Lift Pump ['96] Priming Question

[tomblue01]

Fuel filter changed out back in June. New pump installed [$116 from Geno's. Cummins pump, although made in China]. Old one was not OEM. No name stamped on it. Neither did the old one have a weep hole, which my new Cummins one does.
It's amazing how much easier it is to prime when the manual primer button actually works! [Edit: Significantly less pumping required, too.] Noticed some rust on the inside of the hard metal line going into the pre-filter. Nothing serious. The exterior looks absolutely fine. Think I just might replace my feed line setup with a single length of hose...
[Link: Replacing The Feed Line]
Got to watch my pressure ga. climb to about 24psi before hearing the fuel returning past the OFV. That was neat. Wouldn't do it previously because of the faulty primer button.
Also installed the short Cummins "L" hose between the pre-filter and the lift pump. Wasn't pleased spending 30$ for 4.5" of prebent hose. Was even less pleased that it didn't fit all that well [It bends a bit more than the 90*. Not much, but still...]. It does fit better than that aftermarket piece of junk I replaced, though.
Will try and throw some pics up tomorrow.

 

[GAmes]

Wasn't pleased spending 30$ for 4.5" of prebent hose.

It wasn't that long ago they were $6 or $7 from the dealer and from Geno's. Time to start looking for an after market to pack with my spare pump.

I've always had to trim a bit of length to make them fit correctly.

 

[GAmes]

Wasn't pleased spending 30$ for 4.5" of prebent hose.

It wasn't that long ago they were $6 or $7 from the dealer and from Geno's. Time to start looking for an after market to pack with my spare pump.

I've always had to trim a bit off mine to make them fit correctly.

 

[SSage]

It wasn't that long ago they were $6 or $7 from the dealer and from Geno's. Time to start looking for an after market to pack with my spare pump.

I've always had to trim a bit off mine to make them fit correctly.

I put that preheater hose on about 3 years ago, the $30 is rather expensive. I couldn't find a good substitute locally going through the various fuel rated hoses in the auto parts stores.

 

[tomblue01]

The following pic shows my slight "kink" in the short Cummins 'L' hose. For $30, that hose should have been bent in the vertical dimension as well. That would have given it the best fit.

 

[tomblue01]

Patriot, you're right on the money. 'ABFJV' is cast onto the part. I included a second pic showing a safety feature that my old generic LP lacked: the weep hole. As I understand things, this lets out diesel in the even the internal check valve fails, preventing diesel from entering the engine block.

 

[The patriot]

Yes, I read somewhere (probably here) That this one is the latest part number.
Where did you get it? What did it cost?
I like to have a spare, just in case.

 

[Hootguy]

i took all that pre-heater and prefilter bowl garbage out years ago,it's not needed anyways,and yes i live in cold winter area,never been an issue for about 10 years now,a lot less leak prone areas to deal with,fuel line comes from the tank right into the lift pump.

 

[GAmes]

i took all that pre-heater and prefilter bowl garbage out years ago,it's not needed anyway........

I agree that the pre-heater is unneeded but the prefilter strainer is. It will protect the lift pump from ingesting any sand or debris that can easily by-pass the large mesh screen that is on the bottom of the fuel canister. That screen IS NOT a filter, and all the fuel coming out of the tank does not pass through it anyway. If the tank is over 2/3rds full fuel enters the canister from the top and anything that is suspended goes into the fuel line.

 

[The patriot]

I concur.
I've actually went and added a Racor 1000 to my system.

 

[Hootguy]

I agree that the pre-heater is unneeded but the prefilter strainer is. It will protect the lift pump from ingesting any sand or debris that can easily by-pass the large mesh screen that is on the bottom of the fuel canister. That screen IS NOT a filter, and all the fuel coming out of the tank does not pass through it anyway. If the tank is over 2/3rds full fuel enters the canister from the top and anything that is suspended goes into the fuel line.

not sure how YOUR fuel canister is built,,but my has a fine mesh screen EXACTLY like the one that was in my pre-filter,as for fuel being picked up by the top or inside of your module,i'm not sure how that could happen since the bottom feed from the suction line is connected to a one way valve type arrangement,and draws from the bottom of the module.and if you have sand making it's way through the line,,you got a dump truck load in your tank,my lift pump has been going fine for 10 years now,so i can't ask for much more than that,plus they are so cheap to buy,$100.00 for the Cummins one or Carter,the one i have on now is a China built genuine Cummins,not even the new style ones,there is a screen in the inlet of the pump,but it's mesh is somewhat large.these pumps can go through a lot of crap.and that whole pre-heater/pre filter bowl is not used a a lot of B series 5.9's

 

