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oil line fitting size

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liquidsteel
Posts: 13
Joined: Sat Sep 05, 2015 7:30 pm

oil line fitting size

Post by liquidsteel » Wed Sep 04, 2019 4:24 pm

oil fitting 1.jpg
Hello, Does anyone happen to know what size this fitting is? The reason I am asking is I am trying to attach an oil pressure test gauge and 1/4 npt and also 1/4 flare doesnt fit along with compression. Its the oil line tee off of an M series block. Thanks in advance
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jim g
Posts: 993
Joined: Wed Dec 14, 2011 10:55 pm

Re: oil line fitting size

Post by jim g » Wed Sep 04, 2019 10:58 pm

You will need an original nut. Everything Chris Craft used was odd size and threads compared to anything available today. Once you have an extra nut. Any 1/4 compression ferrule and some 1/4 inch tubing will work. On the other end get the brass fittings from the hardware store that will let you adapt your gauge to the tube.

Jim Staib at Fine Wood Boats might have extras to sell.

liquidsteel
Posts: 13
Joined: Sat Sep 05, 2015 7:30 pm

Re: oil line fitting size

Post by liquidsteel » Fri Sep 06, 2019 6:34 am

Thank you for the reply. It is greatly appreciated

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