2nd Gen Non-Engine/Transmission Fuel Pressure Gauge Install

[MTPhillips]

First question..... Where or how do you mount the fuel isolator? The only thing I know to do is tie wrap it!?!? Ok my other question is how do you beed the air out of the lines?... . Can I leave the line loose and turn the key on to prime it? I'm defintely a newbie so bare with me. And what kind of fluid can you put in the gauge side line... . I have one of those isolators. The directions that came with this set up are not quite the best discription.

 

[EBoyts]

isolator location

I know there's more than one place to put it-- but mine is mounted on the firewall, directly in front of the steering wheel. Seems like a good a place as any.

Its a mechanical isolator from Diesel Dynamics-- costs a bit more than some others, but seems well-made.

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Yes, to bleed the line from the VP44 to the isolator, keep the fitting at the isolator loose while you "bump" the starter (you don't want it to crank), this will start the VP44 and you can tighten the fitting after air has blead.

I have anti-freeze in the isolator-gauge line-- this was probably the more challenging part of the install- priming the line to the guage; it took 2 of us, one at each end of the line, feeding the fluid from the isolator end with a plastic syringe while we both tightened fittings.

My guages are on the A-pillar, I stuffed a rag behind the guage to try and catch the fluid during the install.

So far, my setup has worked fine.

 

[MTPhillips]

Looks great!!! Thanks for the info!!

 

[Rman]

There is no need to bleed fuel before the isolator, once the pump is turned off prime is lost as fuel returns to the filter bowl.

 

[EBoyts]

I'd prime it. Have you ever held water in a drinking straw by covering the top of the straw with your finger? I'm not convinced the line from the isolater will drain once the pump stops.

 

[Billy Diesel]

I had to replace my isolator and guage last week, and when I removed the hose to the VP from the isolator, no fuel drained out. I even had to reroute the hose, which required 3/4 of the length to be pointed at the ground for a while. I think I had one drop of fuel hit the ground, that's it.



To fill the line with anti-freeze, have someone pour slowly as you suck on the other end. It goes much faster. It doesn't create a mess either.