Fuel Presure Guage

RRILEY

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I have an inside the cab fuel ppreasure guage on the A-Pillar and it leaked. I had to use a steel brake line and cut to fit and taper the other end just to get the truck to run. The A-Pillar was cool but it does restrict your vision. What type of set up can I use that doesn't bring diesel fuel into the cab again? This is for the Cummins 2002, 2500.
 

Mopar1973Man

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This is what I've got for plumbing...

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And this is my gauge pod...

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So far no problem with either leaks or vision problems... For the vision problem I not in a big city with lots of cross traffic... So I guess I'm luck in that regard. As for the leak problem I use a needle valve to shutdown the supply of fuel it there is a problem. I've started a small weep when I was trying to change a bulb but I just shut it down and replaced the ferule and then crack open the valve (1/4 turn) for normal operation...
 

RRILEY

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Fuel Preasure Guage

Thanks Mopar1973Man, Thats a slick trick. Now off to the hardware store.;Sweet
 

geonc

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Running any fuel line in the cab is cookoo at best....not flaming or nutin';Sweet

Drag cars have run a diaphram type bellows that mounts in the eng compartment---fed actual fuel press---from there 1/8" plastic tubing---same a boost--is fed to the guage;Sweet

press is applied to the diaphram and it in turn relays the press thu the hose to the guage.....no fuel in cab:hail and no big bulky lines:D

depends on how safe you want to feel and how much $ you want to spend....what is the fuel press currently running?


linky to one.....

http://store.summitracing.com/egnsearch.asp?Ntk=KeywordSearch&DDS=1&Ntt=fuel+pressure+isolator&searchinresults=false&N=+115&y=1&x=34
 
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RRILEY

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Fuel Preasure guage

I don't remember now what the preasure was. It was with copper tubing and a small crack. The guage was going spastic. It was all over the place and never still. I hav not done any fuel pump replacement mods yet and I think it was around 8 or 9 lbs. I was lucky that it was in the drive way when it broke, except then I needed a ride to find parts.
 

Mark Craig

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RRILEY,

Do yourself a favor do NOT let fuel in the interior, if not for safety reasons you'll never get the smell out of the cab if it leaks. We sell a complete install kit that has the isolator like geonc mentioned, the banjo bolt and washer, the rubber line and plastic line etc etc. Not than much money and does the job right etc.

Mark @ DPPI
 

Mopar1973Man

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Yes the other above are correct about safety and leakage problems...

But what they are not saying anything about is the problems with the isolators. Bio and standard diesel tend to ruin the diaphram in the isolators. You will stat to get irratic needle (pressures).

There is lots of threads on this problem on DTR and Cummins Forum...

http://www.cumminsforum.com/forum/showthread.php?t=9256&highlight=needle+valve

http://www.cumminsforum.com/forum/showthread.php?t=7647&highlight=needle+valve

http://www.cumminsforum.com/forum/showthread.php?t=5991&highlight=needle+valve

http://www.dieseltruckresource.com/dev/showpost.php?p=1153090&postcount=4http://www.dieseltruckresource.com

The majority of the forum have gone to straight plumbing... But if you deside to use a isolator make sure you still put in a needle valve at your access point of fuel you won't be sorry...

Your truck... your choice...
 

BBrown

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Diesel isn't as flammable/explosive as gasoline, but here in my state, an in-cab fuel gauge, by law, will not pass safety inspection.
One must isolate the fuel line with an adapter or snubber as some call it - it allows the preassure to be sent to the gauge without pumping fuel to it.
It also adds life to the gauge - without a snubber the mechanical fuel pump will pulse the gauge with each stroke.
It wasn't fuel, but one time while cruising at about 8,000 feet (in the air), I had a mechanical oil gauge wear through the line right at the firewall in a rented Comanche. 'Till we found a place to put down the engine was toast, and the entire cabin, including myself and passenger, thoroughly oiled! The principle is the same. It is always a good rule to keep hot flammable liquids outside where they belong.
Bob
 

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