Date:         Thu, 1 Dec 2016 11:32:43 -0800
Reply-To:     Neil N <musomuso@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Neil N <musomuso@GMAIL.COM>
Subject:      Re: Over Torque Crank Bolt Damage Threads? Gas Jetta engine in
              Vanagon)
Comments: To: den jolliffe <sondancer77@yahoo.com>
In-Reply-To:  <141630497.4367389.1480605232540@mail.yahoo.com>
Content-Type: text/plain; charset=UTF-8

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

Blog: Vanagons, Westfalia, general <http://tubaneil.blogspot.ca>

1988 Westy Images <https://picasaweb.google.com/musomuso/New1988Westy>

1981 Westfalia "Jaco" Images, technical <http://tubaneil.googlepages.com/>

Vanagon-Bus VAG Gas Engine Swap Group <http://tinyurl.com/khalbay>