RE: O2 threads

["J. T. Spilman" <jtstexas@home.com>]

Very timely. I stripped my O2 bung on the header and had to get a tap. The
salesman at the Bolt store took one look at the O2 sensor and said that is a
NPT 3/8" pipe thread.(He says this is a standard pipe plumbing thread.) I
bought the tap and screwed the O2 sensor in after chasing the threads in the
header with the tap. Works great.

regards
J.T. Spilman

-----Original Message-----
From: owner-gmecm@diy-efi.org [mailto:owner-gmecm@diy-efi.org]On Behalf
Of Roger Heflin
Sent: Tuesday, August 15, 2000 3:40 PM
To: gmecm@diy-efi.org
Subject: Re: O2 threads




On Tue, 15 Aug 2000, Bruce Plecan wrote:

> GM O2 sensor, what size are the threads?.
> 14mm is too small, 16 or 18?.
> Bruce
> Got 4 irons in the fire, two of which are about hot.

18x1.5 same size as a large thread spark plug.

I happen to have a helicoil kit in just that size, because I stripped
one of mine.

			Roger

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