The Stovebolt Site Forums The Shop Area Engine Shop Oil pressure line from the engine to the dash

Hi all...I need one...any suggestions...Thank You

OIl Gauge Pressure Lines?

Tim

Tim, did Chev not use a piece of flex in the line like GMC used. I have had some Chevs for parts vehicles but I never examined them that close and they are now long gone.

crenwelge,

No rubber flex line. Just two brass fittings and a copper line.

Tim

would aluminum tube be ok? older plumbing suppy/hdwr stores carry both by the foot, and the ftgs. in fact, lowes/depot etc carry it, and the ftgs, but in pre-packaged lengths

My AD uses a steel line.

My '37 had a 1/8" brass line on it. I would think copper or aluminum would be to soft. Be sure to add a loop or two for flex.


Joe

Hardware store copper is for water or AC. I would recommend going to an auto supply. Either loop it or consider a short piece of flexible tubing like GMC of the same era used.

flex? why for flex? the heat causing expansion/contraction?

right, copper for h2o/ac, those are my fields, but i've never heard of a copper alloy for oil, aside from a no copper use with cooking oil, bec it will react with the oil

The copper lines or ac are a harder alloy. A line running from the engine will have to flex because an engine moves. In a vehicle these days, it will probably be fine, but when trucks were trucks it was a problem because they were driven a lot of miles. Even into the 60's trucks used soft copper for air as well as oil lines. A softer copper alloy lasted much longer. GMC used about a 6" flex hose between the firewall and the engine to solve the problem. If you put AC tubing in a bender and then soft copper from an automotive shop, you can feel the difference.