Re: Head Stud and Nut Torqueing`

[Bob Hadden <kbhadden@xxxxxxxxxxx>]

John,  Yes.  It is a known issue that the studs pull out of the block 
if over torqued.  Some would say they pull out under normal servicing 
(but this is the internet, so you have to put a grain of salt on 
everything you read).  I know people helicoil them for the repair, but 
don't know the details.  Tom can probably provide that info.

Bob Hadden - '05R12GS, '62R27

On Apr 6, 2006, at 6:47 AM, jmerlinw wrote:

> Tom and Bob:
>
> <snip>
> Is it possible that over-torquing the head nuts would have stripped the
> aluminum threads in the case? I have considered helicoiling all the 
> stud
> holes, but am stymied: two of the four studs have locating collars 
> around
> them which are smaller ID than the helicoil OD. <Snip>
> John Merlin Williams
> 1999 R1100RS
> 1999 Ducati SS750
> Ann Arbor, MI

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