another after market lift pump bites the dust

[Archive]

Summit pump good so far.......

I followed Articat in the pump department and installed a Summit at the fuel tank with a prefilter. I used the feed wire to the stock pump (which was my second and now resides on a shelf) to activate a relay. It is very noisy, but as with a lot of other modifications it has become a part of the trucks "character". Underhood pressure gauge shows 16psi. at idle. I don't know the numbers for full throttle, but my 4psi. post filter warning light has yet to come on. My fingers are crossed. ( BTW, 6000 miles so far. )

 

[Mopar-muscle]

with my luck my pump will buy the farm when i hit SUBMIT REPLY

i'm baaaaaaccccckkkkkk ... . i'll have to find the thread on when i swapped my pump for the carter HP , but i'm guessing 10,000 miles ( installed sometime in march of 2001 ) still going strong , carter HP 15 psi in the stock location with NO BANJOS has propelled me to a 14. 38 in the 1/4 last i checked it was 5 psi wide open with dd3's , ez and hot pe level 2 . until you open up passages in the VP44 you can supply it with 50 psi thru a 20 inch line and 500 GPH , still will only flow what the internal pump will let thru , not a drop more ...

 

[B. Gill]

i have a rather radical set up, a Bosch pump from a gas engine(Merceded Benz 420 SEL,used) it is a cylinderical device that pulls fuel thru it and in the process fuel cools and lubricating the brushes then it pumps fuel out to a filter set up that consists of an oil filter that i am using as a pre filter as the stock fuel filter is still in place, the oil filter can filter down to 20 microns, before the pump i have an inline filter that Mercedes Benz uses to keep larger particles from going into pump.

so far it has been running very well, i have bypassed the stock pump meaning that it is not part of the set up but it is still at the loaction(inlet and outlet well covered), i have a regulater on the pre filter(oil filter that i am using after the pump) that i can adjust pressure from there, the regulator is a banjo bolt that is also from Mercedes that has a steel ball and a spring behind it and they are kept in there by a bolt that can be screwed in deeper to increase the pressure or decrease it, and excess fuel after the desired pressure is reached gets shunted back to tank. my truck is stock and so far it has been working very good about 6600 miles since i put it on and when i feel that it is the pump that will work then i will put a new one on but for now i dont want to spend money when i dont have to. my ultimate plan is to have 2 pumps in parallel one working at a time and they are controlled by a switch,one position on switch controls one and other position controls the other so in case if one pump fails i just can flip the switch to other position and cummins would not even miss a beat. i have the pump near the tank and it is so easy to work on it in case it needs to be replaced etc etc. the whole set up has cost me less than $50. some might wonder why i used an oil filter as a diesel fuel filter well it is cheap as the oil filter element is only about 3 dollars and it saves the stock fuel filter by keeping most of the particles in it and i can change it as often as i want to, just some extra protection for the whole fuel system. i have the fuel pressure guage on my truck and it never drops below 12 or 13 at wot just a slight dip and comes right back to 12 and i have experimented with pressure that i can raise pretty much as high as i can as the gas fuel pumps are capable of sustaining quite high pressures. just my 2 cents as we try to find the solution to our problem

 

[Todd T]

dual pumps

I am going to go against the grain on this one but I know it works, and My truck is not so stock anymore.



EM, the dual Carter pump setup like Steve St. and I are running will still get you home with one dead pump. I have tried killing both pumps one at a time and the truck will still run fine. The Carter pumps are very low restriction. I could blow through it with no more restriction than blowing through bed sheet.



I took mine one step further and sourced my pumps from Car Quest. They have two different pumps that are rated at 15PSI@100GPH free flow, and one that is 7-9PSI@70GPH. the first two are our lift pumps for these trucks and the second one is the one I am using for a helper at the tank. I have it plumbed at the tank. it cost me $89. 00



until someone can make a pump that will last longer than a couple of weeks I will stick with my totaly redundant dual lift pump setup that will get me back home so I can remove the bad one and take it back to use the lifetime warranty it came with.



17PSI @idle

14PSI @high idle

12-13PSI @highway speeds

9PSI @WOT

 

[EMDDIESEL]

Thats what i wanted to hear, the last thing i wanted to do was add another restriction to the system.