[DeTomaso] Stripped Heli coils in Fontana Block

[Julian Kift]

I have had good success (non-head application) with Timesert another brand of solid insert, the kits come with everything required to drill and tap the oversize hole for the solid insert to thread into. You do need to have enough material to drill the oversize hole and they only thread

http://www.timesert.com/

Julian
________________________________
From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf of Will Kooiman <will.kooiman at gmail.com>
Sent: Saturday, January 30, 2021 10:52 AM
To: Steven Edwards <gsedwards at cox.net>
Cc: detomaso at server.detomasolist.com <detomaso at server.detomasolist.com>
Subject: Re: [DeTomaso] Stripped Heli coils in Fontana Block

I had a similar issue in some aluminum heads several years ago.  I talked to an engine builder that was supplying parts to me.  He turned me on to Rockmount solid inserts.  They work like helicoils, but they are solid - not a spring.

This was 3/8ths though, and not as critical as head studs.  You drill slightly larger than what’s required by helicoils.  The insert cuts the threads. There are different brands of solid inserts, and I’m sure you can get them in several sizes - maybe even custom.

My point is it is fixable, but talk to the pros.  If possible, have them do the repairs.

Sent from my iPhone

> On Jan 30, 2021, at 9:53 AM, Steven Edwards <gsedwards at cox.net> wrote:
>
>    Need ideas as to how to repair, if I can, stripped Helicoils in an
>   aluminum block.
>
>   I have two 1/2' main studs that did not torque in a Fontana block.
>
>   I pulled the studs to find that the Helicoils were being pulled up, and
>   stripping the aluminum threads.
>
>   Can I repair these Helicoil threads? Any ideas?
>
>   I Googled it several times, and all that comes up is how to install the
>   Helicoils in aluminum. Not how to repair the Helicoil threads.
>
>   Thanks
>
>
>   Steven Edwards
> _______________________________________________
>
>
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-------------- next part --------------
   I have had good success (non-head application) with Timesert another
   brand of solid insert, the kits come with everything required to drill
   and tap the oversize hole for the solid insert to thread into. You do
   need to have enough material to drill the oversize hole and they only
   thread

   [1]http://www.timesert.com/

   Julian
     __________________________________________________________________

   From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf of
   Will Kooiman <will.kooiman at gmail.com>
   Sent: Saturday, January 30, 2021 10:52 AM
   To: Steven Edwards <gsedwards at cox.net>
   Cc: detomaso at server.detomasolist.com <detomaso at server.detomasolist.com>
   Subject: Re: [DeTomaso] Stripped Heli coils in Fontana Block

   I had a similar issue in some aluminum heads several years ago.  I
   talked to an engine builder that was supplying parts to me.  He turned
   me on to Rockmount solid inserts.  They work like helicoils, but they
   are solid - not a spring.
   This was 3/8ths though, and not as critical as head studs.  You drill
   slightly larger than what's required by helicoils.  The insert cuts the
   threads. There are different brands of solid inserts, and I'm sure you
   can get them in several sizes - maybe even custom.
   My point is it is fixable, but talk to the pros.  If possible, have
   them do the repairs.
   Sent from my iPhone
   > On Jan 30, 2021, at 9:53 AM, Steven Edwards <gsedwards at cox.net>
   wrote:
   >
   >    Need ideas as to how to repair, if I can, stripped Helicoils in an
   >   aluminum block.
   >
   >   I have two 1/2' main studs that did not torque in a Fontana block.
   >
   >   I pulled the studs to find that the Helicoils were being pulled up,
   and
   >   stripping the aluminum threads.
   >
   >   Can I repair these Helicoil threads? Any ideas?
   >
   >   I Googled it several times, and all that comes up is how to install
   the
   >   Helicoils in aluminum. Not how to repair the Helicoil threads.
   >
   >   Thanks
   >
   >
   >   Steven Edwards
   > _______________________________________________
   >
   >
   > Detomaso Email List is not managed by POCA
   > Posted emails must not exceed 1.5 Megabytes
   > DeTomaso mailing list
   > DeTomaso at server.detomasolist.com
   > [2]http://server.detomasolist.com/mailman/listinfo/detomaso
   >
   > To manage your subscription (change email address, unsubscribe, etc.)
   use the links above.
   >
   > Members who post to this list grant license to the list to forward
   any message posted here to all past, current, or future members of the
   list. They also grant the list owner permission to maintain an archive
   or approve the archiving of list messages.
   _______________________________________________
   Detomaso Email List is not managed by POCA
   Posted emails must not exceed 1.5 Megabytes
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   DeTomaso at server.detomasolist.com
   [3]http://server.detomasolist.com/mailman/listinfo/detomaso
   To manage your subscription (change email address, unsubscribe, etc.)
   use the links above.
   Members who post to this list grant license to the list to forward any
   message posted here to all past, current, or future members of the
   list. They also grant the list owner permission to maintain an archive
   or approve the archiving of list messages.

References

   1. http://www.timesert.com/
   2. http://server.detomasolist.com/mailman/listinfo/detomaso
   3. http://server.detomasolist.com/mailman/listinfo/detomaso