I may have missed this in an earlier message, but did you reuse your old bolts or new ones? These bolts are meant for one time use only. If you reuse and follow the original tightening procedure, the bolt will either break or pull out. Z --- Felder <felder@KNOLOGY.NET> wrote: > I've posted this to a diesel list, too, but since > some of you have > offered advice about my #1 head stud popping block > threads I thought > I'd pass along what I know. And a question, too. > > I got several emails saying that what I probably did > is left oil down > in the bolt hole and pressure-blocked the head stud, > hence the pulled > threads. I checked and that is not the case at all, > there is no oil in > the hole. > > Secondly, I checked that the thickness of the block > FROM THE BED OF THE > HEAD WASHER to the the block mating surface was the > same as my old > head. It is. > > Third, I noticed that the last two thread turns of > my removed head stud > are full of iron from the block, so I assume that it > was only grabbing > 2 threads when it popped. > > How long is the threaded part of the stud supposed > to be? Mine measures > 113 mm. > > How many threads does a "normal" torqued head bolt > require? Might one > insert a shorter washer to reach a few more threads, > or would a stud > longer than a normal bold do the trick? Studs might > be a problem with > the engine in the car because of the angle. > > Thanks, > > Jim
__________________________________ Do you Yahoo!? The New Yahoo! Shopping - with improved product search http://shopping.yahoo.com |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.