Thanks Denny.

No! I never re-use TTY bolts.   ;)

A more experienced person would've stopped reefing on the bolt in
question before I did. It happened at the end of a long wrenching
day..... I could NOT believe that my new never before used torque
wrench could behave in such a manner.

The sprocket (timing belt pulley) appeared fine as did key way in
crank snout. There were no related issues prior.

Neil.

On 12/1/16, den jolliffe <sondancer77@yahoo.com> wrote:
> I had a similar issue on a 1.8 gas engine years ago, and a TD...the bolt on
> both altho torqued correctly would sheer after a while...
> In both cases it was the timing belt pulley that had worn on the crank end
> allowing movement that sheered the bolt...the gas one was a simple
> replacement that never failed again...the TD needed a slight mod to the end
> of the crank to fit the TDI pulley, it never failed again either...
> Just my $.02...and NEVER re-use TTY bolts, EVER...they are single use
> stretch bolts...new ones are good insurance against future failures that
> could cost you an engine...
> Denny in TO

--
Neil n

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