Thread Size, Front Plug On P-Pump.

97' CTD

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Jun 4, 2007
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The thread size for the front plug on our P-Pumps, not the rack cap the allen plug.
Thanks,
Brandon
 
what are you going to use as a regulator to keep pressure in the pump?

i was looking at mine and noticed that the front plug is a lot higher than the ofv port

that might be a good thing...

if not at least its in the front

i doubt cummins ever pictured our trucks accelerating anywheres near as hard as they do

don
 
what are you going to use as a regulator to keep pressure in the pump?

i was looking at mine and noticed that the front plug is a lot higher than the ofv port

that might be a good thing...

if not at least its in the front

i doubt cummins ever pictured our trucks accelerating anywheres near as hard as they do

don


Aeromotive Bypass Regulator. The highest point is the best to return from, bubbles and air rise.
Brandon
 
The highest point is the best to return from, bubbles and air rise.

Brandon

thats what i was thinkin

why a bypass reg? those have one in and two outs. i was gonna put one of those in front of the ip. my lp is maxed out on kill, no more internal reg

whats behind the stock fuel inlet of the ip? isnt there another pump of sorts just inside the pump?
 
thats what i was thinkin

why a bypass reg? those have one in and two outs. i was gonna put one of those in front of the ip. my lp is maxed out on kill, no more internal reg

whats behind the stock fuel inlet of the ip? isnt there another pump of sorts just inside the pump?

The A1000 says to use a bypass reg.
Brandon
 
Inside the p-pump there is no other pump...just the plungers and barrels, cam, etc.

The VE's, and VP's also (I think) have an internal booster pump
Chris
 
than i dont need to regulate the pressure before the pump right?

just flow it right thru and reg only on the return

simple

and you dont need a expensive bypass reg to do that

don

ps - does make me wonder if the fuel circulating around inside the body causes cavitation, well, wrong word, but you know what i mean? pump would run cooler this way, over stock, and it would always be full of fuel, but i wonder if there are any negative affects of having the fuel flow thru the pump vs the stock way of basically dead heading it (the stock return is so small you can hardly consisder that a relief)
 
than i dont need to regulate the pressure before the pump right?

just flow it right thru and reg only on the return

simple

and you dont need a expensive bypass reg to do that

don

ps - does make me wonder if the fuel circulating around inside the body causes cavitation, well, wrong word, but you know what i mean? pump would run cooler this way, over stock, and it would always be full of fuel, but i wonder if there are any negative affects of having the fuel flow thru the pump vs the stock way of basically dead heading it (the stock return is so small you can hardly consisder that a relief)

Right, I run a overflow valve with my HPFP, returned through the stock feed line.

Some people say that feedin the front port on the p-pump can cause air bubbles, etc to get in there and cause you to have less fuel...personally, I don't know enough about pumps to say one way or the other...but I'll be feeding the stock port, and the stock return port, and then returning through the the front 18mx1.5 port!

Chris
 
mee too

gonna have hoses and fittings and crap everywheres

but at least i know the pump body will always be full

make it a great night

don
 
huh?

arnt those ports coming off of the number 1 delivery valve?

i am lost

please explain

thanks, don
 
never mind

i see it

was trippin

thank you very much for posting that

changes everything

i will feed it in the stock location, and probably only from the stock location as it looks like what ever you put in the front plug just goes out the return anyways

and return out of the stock return location as it is the highest point in the pump

thank you very much

don
 
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