Consider using timsert's instead of helicoils. www.timesert.com
Can helicoils be used in an open hole? After putting in the timesert, take
it to you machine shop and have them balance it. Hope you haven't done it
already.
Mike
> Kevin,
>
> They are "5/16-18 X 7/8. The original GM part number was 1164332 (part
> number courtesy of David Kernberger). I recently purchased and
successfully
> used a set of Mr. Gasket pressure plate bolts on my Buick 215. The Mr.
> Gasket part number was #911.
>
> I'm not sure what to suggest as a method of repairing the now damaged hole
> in your flywheel. Probably you will need to put in a 'Helicoil'. The
> problem is that I am not sure how that will effect the overall balance of
> the flywheel.
>
> Regards,
> Jim
> Bown@concentric.net
>
>
> -----Original Message-----
> From: owner-mgb-v8@autox.team.net [mailto:owner-mgb-v8@autox.team.net] On
> Behalf Of Kevin & Deana Brown
> Sent: Wednesday, November 15, 2000 6:53 PM
> To: MGV8 list
> Subject: Buick Flywheel Pressure Plate Bolt Size?
>
>
> Does anyone know the the thread pitch of the bolts used to clamp the
> pressure plate to a stock Buick flywheel? They appear to be 5/16 x 24
> but I'm not totally sure that they are not 5/16 x 18. I chased one with
> a 5/16 x 24 tap and more material came out than I thought should though
> this flywheel has been sitting around for a while and had a little
> surface rust on it. Thanks.
>
> Kevin Brown
>
>
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