It seems funny to me that fuel injected cars run high pressure electric pumps well over 100k miles, while the Cummins tranfer pump lasts about half as long. Gas does not lubricate as well as Diesel.

I wonder if the engine vibration is what kills them. I am toying with the idea of relocating the transfer pump to the inner fender or some other location away from the engine. What do you guys think?

 

that has been a though many have looked at as to the reason the lift pump dies. Either that, or it's cheap, or it might be that diesel is a bit thicker than gas, thus the pump has to work harder.

anyway, you cannot go wrong with a fass or some other system which usualy mounts on the frame away frrom the ruckus of the engine.

 

Tell me more about the fass. What is it and where do I find it?

 

the FASS pump is a better, higher volume pump for our trucks. it comes in two models configured in two different ways, the FASS-I comes in a 95 and 120gph pump with it's own filtration. the FASS-II does not have filtration.

if you want to know more just type FASS into a google search

 

Thanks!

I have an old Mallory Comp Pump. It is a geroter type pump rated at 120 gph with a 6.5 psi pressure relief. I'm don't know how much pressure I should have or if I should use this pump on diesel fuel. It was designed to supply high performance carburated gas engines.

Paul

 

no more than about 16PSI pre injector pump.

the stock LP will keep from 16-12PSI pre injector pump and can be drawn down to about 0PSI apun WOT

 

Thanks!

I think I'll try frame mounting a high performance automotive pump. They are a lot cheeper than some of the aftermarket diesel solutions I have looked at.

 

they may be cheaper in comparison, but remember, Diesel fuel is a good bit thicker than Gas

 

On my brothers 01 the lift pump lasted almost 200k, then he replaced it with the fass pump. A bit loud, but you know its working (or at least making noise)

 

For the price of tha FASS pump I could buy 3 OEM pumps.