Oil line for gauge

[Jordan Baker]

Today I went down to the hydraulic fittings store for some help in finding something to fit the fitting on the back of the gauge. They told me the fitting on the original is a #4 sae. I ended up getting an adapter that goes from female #4 sae to female 1/8 pipe. Then a male 1/8 pipe to female 1/4 tube nut.

What have others used?

[rob love]

Compression fittings are normally used in that application.

[Lynn Eades]

You could use a JIC (?) nut and tail straight onto your gauge and use pushlock hose??? then you don't end up with that conglomeration hanging on the back of the gauge.

[Jordan Baker]

I found what I was looking for this morning at Home Hardware in their plumbing aisle.

I went with the long flare nut for the back of the gauge for better line support. The three way fitting will go on the block. That way I’ve got one line for the oil pressure gauge and the other will be for the filter.

[rob love]

I found a chev just outback that still has the line on it, although the engine has been removed.

Use the fitting you have in the photo, along with appropriate brake tubing. Flare the first end with that nut on it. From there the line goes around and up to the tp center of the cowl just beneath the channel under the windshield. At that point there is a regular brake line nut with flare and a union. On the other side, another flare and union. The line drops down the engine bay and is then cut on the example I have here.

We have a bunch more chevs at the compound, along with a few in the building. I'm afraid I can't post a photos on the computer right now as the government has issued me windows 10 and there is a compatibility problem with the camera right now. Hope to have that rectified tomorrow.

The line appears to be 1/4 steel brake tubing, but I'll get the digital calipers onto it tomorrow.

[Paul Dutton]

Originally Posted by Jordan Baker

I found what I was looking for this morning at Home Hardware in their plumbing aisle.

I went with the long flare nut for the back of the gauge for better line support. The three way fitting will go on the block. That way I’ve got one line for the oil pressure gauge and the other will be for the filter.

As a hydraulics engineer, that is the correct way to do this, not with the other ‘Christmas tree ‘ fittings from your hydraulic store! I’m surprised you found them in your hardware store, I’m impressed!,