Oil Pressure Gauge Fitting '68 to '73
#3
Melting Slicks
We weren't ignoring ya. Just no one who had one apart saw your thread. It's tough to get to, and the old axiom If it ain't leakin', don't touch it was also working against you.
It should be a 90 degree fitting because the Gauge Panel butts up very close to the Firewall. It therefore eliminates a sharp bent of the nylon Oil Line.
Steve
#4
Safety Car
Thread Starter
Thanks for the info. I bought the fitting to experiment with, hoping there was something available to adapt it to a -3 AN fitting which could be used with a braided stainless oil line. It's the same diameter as 1/16th pipe thread, but the pitch is wrong.
I was bored and it was cold out, so I whittled one off in my lathe. Took many hours, so this will be the first and last.
I was bored and it was cold out, so I whittled one off in my lathe. Took many hours, so this will be the first and last.
#5
Le Mans Master
Member Since: Mar 2001
Location: Watkinsville, GA and Glen Cove, NY
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The braided line I am using is 4an. I found an adapter on Amazon that works but it wasn’t easy to find. Will look for it if you are interested. Not aware of a braided oil gauge line that is 3an.
#6
Safety Car
Thread Starter
Hmmmm...I had no trouble finding -3 AN line. They are usually described as brake line, but will work with oil pressure gauges as well.
https://www.speedwaymotors.com/Braid...sku=91031845-3
https://www.summitracing.com/int/par...0308/overview/
https://www.speedwaymotors.com/Braid...sku=91031845-3
https://www.summitracing.com/int/par...0308/overview/
#8
Le Mans Master
I just replaced my 40+ year old nylon line with -4 braided line. The fittings in the block and the gauge are 1/8NPT. I used 1/8 NPT to -4 90* fittings.
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Primoz (09-29-2021)
#9
Melting Slicks
#10
Le Mans Master
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My 69 gauge was definitely not 1/8 NPT but 5/16-24. None of the adapters in the Autometer kit fit. Hard to find the 5/16-24 to -4 adapter but I did find one. I will post a pic as my gauges are out of the car.
Last edited by 69ttop502; 11-10-2017 at 03:02 PM.
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carriljc (12-07-2018)
#12
Safety Car
Thread Starter
Everything I know about this fitting:
It is 5/16-24...it is not tapered.
This is a 5/16-24 bolt with 2 nuts on it. Below that is the fitting with the same nuts.
This is a 1/8" pipe fitting, compared to the gauge fitting. It is much larger.
This is the tube fitting on the 5/16-24 bolt. It fits on the gauge fitting.
It is 5/16-24...it is not tapered.
This is a 5/16-24 bolt with 2 nuts on it. Below that is the fitting with the same nuts.
This is a 1/8" pipe fitting, compared to the gauge fitting. It is much larger.
This is the tube fitting on the 5/16-24 bolt. It fits on the gauge fitting.
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carriljc (12-07-2018)
#16
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