fuel pressure gauge
 

I need to replace my fuel pressure gauges. I have one mounted on the regulator and one on the cowl. The one on the cowl is not reading correctly and the one on the regulator is a cheapo one and the needle bounces around so much you cant get a good read on it. Any one have a good recommendation? what about the ones with an isolator? I still want one on the cowl and one on the reg under the hood.

Thanks,

Re: fuel pressure gauge
 

If the gauge on the cowl is liquid filled, there should be a screw somewhere around the top of the gauge. Loosen that screw and let it sit for a few minutes and that should equalize the pressure from the inside of the gauge to the outside. It has to do with temperature and barometric pressure. Derek

Re: fuel pressure gauge
 

Not oil filled. Just real old. Its been on the car since I built it 37 years ago.

Re: fuel pressure gauge
 

we have old Autometer probably even older on my Mustang AND OLD OIL FILLED LITTLE HOLLEY ON THE REGULATOR, BOTH WORK AS GOOD AS NEW I should have some of each in stock I replaced a even older chrome Sun that failed with the AUTOMETER, a eon ago and Tom Jenkins gave us the little Holley ones for all 3 cars when he was with Holley they were so failproof we started to sell them

Re: fuel pressure gauge
 

Why do you want one on the reg. and the cowl? They never match and only confuse you. I say put one on the cowl (if it's a race car) and use it....
PS: and forget about a liquid filled, in the under hood heat. I could never get one to read right in that environment...