RE: [ihc] head gasket advice?

["John M. Adams" <jma@xxxxxxxxxxx>]

> -----Original Message-----
> From: owner-ihc@domain.elided [mailto:owner-ihc@domain.elided]On Behalf Of
> John Hofstetter
> Sent: Tuesday, April 27, 2004 7:10 PM
> To: spamaddy@domain.elided
> Cc: ihc@domain.elided
> Subject: Re: [ihc] head gasket advice?
>

> Sealing the rear of the valley plate is the hardest seal to make leak
> proof. Valve covers should be flattened before putting them on.

What is meant by flattening? Are you actually lapping the valve cover? Like
on a large sheet of abrasive paper over thick glass on a flat bench? Or
something else? I've never attempted this, always relied on the sealant to
compensate for any irregularities. Thanks, ~John A.
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