My Willys 3A and 3B Community

TECH FAQ SECTIONS => Engine compartment => Topic started by: JohnK on August 28, 2023, 12:38:50 PM

Title: oil pressure gauge reading
Post by: JohnK on August 28, 2023, 12:38:50 PM

I have a hardline connection from my gauge to the oil galley.  It is a used gauge I bought.  I have good pressure 20-40 but at times the gauge drops to zero for 10-15 seconds and then back up for a few minutes before dropping to 0 again.  I've thought about getting a new gauge but wanted to check here for any ideas first. This is a newly rebuilt engine and I don't recall seeing this issue with the previous engine.

Thanks in advance.
John

Title: Re: oil pressure gauge reading
Post by: Chuck W. on August 28, 2023, 04:29:30 PM

I would get a good, liquid-filled test gauge and connect it directly to the block.
$12. on e-bay
(https://i.ebayimg.com/images/g/6MMAAOSw6hViu6QH/s-l1600.jpg)

Title: Re: oil pressure gauge reading
Post by: JohnK on August 29, 2023, 11:22:09 AM

Thanks Chuck, I have a new gauge coming today.

Title: Re: oil pressure gauge reading
Post by: JohnK on September 11, 2023, 03:02:03 PM

Added a quart of oil and all is well.  Must has lost the quart during initial running - out the pan, out of the oil canister, and other assorted places until I tightened things up.

Title: Re: oil pressure gauge reading
Post by: Mark W. on September 11, 2023, 11:32:22 PM

My dodge Dakota with a 3.9L V6 will drop to zero going around a sharp corner when the oil is more then a quart and a half low. so it is a thing that can happen.