was frayed 
and 3/4 there. One edge had been destroyed due to mis-track on the pump 
failure. It was nuts. So I finished the job and restored the car. Low miles 
it was really sweet just needed the 60K mile going over bumper to bumper and 
a major cleaning, new carpet mats.

Other belt failures I have heard - one of two bent valves to several bent 
valves. The two heads and 32 valves make for more expense. That is why they 
often catch fire or get junked.




-----Original Message----- 
From: toml99 at todomundo.com
Sent: Saturday, November 19, 2011 9:11 AM
To: v8audi
Subject: Re: [V8] Timing belt failure stories

Hey Tony, thanks for the reply....I was trying to convince someone
that leaving the 17yo timing belt parts in there in a mint 5-speed
was suicidal, but my guess is that it's already buttoned up.....Tom
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