12v fuel gage ?

[JFaughn]

I was wanting to install a f. p. gauge on my 94 , and have heard some talk about pulsing gauge , has any one solved the pulsing problum ?









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94 CDT 2500 4x4 LB A. T.

 

[ToolManTimTaylor]

The pulsing is the reverberations found commonly on 24V vp44 equipped rigs. It sends it right back up to the guage. To solve that was a simple 18inch grease gun hose between the sending unit and the vp44. On 12V rigs I don't think there's an issue.

 

[JFaughn]

I must have had it backwords , not uncomin.

 

[Joe G.]

The pulsing is WAY worse on the 12 valve engines with the P7100 pumps. The pressure spikes will wreck a fuel pressure gauge. I use a needle valve tapped into the banjo fitting on the input to the P7100 injection pump. It is just barely open enough to make the gauge work. A gease gun hose is screwed into the needle valve and goes to the fuel pressure gauge sensor. If you use a mechanical fuel pressure gauge on a 12 valve without something to dampen the pressure spikes the gauge clatter will drive you nuts.

 

[ToolManTimTaylor]

Whoah I stand corrected. The VP is a good killer too as I wiped 2 60 dollar sending units. I had no idea the 71oo would do that.

 

[Cummins4Life]

I was suprised at the vibration the 12valve has. When I tested my pressure with the manual gauge it would beat the gauge against the door pannel when hanging over the mirror.