This is for my dads 304 again. He has a new mechanical guage in it.
New Oil pump gears, BT midplate, Bearings, Cam, Lifters,
When he first starts the jeep it reads 60psi, after it warms up it goes to about 20psi. at idle.
Last week he was driving it around for about 45 minutes or so, when it went to 0psi. This is what made him change the Oil Pump gears and install the midplate. He ran the jeep in the driveway for about 45 minutes, and everything was looking good.
Today he was out driving it again, and after about 45 minutes or so it went to 0psi again, He pulled into a parking lot, and just listend, Motor ran smooth, no noise nothing. We both figure the lifters should start tapping or something. He was annoyed decided to drive it the 3 miles home. The guage stayed at 0psi the entire way. Still no symptoms of low oil pressure except for the guage. He turned the jeep off, turned it back on again the guage went up to 5psi, then dropped again.
We are both thinking faulty guage due to the fact that the motor did no sieze, the lifters made no noises, and there was no other problems.
For the guage he has a copper line running from behind the oil filter to the guage, no kinks, or or anything.
Any other tips of places to look? or do you think we should start out by changing the guage? If putting a new guage in does not change anything what should we do from there?
Thanks in advance
Paul