Engine/Transmission (1998.5 - 2002) Everyone running dual Carter lift pumps (helper pusher pump) chime in - any failures?

[Steve St.Laurent]

Since many people are trying all sorts of different solutions to the lift pump issue I was curious how this setup is holding up for you guys. AFAIK only one person on here has had to replace their stock lift pump after adding a low pressure Carter back by the tank (Doc Tinker) and his stock lift pump was already dying when he added the pusher pump and his lasted for a long time even though it was already on its way. Enterprise Engine started installing this setup in January of last year and AFAIK they haven't replaced any lift pumps with the setup since that time - and some of the first trucks were hot shotters which should have well over 150,000 miles on the setup by now. I have 45,000 miles on mine now and still see a minimum of 16 psi at WOT, 20 psi at idle. So has anyone had to replace a lift pump after adding a low pressure Carter helper pusher pump back at the tank? If so, was your stock lift pump already dying when you put it on? If you're running this setup and it's still working great how many miles do you have on it now? TIA

 

[Marco]

Steve, I think I got the pusher pump a week or two before you did install yours. Dunno how many miles I have got on mine, point is it works GREAT. No more issues with stuff that Cummins should have done right from the beginning.



Marco

 

[Riflesmith]

Installed my pusher pump at 43000 miles. Still have 17 psi at idle, 10 psi at WOT. Now at 59,000 miles. Seems to be holding up real well.

 

[Todd T]

Steve, i replaced my factory pump under waranty at 30,000 I brought the truck straight home and installed the Carter at the tank. i ran this way until last month when i sold the truck. I had 469HP when i dynoed in february and drove it that way for 23,000+ miles on the dual pump setup.



BTW: the truck still has both pumps to date but is severly lacking in the amount of HP it once had

 

[Steve St.Laurent]

So far not a single report of a failure with the dual pump setup - anyone?

 

[CStewart]

Whats the right PN# for the 7psi carter pusher pump and where is the best place to buy it? Any tricks to plumbing and wiring it up? Thanks for the Help!



Chris

 

[Steve St.Laurent]

I don't have a part number but I bought mine through Enterprise Engine Performance ( http://www.enterpriseengine.com ) . When I bought mine it didn't come with the relay, but they include the relay in their kit now. For the installation instructions that I wrote up go to https://www.turbodieselregister.com/forums/showthread.php?s=&threadid=19767

 

[777 MECHANIC]

Summit has the 4600 HP for $70. 00. Includes the mounting bracket and hardware. No relay is included.

 

[TxDieselKid]

ttt

Some of you guys running the kit from Enterprise, could you please post your mods, and your pressure.



Steve I already know you got an underpowered truck with 275's and a hot PM3, but I am wondering about some people who have stage 3 or 4 injectors, and the big box (Comp or PM3) with a big turbo, what kinda pressure are you all getting?



Thanks in advance,

Andrew

 

[jkern]

Steve



Please see my post of yesterday... "lift pump failure after 1500 miles"

 

[jkern]

sorry, here is the link!





https://www.turbodieselregister.com/forums/showthread.php?s=&threadid=38278

 

[MCummings]

I just put in a dual pump, dual filter setup on my truck this last Friday.



I'll let yall know what is up, and how the pumps hold up. I have -6AN line from the rear LP pump (7PSI) to another Carter HP pump (15PSI) in the stock location, then all the way to the injection pump I have the -6AN line (Looks Cool ) I should have 20-30PSI at the injection pump. All I need is a 2 5/8", 0-30PSI Fuel Pressure Gauge so I can moniter the second pump, and know what pressures the VP44 is seeing.



So Far, I have only had a few hard starts,, it seems that if I hit the key at Just the wrong time,, the Motor doesn't catch as fast as it usually does and usually cranks once or twice more than normal.



Merrick Cummings Jr



P. S. Anybody know where to find a 2 5/8" Full sweep 0-30PSI Fuel pressure gauge???

 

[1tuffram]

MCummins

Look in the products/acces forum. I just started a thread re: opinions on the Westach guages from Genos. Someone posted a reply stating in about 2 wks Geno's will be carrying a 0-30 Westach fuel pressure guage.

