My brother-in-law used heli-coils on the heads of his '64 corvette and
torqued it to 65ft-lbs with no problem. He swears by them, easy and
reliable to use.
David A. Templeton
mailto:davidt@opentext.com
74 Spitfire "Spit-Six" Comm #: FM10491U
using a '73 MkIII GT6 powerhouse
and suspension KF1951HE.
"The ultimate GT6 convertible :-) "
----- Original Message -----
From: Greg Ames <greg.ames.90@alum.dartmouth.org>
To: <spitfires@autox.team.net>
Sent: Wednesday, November 24, 1999 11:42 AM
Subject: Helicoil advice?
>
> I'm replacing my thermostat on my '72 MkIV. It turns out that the threads
> on the driver's side of the water pump housing are in pretty bad shape and
> won't hold the bolt (it pops out about 1/8th inch at around 17 ftlbs of
> torque). I guess my options are:
>
> - Drill out the threads and install a heli-coil thingy (never used them).
> - Replace the housing with one from the spare 74(?) 1500 engine I have.
> - Buy a used housing.
>
> I'm inclined to go the heli-coil route to avoid more problems removing
> additional rusty, 25+ yr old fasteners (plus I can get the car on the road
> sooner while the weather is still OK). Can anyone offer any advice on
> heli-coils? Is the repair as easy and permanent as it seems?
>
> Thanks,
> Greg Ames
> greg.ames.90@alum.dartmouth.org
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