<VV> Stripped out helicoil

[Roger Gault]

I have three 5/8-11 setscrews that I had tapped for 3/8-18 installed in my
block.  My PO pulled at least 3 studs and went back in with 1.5D long (.562
long) helicoils - too short, so they pulled out later.  Probably smarter to
start with threaded rod.  Setscrews are HARD.

Roger

----- Original Message ----- 
From: <Grant43 at comcast.net>
To: <virtualvairs at corvair.org>
Sent: Monday, June 25, 2007 11:31 PM
Subject: <VV> Stripped out helicoil


> Hello again fellas:
>      Well, my head troubles have been narrowed down to three stripped head
stud casings and a broken lifter.  Evidently when the head bolts came loose
the valve train got sloppy enough to break the lifter.  Everything else
appears to be OK.  I finally got the 'turkey baster' off and can see that
two of the three stripped threads in the case have a helicoil already in
them.  So...  what do you do when the case has already been tapped out and
repaired and then pulls through again?  Is there an alternative type of
repair in this case, do you just use an over sized helicoil for round 2 or
do you just make the case a boat anchor?  Thanks again!
>
> Grant Richardson
>  _______________________________________________
> This message was sent by the VirtualVairs mailing list, all copyrights are
the property
> of the writer, please attribute properly. For help,
mailto:vv-help at corvair.org
> This list sponsored by the Corvair Society of America,
http://www.corvair.org/
> Post messages to: VirtualVairs at corvair.org
> Change your options:
http://www.vv.corvair.org/mailman/options/virtualvairs
>  _______________________________________________