Farmall H oil pressure headache

23afdahlbo · Sep 5, 2020

Hello, I have been working on a 1946 Farmall H for which I bought a new oil pressure gauge from steiner. (Part # IHS452). I found that it needed an adapter so I ordered a 1/8th to 1/4th adapter seeing that it
was in the description. (Part # ABC2353). When that didn't fit I tried the other adapter that was in the description of the gauge which is 1/8th to 1/8th, which also didn't fit, because of the little bit of
line that protrudes past the original compression fitting. (Adapter was part # ABC538). Does anyone have any suggestions?

Thank you in advance.

used red MN · Sep 5, 2020

23af welcome to YT! From what I can see that gauge in combination with the adapter you ordered should work. Unless they sent you the wrong fitting. The way I see it you need a 1/8” female NTP to female1/4” compression style tubing fitting.

23afdahlbo · Sep 5, 2020

I can't get it to fit over it, it seems like both the gauge and the line are 1/8th . I know the original gauge was a female and the new one is a male. Here are some pictures. I was thinking to maybe cut the extra part of the line off with a hacksaw but I was leary of getting any metal shavings in there. The second photo I have attached is of how far I can get the fitting on.

Mike(NEOhio) · Sep 5, 2020

That looks like somebody put a compression ferrule on what should be a flared line. What does the inside of that adapter look like?

23afdahlbo · Sep 5, 2020

Not sure if you can see it but it is beveled the opposite way.

rustred · Sep 5, 2020

that is the wrong fitting on the gauge.

miangus · Sep 5, 2020

That sure looks like 1/4 inch line but the compression ring looks too far back from the end. Could you trim the line beyond the ring. That type of fitting seals on that brass ring.

Janicholson · Sep 5, 2020

The threads on the line are rounded and will ruin the female threads when screwed in. A new compatible fitting ans shorten the line as little as possible. Jim

used red MN · Sep 5, 2020

That fitting adapts it to a female to accept flared tubing, you need a female compression. Go to your favorite hardware store and get exactly what I posted. The threads don’t look to good on the nut on your tube. I hope you can get it to seal.

TimWafer · Sep 6, 2020

(quoted from post at 09:20:13 09/06/20) That fitting adapts it to a female to accept flared tubing, you need a female compression. Go to your favorite hardware store and get exactly what I posted. The threads don t look to good on the nut on your tube. I hope you can get it to seal.

UsedRed is there truly such a thing as a inverted compression fitting that would accept that nut? I have worked in a major hardware store for over 40 years and maybe once or twice in that time have I had someone looking for such an animal. Ive yet to find a fitting such as that and have always assumed they had an inverted flare nut and stuck a compression ring on it by mistake. The fitting he has on the gauge is an inverted flare fitting. I cant imagine walking into a local hardware store and finding a fitting that would accept that tube as it appears now. I would cut both the ring and nut off and replace it with a standard compression adapter that has female pipe threads to match his gauge. As you say the nut he has looks bad anyways.

used red MN · Sep 6, 2020

Tim, I guess I didn’t realize I was sending him after a
needle in a hay stack. It is correct that someone has
put a full double sided compression sleeve on the line
which is not a 100 percent correct. I suppose you are
familiar with the original style fitting that IH used it
was sort of a hybrid compression style where the
ferrel is part of the nut. I don’t know if it was designed
to separate from the nut when tighten but often does. YT has an adapter that would fix his issue, see link. Steiner has one also which I didn’t see when I looked on the Steiner site the first time; it shows the two parts separate. You will have to google Steiner IHS626 to see it. All that said I agree cut the line and get a common 1/4” tube compression fitting to female 1/8” NTP and be done. Sorry to the OP if I caused you delay.
YT Gauge adapter

Farmall H oil pressure headache

23afdahlbo

New User

used red MN

Well-known Member

23afdahlbo

New User

Mike(NEOhio)

Well-known Member

23afdahlbo

New User

rustred

Well-known Member

miangus

Well-known Member

Janicholson

Well-known Member

used red MN

Well-known Member

TimWafer

Member

used red MN

Well-known Member

Similar threads