The Sharp manual only says a 7/16" stud - doesn't give a specific
length. It just says to drill and tap the jackshaft back to the oil hole
in the first journal.
Thomas Walter wrote:
> Lee,
>
> Have a machine shop replace the bolt, with a stud.
>
> You need the jacksahft threaded back to the oil passage hole,
> the stud should thread in to that location BUT NOT BLOCK THE
> OIL HOLE.
>
> In my mind I seem to recall a 7/16" x 3" stud. Not sure if
> that is correct.
>
> This "fix" was provided by a Bob Sharp Tech Tip when he was
> racing the U20's. It is a rare failure to see the nose of the
> jackshaft snap off, but when it does occur it seems most often
> on engines that are rev'd to 8,000 rpm. I've only heard of
> two "street" 2000's that have snapped the jackshaft.
>
> Hopefully someone who has done this more recently will speak
> up about the stud size.
>
> Cheers,
>
> Tom Walter
> Austin, TX
--
Gordon Glasgow
Renton, WA
http://www.gordon-glasgow.org
|