[GAmes]

not sure how YOUR fuel canister is built,,but my has a fine mesh screen EXACTLY like the one that was in my pre-filter,as for fuel being picked up by the top or inside of your module,i'm not sure how that could happen since the bottom feed from the suction line is connected to a one way valve type arrangement,and draws from the bottom of the module.and if you have sand making it's way through the line,,you got a dump truck load in your tank,my lift pump has been going fine for 10 years now,so i can't ask for much more than that,plus they are so cheap to buy,$100.00 for the Cummins one or Carter,the one i have on now is a China built genuine Cummins,not even the new style ones,there is a screen in the inlet of the pump,but it's mesh is somewhat large.these pumps can go through a lot of crap.and that whole pre-heater/pre filter bowl is not used a a lot of B series 5.9's

You are not the only one who is mistaken about the screen and the canister so I posted the facts with pictures in a different forum.
http://www.cumminsforum.com/forum/94-98-powertrain/2385994-about-stock-fuel-tank-canister.html

 

[Hootguy]

odd thing,,mine is an original Dodge canister and the supply tube is connected directly to the one way valve which can only suck fuel through the one way valve from the bottom of the bowl OUTSIDE of the mesh screen,it DOES have a few small drain back holes in the bottom of the fuel canister that goes into the valve for when the fuel level gets low and the return line tries to keep it supplied,so you might get some fine particles if your fuel is really dirty,like i said mine has been like this for over 10 years with no problems,i have removed this whole pre-heat pre filter unit from dozens of trucks without issues,a few guys who run a lot of off road fuel installed a small inline pre filter,a few used a nice set up which i thought was pretty slick,at the frame just befor it turns up at the front,they mounted a bowl type filter housing with a cleanable mesh screen inside,which is way better than that tiny crap pre-filter bowl,i can't tell you how many guy's butt i saved when that stupid bowl with the hex molded in the bottom stripped out,can't understand why,they stick it in a inaccessible place that most people NEVER check,,then mold the hex nut right onto the bowl,then throw a nice big square cut o-ring,and expect it NOT to get stuck to the mount ,LOL.i made a tool years ago to remove stuck bowls,takes me 2 minutes to remove them,i've had dealers who know i work on these things call me and ask me to go remove a stuck bowl,when they see my tool,,they laugh and say "seriously that's it,why didn't dodge or cummins make that tool.myself,it's just far easier to run direct t the lift pump,i may put a pre filter housing in a nice accessible spot in line some day.just haven't been the need for it,,and with the amount of alternative fuels my truck has seen,i put that lift pump through some **** no other owner probably has ever done,including 1000.s of gallons of Jet fuel mixed with vegetable oil,and i'm pushing about 600,000 on this old girl.i know my Megacab wil never do that,got to love these old 12 valve Cummins,most reliable 5.9 ever built,from 1998 on in the 24 valves they've been going downhill ever since,

 

[GAmes]

Your intake tube is not connected directly to the "one way valve", it is just the same as the one I showed except the bottom portion is metal. The tube is about an eighth of an inch above that little valve.The design keeps fuel in the "basket" when the tank is low and you are climbing or descending hills. There are no holes in the bottom. If the pickup is as you think you would be sucking air long before you would be out of fuel. And, as you can plainly see, the mesh screen in the tank is not as closely woven as the prefilter screen. I pull the prefilter screen every 100k miles and replace lift pumps at about the 300k mile mark. Without a prefilter I'd give it 100k or less before the little pieces of grit that the prefilter catches would ruin the valves in the lift pump. In the 10 years since you bypassed the prefilter how many miles and how many lift pumps?

 

[Hootguy]

that's what i was saying,,since running direct to the pump,the new OEM Cummins pump i put in has about 200,000 miles on it,ALL with alternative fuels,tons of jet fuel included,but with vegetable oil added,that's my cold winter blend,in the summer it runs on 100% biodiesel that a make,maybe my fuel is just slicker,but never had a pump issue,the OEM pump i put in was because i suspected my pump was bad,turns out it wasn't,so i still have the old one as a spare,

 

[tomblue01]

http://www.cumminsforum.com/forum/94-98-powertrain/2385994-about-stock-fuel-tank-canister.html

GAmes - neat comparison, there!

 

[leedonald5489]

I have a electric for a Cummings motor ,it works great , ant has bowl , with a vale and bypass the stock , the one one with rubber on out side is ma mainly to keep dirt out , is is leaking , it is from inside the pump , and there o rinks , you can fix , and no it should not leak from out side rubber, I hope that helps

 

[BillBaker]

Make sure you get the proper made in china lift pump from cummins. There are apparently 2 I've seen and perhaps the one shown is the revised one with a weep hole.

 

[GAmes]

Even the OEM Carters had a weep hole. I have heard that the newer ones have larger pistons.

 

[BillBaker]

Even the OEM Carters had a weep hole. I have heard that the newer ones have larger pistons.

Yes.... what I meant was I purchased a new one from Cummins recently (made in china) and it has a weep hole. I know of another guy who alao purchased a Cummins (made in china) pump recently and his had no weep hole. Possible he got one from an old batch and the one I got is a revised unit?