<VV> Timesert removal
jamescuneo at hotmail.com
Wed Feb 10 15:05:19 EST 2021
Thank you Chuck.
It appears the problem was that they did not chamfer the hole, therefore the flange of the insert is not flush with the head.
Then it was overtightened, causing the flange to crack creating a poor gasket surface, as well as causing the sparkplug electrode to not extend into the combustion chamber.
Also, the length of the insert seems to short, creating a large void around the tip of the sparkplug.
From: Charles h. Sadek <chsadek at comcast.net>
Sent: Wednesday, February 10, 2021 11:48 AM
To: 'James Cuneo' <jamescuneo at hotmail.com>; virtualvairs at Corvair.org <virtualvairs at Corvair.org>
Subject: RE: <VV> Timesert removal
Jim, I have used both regular TimeSerts and Big Serts (acquired block with
bad head stud hole..) and Helicoils. Call TimeSerts, and order only what
you need. Pay attention to length for your thread length/hole depth. Take
your time and look at what you are doing. Do it by the book and it works!!
IF it looks like you need a bit of chamfer figure out how to do it.. To get
a failed one out, TimeSert will know how. I tend to think a left hand drill,
large easy out, temperature differential, etc.
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