<VV> was Steele Gaskets - now raising the lid

Mark Durham 62vair at gmail.com
Mon Jun 25 22:11:08 EDT 2012

JR, raising the lid will have no effect of valve seat issues. There is
sufficient mass in the head to compensate for the faster cooldown.
However it will help cool the carbs for a faster start after the fuel
In reality, the only reason seats come out is that they are installed
incorrectly. People will argue about this but it comes down to simple
physics. If you get the correct tight fit, they do not come out. At
times it is the installer using a poor technique to remove or install a
seat that creates the problem .older heads may have out of round seat
areas that allow a seat to come loose. And the normal operation of the
engine should not affect a seat. Clear up to red line temps. Mark Durham

Sent from my Windows Phone
From: J R Read
Sent: 6/25/2012 17:25
To: Byron Comp; virtualvairs at corvair.org
Subject: <VV> was Steele Gaskets - now raising the lid
Ya See, now this one bothers me a bit.  Do we have evidence that a faster
cool down is better than a slower cool down?  Or, is it more a heat sink
problem which in effect raises the engine temp after it is shut down?

Isn't the dropped seat phenomenon at least somewhat related to the number of
heat - cool cycles?  And wouldn't "faster" cooling lead to a greater number
of and somewhat more pronounced cycles?

I have no answers on this, but perhaps there is someone on VV who can help
to enlighten me and others - with some hard evidence regarding the better
way to go.

Later, JR

----- Original Message -----
From: "Byron Comp" <byron.comp at yahoo.com>
To: <virtualvairs at corvair.org>
Sent: Monday, June 25, 2012 1:38 PM
Subject: Re: <VV> Steele Gaskets

Hi Jeff,

 I'm following the practice of opening the deck lid every time I shut her
down, regardless of what the last drive was like in terms of duration,
speed, or difficulty. (There are some rather steep hills in the area of PA
where we now live.)

Byron Comp
'64 Monza Vert
Williamsport, PA

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