<VV> Headless pictures

[Charlie Danner]

                       Mike,
                                   I've used that method in the past, but 
when the hole is too big ( a large insert blown out ); I use a tapered 
aluminum  ( or steel ) pipe plug with 14mm threads tapped in the center. The 
various pipe tap sizes will let you fix as large a hole as the combustion 
chamber will stand and the threads are smaller as you go deeper into the 
head. I started this process on air cooled VW's and did most without 
removing the head.I haven't had a failure. The tapered threads allow some 
serious torque to the insert! On a larger insert; the sparkplug threads can 
be sunk to maintain the Corvair length threads.
                     Charlie Danner
                      cdanner at comcast.net
http://photobucket.com/albums/v385/CMD/


----- Original Message ----- 
From: "Michael Kovacs" <kovacsmj at sbcglobal.net>
To: "Byron Comp" <byron.comp at yahoo.com>
Cc: "VV" <virtualvairs at corvair.org>; <fastvair at yahoogroups.com>
Sent: Friday, March 25, 2011 2:44 PM
Subject: Re: <VV> Headless pictures


>I had one just as bad. The machine ship fixed it this way.
>
> drilled out all the messed up threads
> found a threaded bolt that would fit the hole.
> tapped the hole to fit the bolt.
> drilled and tapped the bolt to fit the Corvair spark plug.
> cut the head off the bolt.
> installed the now perfect bushing.
> pinned the bushing.
>
> MIKE KOVACS
>
>
>
> -
>
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