Gauge Question

[timelessconstructionllc]

Is there any reason that a mechanical oil pressure gauge couldn't be used as a fuel pressure gauge? i am aware of the issues regarding fuel in the cab etc etc etc. But other than that, would it cause any problems for the gauge or otherwise?

 

[goodguys75]

not sure but maybe the thickness of the fluids might make a diff... do you have the oil gauge and just want to use it, if not buy the fuel gauge...

 

[timelessconstructionllc]

Yes I do already have it but the other thing is that theydont make a mechanical fuel pressure gauge that'll match my existing gauges.

 

[PBJ2500CTD]

Should work OK, but I would recommed an isolator for safety. Depending on the gauge range, swing and resolution it may not be as accurate.

 

[timelessconstructionllc]

Thank you. It's an autometer C2 full sweep, 0-100psi oil pressure gauge, if that helps anything.

 

[Prairie Dog]

I think its the gauges range that you won't be happy with. The meager FP we run is just barely going to register on your gauge.

 

[AH64ID]

I agree on the range being way off, you will see between 5-10 psi.

 

[PBJ2500CTD]

Yep. You won't be happy if the pressure you want to measure is in the lower 20-25% of the full scale of the gauge.

 

[PBJ2500CTD]

The electric fp gauge looks nice (and expensive )

Auto Meter 7162 Auto Meter Cobalt C2 Gauges

 

[CKelley1]

any 0-15 lb gauge will work go to genosgarage.com and get the taped banjo bolt and go to autozone and get a oil pressure gauge installation kit, get the copper one it is about $9 and has all of the fittings needed with 6' of copper line i usually get the gauge from ww granger for about $15 i mount most of ours down by the shifter using the smallest gauge i can get. you only need to glance at it about once a month. the only time we mount one on the dash is on the trucks with the vp44's

 

[timelessconstructionllc]

i already got the fuel pressure gauge and a ported and tapped tee to tie into the fuel pressure line right before the cp3. I also already have the oil pressure gauge, but i accidentally ordered an extra one so i was going to use it to tie into the fuel line before the first filter. That way i could monitor before and after pressure. Can anyone think of a good use for an extra 0-100psi oil pressure gauge?

 

[CKelley1]

no and there is no need for a pre gauge before the first filter. as long as you have 1 psi under load at the cp3 you are good to go