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[Healeys] Thread size on pipe from oil pump by pass

Subject: [Healeys] Thread size on pipe from oil pump by pass
From: mayorrichard at hotmail.com (richard mayor)
Date: Mon, 16 May 2011 02:25:19 +0000
Listmates,
There is a pipe that screws into the bottom of the block on 6 cylinder
engines. It is the oil discharge pipe from the oil pump pressure relief valve.
At first impression it appears to be an American  1/4 x 18 pipe thread.
Although close, it is not.  Does anyone know what the thread pitch is on that
little pipe?  Is it some kind of British pipe thread?

Richard Mayor
BN7L-466  Vintage Racer
Portland, Oregon

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