Boost gauge for fuel pressure??

willyb

willyb

New member
Jan 17, 2013
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Eastern Shore of Md
Has anybody ever used an Isspro boost gauge for fuel pressure? I didn't know if fuel pressure gauges have different seals to hold up to fuel or not.

I have 2 Isspro EV boost gauges one 40 psi and one 60 psi and I don't want to spend the money for a new gauge just to say pressure.

Thanks,
-Will...
 
C

Chris611

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Jul 14, 2007
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Knoxville, Iowa
I assume you are trying to measure the pressure your lift pump is supplying? They make isolators for the gas guys to keep them from bringing fuel into the cabin. Diesel, while not as flammable as gas, is probably best left out of the cab as well. I have ProSport gauges with the electric sending unit going to the gauge. So there is a sensor on the fuel line and then just wires going from it to gauges. I have been using that for several years with diesel fuel and it has worked fine. It was sold as an oil pressure gauge.
 
mike diesel

mike diesel

I'm alright.
Sep 6, 2012
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I used my old isspro boost gauge as a fuel pressure gauge on my Cummins. Plumbed fuel right into the cab and everything. Never had an issue.
 
willyb

willyb

New member
Jan 17, 2013
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Eastern Shore of Md
It is to measure pressure from my lift pump.

I was actually thinking about mounting it under the hood where the service port is. But I have ran fuel into the cab on 2 of my other trucks with no issue. I've had isolators go bad and I don't like dealing with them.

The question at hand is whether or not the boost gauge will work with fuel not where a good place to mount the gauge.

-Will..
 
Dirtymaxx03

Dirtymaxx03

Active member
Aug 4, 2009
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It should work just fine. Hell, I just rigged an oil pressure gauge up as a boost gauge on my roommates 12v haha
 
blk smoke lb7

blk smoke lb7

<-----Lots of green $
Nov 8, 2010
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belvidere,ill
I wouldn't do it if its a regular boost gauge I used a boost gauge for a drive pressure gauge and I left it hooked up on a 5 hour drive and I started to notice a drip......it was from condensation from the exhaust so not sure why it did that.

If its electronic measurement you would be alright.
 
lifteddirty

lifteddirty

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Aug 20, 2013
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casper wy
It would work, but if you didn't tie up your line correctly or if anything were to happen, you would have a 1/16th inch stream of fuel at 12-19 PSI spraying everywhere.
 
The Kansan

The Kansan

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Aug 30, 2013
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Topeka, KS
DIESELMAFIAPER.LB7 said:
if its a isspro it should be a electric sending unit no? I have a isspro sending unit that's electric no need to plumb any lines into the cab for me anyway
Click to expand...

^^^X2 . I just wouldn't want to Take the chance of having fuel leak if its a mechanical gauge. You would smell fuel in the cab for quite a while. Plus below the piller is a fuse panel.
 
DieselmafiaLLY

DieselmafiaLLY

Keep Calm and Go Crazy
Apr 6, 2013
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Ontario, Canada
blk smoke lb7 said:
I wouldn't do it if its a regular boost gauge I used a boost gauge for a drive pressure gauge and I left it hooked up on a 5 hour drive and I started to notice a drip......it was from condensation from the exhaust so not sure why it did that.

If its electronic measurement you would be alright.
Click to expand...

its good if you put an in line filter on these to catch anything in the copper before you go to regular line

DIESELMAFIAPER.LB7 said:
if its a isspro it should be a electric sending unit no? I have a isspro sending unit that's electric no need to plumb any lines into the cab for me anyway
Click to expand...

he has a mechanical since its boost but you can get an insolator that switches from fuel in the line to antifreeze for that part that goes into the cab but for the trouble its easier to just buy the right fuel gauge that's electric
 
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