70s Sun oil pressure guage question

Lyn Smith · 05-15-2019, 05:30 PM

Got a friend who is trying to adapt a AN fitting to his 1970s vintage Sun oil pressure guage.He says it has a weird thread on it.Anyone know what thread this is,and where he can get a adapter? thanks

e vassar · 05-15-2019, 06:28 PM

Does it have a copper line? If so it could be pipe thread,if not probably compression fitting.

Kenney Kelley · 05-15-2019, 06:36 PM

You might try a Jegs part # 361-968704 1/8 " npt. Female to 4an it might work and it might not. Kenney Kelley

Rich Biebel · 05-15-2019, 07:12 PM

Old oil pressure gauges used either plastic line or copper with a ferule and had a tapered seat on the gauge. The fitting/threaded part on the gauge was not removable if I recall right. No way to adapt to AN fitting from what I recall. The lines were 1/8 inch.

FED 387 · 05-15-2019, 07:54 PM

flare is 45* automotive and not the 37* which is AN--- R Biebel is right you might have to get a "custom" made hydraulic hose or fitting to make it work---you won't have stainless braided but you will have a new hose-----dont forget if you go with a new copper line remember to coil it a few times to allow for engine movement and vibration--FED 387

05-15-2019, 05:30 PM	#1
Lyn Smith VIP Member Join Date: Dec 2001 Location: Pontiac,il. Posts: 1,192 Likes: 272 Liked 950 Times in 189 Posts	70s Sun oil pressure guage question Got a friend who is trying to adapt a AN fitting to his 1970s vintage Sun oil pressure guage.He says it has a weird thread on it.Anyone know what thread this is,and where he can get a adapter? thanks

05-15-2019, 06:28 PM	#2
e vassar Member Join Date: Jul 2015 Posts: 376 Likes: 64 Liked 262 Times in 104 Posts	Re: 70s Sun oil pressure guage question Does it have a copper line? If so it could be pipe thread,if not probably compression fitting.

05-15-2019, 06:36 PM	#3
Kenney Kelley Member Join Date: Dec 2006 Location: Cocoa Florida Posts: 205 Likes: 177 Liked 72 Times in 36 Posts	Re: 70s Sun oil pressure guage question You might try a Jegs part # 361-968704 1/8 " npt. Female to 4an it might work and it might not. Kenney Kelley

05-15-2019, 07:12 PM	#4
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,314 Likes: 25 Liked 544 Times in 213 Posts	Re: 70s Sun oil pressure guage question Old oil pressure gauges used either plastic line or copper with a ferule and had a tapered seat on the gauge. The fitting/threaded part on the gauge was not removable if I recall right. No way to adapt to AN fitting from what I recall. The lines were 1/8 inch. __________________ Rich Biebel S/C 1479 Stock 147R

05-15-2019, 07:54 PM	#5
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,409 Likes: 504 Liked 328 Times in 176 Posts	Re: 70s Sun oil pressure guage question flare is 45* automotive and not the 37* which is AN--- R Biebel is right you might have to get a "custom" made hydraulic hose or fitting to make it work---you won't have stainless braided but you will have a new hose-----dont forget if you go with a new copper line remember to coil it a few times to allow for engine movement and vibration--FED 387