<VV> Solvent Test for Heads

[J R Read_HML]

Joe,

I do it the same as you.  I figure that if it is going to leak, the test is
valid in either direction.

Attachments are scanned with anti-virus software.

Later, JR
----- Original Message ----- 
From: "N. Joseph Potts" <pottsf@msn.com>
To: "Corvair List" <virtualvairs@skiblack.com>
Sent: Monday, April 12, 2004 8:38 AM
Subject: <VV> Solvent Test for Heads


> Have I been doing my "solvent tests" wrong? I set the head with the
> combustion chambers pointing up and fill them with liquid (kerosene, but
> water would do fine).
>      Then I watch for liquid coming out of either the exhaust ports or the
> carburetor opening(s - mine is a 140), or both.
>      By hand, I cleaned up and lapped one head to be liquid tight, while
the
> other head, which had been three-angle ground, I left alone after it
failed
> the liquid test. Today, after months of service, the "hand-made" head
shows
> noticeably higher compression than the professionally done head. Both are
in
> an acceptable range, and not TOO different from each other. Engine runs
> well.
>
> Joe Potts
> Miami, Florida USA
> 1966 Corsa coupe 140hp 4-speed with A/C
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