Should I use a FPG Isolator?
10-31-2006, 08:29 PM
#1
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Should I use a FPG Isolator?
I'm trying to decide which route to take to set up a fuel pressure gauge.I'm seeing set-ups with isolators which will keep any fuel leaks out of the cab.Other set-ups put together with plumbing supply parts with an inline shut off valve incase a leak should develop.
The plumbing parts set-up should be about 1/3 the price of a Isspro unit.
What are you running and does anyone know if there may be any insurance issues without an isolator?
I've notice Autometer gauges warn to mount outside of vehicle only! LOL
The plumbing parts set-up should be about 1/3 the price of a Isspro unit.
What are you running and does anyone know if there may be any insurance issues without an isolator?
I've notice Autometer gauges warn to mount outside of vehicle only! LOL
10-31-2006, 09:12 PM
#2
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Isolators have a tendency to fail and can give false readings. I run dang near a -8 line from my fuel filter to my gauge with a needle valve on the filter to dampen the pulses. Been that way for a couple of years with no leaks.
10-31-2006, 09:26 PM
#3
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I concur with BigBlue mine is ran from the inj test port though a needle valve to a mechanical gage mounted just under the dash forward of the 4x4 lever. My theory for doing this is for some reason a leak should happen i would just dump diesel on the floor mat and not down the dash.
10-31-2006, 09:41 PM
#5
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Dig up my thread on fuel pressure issues
IN a simple sence. DITCH THE ISOLATOR.. no need or intention to shout, but its a waste of money, and ive had no issues with diesel leakage whatsoever..
Rick
IN a simple sence. DITCH THE ISOLATOR.. no need or intention to shout, but its a waste of money, and ive had no issues with diesel leakage whatsoever..
Rick
10-31-2006, 10:32 PM
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Read this thread on fuel pressure gauge install, a lot of good info here:
https://www.dieseltruckresource.com/...d.php?t=121388
I agree with everybody else, forget about the isolator, sooner or later you'll take it off, smash it, and deposit it in the thrash.
Diesel is no where near as flammable as gas, if you do get a leak in the fittings, the worst that will happen is that you'll freshen up your cab with the sweet smell of diesel.
https://www.dieseltruckresource.com/...d.php?t=121388
I agree with everybody else, forget about the isolator, sooner or later you'll take it off, smash it, and deposit it in the thrash.
Diesel is no where near as flammable as gas, if you do get a leak in the fittings, the worst that will happen is that you'll freshen up your cab with the sweet smell of diesel.
10-31-2006, 11:04 PM
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Ive been told that the newer isolators are now made from different materials and that diesel is now compatible with the diaphrams.
That being said, I still think isolators tend to cause problems. Id stick with the needle valve or pressure snubber and run the fuel to the guage. There are those that dont like fuel in the cab...so I guess an isolator is about their only choice.
That being said, I still think isolators tend to cause problems. Id stick with the needle valve or pressure snubber and run the fuel to the guage. There are those that dont like fuel in the cab...so I guess an isolator is about their only choice.
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