 

[Snow man]

Im running the pump from enterprise,for 7K now,I still have the stock lift pump,with 60K on it. I think it was hair weak,when i put the pusher on,but its still working. Before the pusher, I had 11-12 at idle,6-8 cruising,4 psi WOT with Edge comp off,comp on-2 psi on the SPA guage, on level 5 of comp:--) ,nowi have a minimum of 4 psi with the booster pump ,on levle 5 of comp. and 17-19 at idle,and 11-14 cruising.

 

[Steve St.Laurent]

TTT

 

[Shooter]

I have had the Enterprise pusher on for about 20k mi. To day my lift pump died and took the FP relay with it. Pusher is able to hold 16 at idle or low speed driving and 11 at wot pushing through dead lift pump. Thank god for trailer relays to get to auto parts store for spare relays.





What is the part # for the latest and greatest Cummins pump ????????



edit: 53,xxx mi on truck

 

[MCummings]

Originally posted by Shooter

Pusher is able to hold 16 at idle or low speed driving and 11 at wot pushing through dead lift pump.

Why would you put another pump with those kind of numbers???



That's excellent numbers,, Just superb. Anymore (Up to ~20PSI), and your asking for trouble, any less and ditto.



My Setup I feel is probably yielding to much PSI, but I won't know till I get a FP Gauge.



Merrick Cummings Jr

 

[Shooter]

When I installed the pusher my stock pump was producing 11# at Idle and 5# at wot. After install it has run a steady 18# at idle and wot. I like the 18# around town and towing.

 

[EricBu12]

Here is my mods for the dual pump setup with the Racor filter/water separator



I got the Filter with a water in fuel sensor and Heater with the optional kit for the filter minder gauge kit at Diesel injection service in Lubbock, TX.



3212 slanton rd. Lubbock tx, 79404 (806)-745-4122



#RK 11-1570 the kit for the filter minder gauge and vacuum sensor



#22628 the wrench for the bowl



#R45P a replacement element filter 30 micron (spin-on kind)



#645RP1230 The main unit with a filter and water in fuel sensor and heater installed



#RK 30770 a 3/8” one-way check valve to bypass the pump if pump fails.



Total of items was $290. 00



The unit has 4 inlets and 3 outlets on it. One inlet is for the vacuum sensor and the other for inlet of fuel and it comes with plugs for the rest not used.



I used one of the outlets for the pump and one for the bypass to the outlet of the pump itself through the one-way check-valve. This is in case the pump fails you can draw fuel through the bypass from the stock located pump.



Used 3/8” Stainless steel tubing for the bended tubes you see for cleanliness of installation and had to get a bender and such and compression fittings and such.



A 3/8” Ball valve for when you change the filter, you don’t want fuel draining out of the fuel tank due to siphon action. I used compression fittings on that too.



Now the Pumps…



From Jannetty Racing Enterprises….

A #CAR-P4601HP 15 PSI 100 GPH LIFT PUMP

# CAR-P4600HP 7 PSI 100 GPH PUSH PUMP



#JRE-P4601 JRE LIFT PUMP INSTALL KIT

#JRE-P4600 JRE PUSHER PUMP INSTALL KIT

Total of these items was $348



Now depending on if you have a long-bed or not, will depend on how you mount these. If you have a long-bed, use a plate to assemble the stuff on a bench then bolt to the frame just in front of the tank. You have to cut a bit of the lower pipe out with a tube cutter. I mounted mine above the drive-shaft on a “L” bracket bolted to the plate and it hanging from the crossmember that runs above the tank. I just clipped the hose from the tank and ran fuel hose to the filter then the pump back to the hose from the tank. I had to clip the end of the stock hose but it was plastic. . There is a relay for the pump and instructions from Jannetty is clear on how to hook it up.



It took me most of a day to put the pusher system on once I had all the stuff mounted on a plate of aluminum. Oh and I also threaded the plate with a tap set to bolt the parts right to it using fine thread bolts.

Plan on making the system up from the parts then tackle the install to the truck.

I like this system and I also hooked up a Fuel pressure gauge just after the lift pump and I read 13 psi idle, 10-12 cruise, and no less than 8 WOT. I think I have it worked out good!!

Good luck on your install



Eric





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[Steve St.Laurent]

TTT - so far only one failure where both pumps were new, anyone??