Dennis, they are the fittings for the air rail. They go directly into the
exhaust port on the heads. If you are emissions exempt then you should plug
them.
James Nazarian
71 MGBGT V8
71 MGB Tourer
-----Original Message-----
From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net] On Behalf
Of BarrMark262@aol.com
Sent: Saturday, February 14, 2004 9:20 PM
To: mgs@autox.team.net
Subject: 4 threaded holes in block-what are they for?
Hi List: My 74B is running pretty well now thanks to all of you. However,
there are four threaded holes (7/16 by 20 pitch) located just above the
spark
plugs but below the top of the block.
When I shut the engine down, I see "wisps" of white smoke coming out of
these
holes.
Are there threaded plugs that should go in these openings?
I have tried to see if so from photos in my books, but cannot determine if
they are there or not.
Will one of you identify these openings and tell me what I should do about
them. My parts books do not identify.
Thanks
Dennis
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