Dick,
It's not uncommon, sorry to say. Helicoils are the way to go. It's a
metric thread, and i believe it's 8mm x 1mm. Might be worth investing in the
helicoil kit if you're doing more than two, otherwise any decent machine shop
can install them for you for about $20/hole.
Bud Krueger
52TD
Dick Dell wrote:
> Sad times.
>
> I have my TF somewhat apart to put in a new master cylinder and I saw that
> the lower bolts securing the bell housing to the engine/sump were missing.
> I acquired a few from Abingdon and when I went to put them in place found
> that the threads in the sump are no longer viable (read GONE).
>
> Do I need to pull the sump to have threaded inserts put in the holes? Can I
> use a helicoil (is one available for a Whitworth thread?)?
>
> Any and all suggestions and information are welcome.
>
> Dick Dell
> Raleigh NC
>
> MGTF
> Jensen-Healey
> TR3
> E-type
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