[ranchmgr]

Installing electronic isspros on my son's 2001 3500. Is a needle valve/snubber needed to be installed between the filter housing and the sensor for the fuel pressure guage? Not sure if it would extend the life of the sensor like it does the guage on mechanical ones due the fluttering. :confused013:

 

[WillM]

Yes. His sensor might last a couple months if he's lucky.

Use a needle valve, and open it about an 1/8 of a turn, if that. . . Just enough where fuel can flow through.

 

[Mopar1973Man]

Yes. His sensor might last a couple months if he's lucky.

Use a needle valve, and open it about an 1/8 of a turn, if that. . . Just enough where fuel can flow through.

Correction...

Use a needle valve, and barely open it so you needle rises slowly taking 1-2 second to hit full pressure. . . Just enough where fuel can flow through

 

[ranchmgr]

Thanks! Will be a lot easier to do before hand. :thumbsup:
Now just gotta hope my local under stocked NAPA has one.

 

[RustyWelds]

Just curious on this.. needle valve on a air dog or fass system to? or this for the vein style pump causing "water hammer"?

 

[WillM]

Correction...

Use a needle valve, and barely open it so you needle rises slowly taking 1-2 second to hit full pressure. . . Just enough where fuel can flow through

And for me, that ends up being about an 1/8 of a turn on the needle valve. . .

 

[WillM]

Just curious on this.. needle valve on a air dog or fass system to? or this for the vein style pump causing "water hammer"?

Yes, a needle valve is needed with any fuel pressure gauge setup. The injector pump is what causes the water hammer.

Mopar1973Man's Dodge Cummins Articles - Fuel Pressure Gauge And Water Hammer Effects

 

[ranchmgr]

Got a valve but was not happy with all the weight and length hanging down off the filter housing. Would the grease gun hose route be a good way to get the valve and sensor up where I can zip tie 'em somewhere?
Other than that guage install is going good.....pillar is up with guages and all wiring run through firewall. Boost bolt in, hooked up. Just gotta hook up the keyed 12v, dimmer, and ground.....then finish the fuel pressure sensor. Gotta wait till Friday for a size R drill bit for the pyro ....had not idea it would be that hard to find one around here.

 

[WillM]

Got a valve but was not happy with all the weight and length hanging down off the filter housing. Would the grease gun hose route be a good way to get the valve and sensor up where I can zip tie 'em somewhere?

I don't see anything wrong with that. . .

filter housing > grease gun hose > Needle valve > sensor > fuel line > gauge.
:thumbsup:

 

[ranchmgr]

Cool..thanks!:thumbsup:

 

[WillM]

I don't see anything wrong with that. . .

filter housing > grease gun hose > Needle valve > sensor > fuel line > gauge.
:thumbsup:

Sorry! I was thinking mechanical gauge.

So it would be: filter housing > gun hose > needle valve > sensor > then the wiring. . .

 

[cumminsdog]

huh....ive been running my electric FP sensor right at the VP for over a year now with zero problems...and an 18" grease gun hose to a genos snubber for my mech gauge. no proplems no water hammer.

 

[Mopar1973Man]

Just curious on this.. needle valve on a air dog or fass system to? or this for the vein style pump causing "water hammer"?

The actual source of the water hammer is the VP44 so if you can tap farther back away from the VP44 the pulse are less. As for the grease gun hose that a myth too because vibration has zero to do with it and the grease gun hose still transmits the pulses. But CumminsDog has a snubber so he should be OK. But we'll find out. I'm curious though what brand of snubber though? Some of them don't work very well.

 

[BlackBlood]

Needle valve is safer than luck of water hammer. I need to finish my setup like moparmans just waiting on my dtt assassin pump so I can finish everything up.


Sent from my iPhone using AutoGuide.com App

 

[ranchmgr]

Sorry! I was thinking mechanical gauge.

So it would be: filter housing > gun hose > needle valve > sensor > then the wiring. . .

I knew what ya meant:thumbsup:

 

[cumminsdog]

CumminsDog has a snubber so he should be OK. But we'll find out. I'm curious though what brand of snubber though? Some of them don't work very well.

fuel pressure comming in from the black grease gun hose. There is a rubber diaphram in the middle (the seam is under the strap). the diaphram has a cup in it about the size of a marble, toward the fuel side. fill the gauge side with anitfreeze and bleed the air out of the line to the gauge.....Pain in the rear!!!! The fuel side has a small plug to bleed fuel. its real nice cause i dont have to crack the line to the VP if i need to bleed the supply line.

 

[ranchmgr]

Should finish up everything but the pyro today. Will be Monday before my size R bit comes in. Will it be ok to tie up the pyro wire and run the truck without it hooked up with the pyro being electric?

 

[cumminsdog]

see no reason why it wouldnt be.....

 

[crackshot]

You have some crud on your terminal.

 

[WillM]

Who doesn't???