I have the oil guage and the 2 guage pod-still awaiting the fuel guage. Is this safe to do? I do plan on installing needle shut off valves under the hood at the source as emergency shut off. Any one already running around with this set up? Carmyne

 

To me diesel is just oil so its good enough for me. In most places I think its illegal to have it in the cab tho and thats why they make isolators for them but they are pretty expensive.

 

That's what I have. I feel you can't beat mechanical anything. It's just hanging out of an empty cigarette lighter plug.

 

Thought I don't run one, it's my understanding that the general rule with a fuel line in the cab is . . . . . . Don't Do it! Crashes, ruptured gauge workings and lines. At bit risky.

Some may though, I dunno.

If I'm not mistaken, one can get an isolator like this ~ http://store.summitracing.com/partde...5&autoview=sku. A device that pretty much has a diaphragm assembly that separates the fuel proper, from that which goes into the cab to the gauge.

Honestly, I can't get past the fact that an emergency cut off that requires one to get off the highway, come to a safe stop, get out without getting run over, open the hood to get to it, in a BIG hurry . . . . . . ain't no count.

FWIW, for testing purposes, I always do some kinda temporary mount at the base of the windshield outside the cab.

Hope this helps. Perhaps one better informed will chime in.


DANG! Folks above me beat me to the post!

 

not safe,my vote...

 

- check thru the posts on this site, I would bet the vast majority are running fuel into the cab, many have noted that the isolators do not seem to hold up very well....vibration? Exposure to the Diesel?....not sure, but many of us have seen NO issues with in-cab fuel leaks... some for MANY miles / years. Seal it all up right the first time, and never look back! AND - yes, the needle valve is excellent as an emergency sutu-off, and also reduces impulse loading to the gauge system.

Rauschbo

 

I understand what you're saying.

Still though, a fine pressurized mist with a source of ignition is no good excuse to make the 6 o'clock news.


Some interesting reading ~ http://www.suv-rollovers.com/rollover-fuel-fed-fire.cfm

And this is without a fuel line in the cab.


It appears that all sanctioned races of any sort have a rule similar to this

 

Diesel is not flammible only the fumes are it is much harder to ignite diesel then it is gasoline or other simular things like that.

 

If you are in that bad of a wreck, you are probably killed and it won't matter.

 

lol well thats a different way to look at it

 

so it sounds by all the replies on fuel guage the oil pressure is good to go?

 

OK, do you want the real world.
The fuel pressure is a much lower pressure than oil pressure on a first gen.
I have fuel and oil pressure both run into my cab. I have been a diesel mechanic for 24 years. I have never seen any oil or fuel leak in any cab that caused any kind of accident.


Yes they have run fuel and oil pressure into cabs for years. This is what I have seen in the trucking industy. there are trucks with over 1 million miles still running manual gauges.
Fuel pressure on the older cats"3406" can hit 80 PSI and they have manual gauges inside.
If you run manual gauges then run steel braided line and not some plastic junk.
Just my 2 cents

 

Frostie,what size braided ines are available? I know 1/8" and 1/4" is common in plastic, and ideal for space reasons. What is the smallest in steel braided?

 

I've run mechanical oil pressure gauges into the cab no problem. With a mechanical fuel pressure gauge, you'll kill it in no time with live fuel running directly to it. Use a snubber, isolator or just use an electric fuel pressure gauge and be done with it. - For fuel pressure that is. Pulsing of the lift pump/camshaft kills the mechanical gauges.

 

My mechanical in cab fuel gauge is still working. No leaks yet, but there is a valve at the engine.