durability of a waterman gear driven pump?

Yeah i think i had probably $250 in fittings. 16 feet of 3/4" fuel line and about 30 feet of 3/8" fuel line. Plus the fuel cell, check valves, drive hub, mount flange, filters, and all the fancy clamps to run all the fuel lines. When you look at it like that the pump is the cheap part

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Yea I know how much fittings are just thought $1500 was a lot for fittings and hose

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As with any pump, the stock lift pump has to be properly plumbed before calling it inefficient. Tork Tek mentions this. The 8.3 lift is supposed to flow even more.
 
Never had given thought to the 8.3 LP, anyone ever ran one? what would be the best way to plumb one of these to make it the most efficient and be able to keep 40 PSI under a load?
 
I put one on the engine in my F800 4x4 Cummins thread shortly before pulling it in shop for rebuild. I don't have my notes on part #, etc., but my local pump, turbo shop did say it would pump more fuel. I just ran it with no issues, but can't give any numbers. Bear in mind, that like with 5.9, there is more than one LP for different apps. Maybe your local shop or someone here can help out with what the different pumps are good for. Eliminate any restrictions in your existing line from beginning to end, or better yet enlarge and eliminate. It really don't take a lot of hi dollar, fancy fittings to do this! Use the rite OFV for your setup.
 
I think I found a few places that sell the 8.3L piston pump, but there is no pictures and several different models, anyone have the part number for the one that would work on the 5.9?
 
My parts guy at cummins looked up the lift pump for a 215hp 5.9 and then multiple 8.3's up to 330hp and they all used the same part number lift pump.
 
You are fortunate as most Cummins parts reps need a serial # to look up anything. Google it and many pages like:
http://www.cumminspartsdirect.com/Category/1682-lift-pumps.aspx
show numerous part numbers. My 8.3 LP is definitely a dif Cummins part # with visible difs from the stock 215 hp LP. Even if it were the same, it has been stated what the original is capable of. Tork Tek's article two explains how to size your intake line.
 
Does anyone know the lift of the 8.3 cam lift pump lobe? If it is the same .250 as the 5.9, then rated flow for a 8.3 pump in a 5.9 would be accurate, if plumbed the same as 8.3. If it has more lift, then a 5.9 LP in a 8.3 would flow more, if a 5.9 LP is capable of more lift or longer stroke. In it's stock setup, a 5.9 piston pump is "capable" of 1.48 Calculated GPM at 2500 RPM, and 2.36 Calculated GPM at 4000 RPM according to Tork Tek's calculations. That is flow and pressure is just the resistance to that flow that you create after LP. I wonder if anyone has ever considered dual OFV's?
 
I just got off the phone with Cummins, and like mentioned before, they won't hardly talk to you unless you have an engine serial number. So what I need to find out is what is the highest HP 8.3L ever produced with a mechanical pump? And what is the serial number of that so they can reference me the part. If anyone is more knowledgable please chime in.....
 
Just curious if anyone knows how much additional clearance would be needed to use the stock fan and get it to clear? If anyone has one and could measure how far out the waterman protrudes towards the radiator that would be great. Do they make a hub spacer or a shim to move the fan an inch or so towards the radiator?
 
Mine is 3 1/2 inches from the cover to the outer most face of pump
The fan will flex out with rpms so be careful how close you get it to the radiator and the pump(electric fan may be a easier option)
 
My airdog 165 holds 60psi to my ppump 24v all day with 191 dvs and 7x12s....

If low fuel psi was he issue I can see the interest but if reliability is the reason you want one but you have to be in here questioning how reliable it is then maybe....

On edit: ignore this you are way past the waterman idea didn't see there was 3 pages lol

Just buy a dam electric pump and move on. Not worth the headache!!
 
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I would run a stock 12V pump before I would ever consider an electric pump. Much cheaper and less headaches. The only thing good about buying an electric pump is that it gives you a month or two to research what kind of pump you'll go with when the electric one goes out....ha
 
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