Hi Scott
Yes you should probably have the shop lick it over again (for peace of
mind), you'd kick yourself if it did cause a problem. And yes the fire is
held in by the Fire ring, the steel ring etc. My thought is it's much easier
to get it sorted now than after you have built the engine up.
Graham.
----- Original Message -----
From: <ScottBarr8@aol.com>
To: <spitfires@autox.team.net>
Sent: Sunday, February 20, 2000 2:53 AM
Subject: Doh!!
>
> OK, so I did a stupid thing. All set to build up the short block on my
> original GT6 motor this morning. I've been running my spare motor for a
year
> or so while I collected the bits to put the original back together. The
> triple Weber manifolds were the last and most difficult item to obtain and
> they've now arrived.
>
> So the block, all line bored and centered, has been sitting for a year or
so
> and had accumulated a light flash of rust. I tossed it up on the bench to
> clean it up with a small grinder. Thought the bench was clean, but it
turns
> out there was a small bit of metal there somewhere. When I flipped the
block
> over again, there was a fine scratch across the head-gasket surface.
> Straight across No. 4 cylinder -- no intersection with any water passages.
> But all the way across the surface, right from edge to edge. It's maybe
4-6
> thou. deep, not a big gash, but you can certainly feel it with a
fingernail.
>
> Damn.
>
> My gut says, "take it back to the machine shop and have the surface
touched
> up. It's worth doing right." My cheap nature says "Don't sweat it.
It'll
> be fine."
>
> Thoughts anyone? Is the combustion pressure held in primarily by the
steel
> ring inserted in the head gasket at the top of each cylinder, or do we
rely
> on the head gasket itself to keep the fire on the inside?
>
> Scott
> ScottBarr8@aol.com
>
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