2nd gen lift pump

[DoWhat?]

I have one, what do I need to make it work?

[mprmn08]

a spacer, 2 gaskets, the line to block sealing washers, the fuel line from the pump to the filter and a die grinder to take some of the insulation off. i think thats it.

[BobS]

Wrong pump with incorrect pressure. You will need a bypass regulator to control the inlet pressure to the injection pump.

[DoWhat?]

Can I pull all that crap of of the 2nd gen motor? I've heard you can change the spring to correct the pressure, anyone got a part number for that?

[jake_evans]

?. Any one have an answer to his question?

[MMeier]

http://1stgen.org/viewtopic.php?t=7111

[Firstgenfanatic]

I've heard you can change the spring to correct the pressure, anyone got a part number for that?

I am wondering the same thing! I have a 2nd gen lift pump and want to swap out the spring to make it a VE friendly low-pressure pump. I have read the thread on here concerning piston lift pumps..........no real answer to the question.

[lectro_static]

From what I gather the one guy who swapped springs had BOTH pumps so I dont think the pump is considered a "serviceable" unit. But if you could find a rebuild kit for the other pump it should have the spring in it. On a side note the 2nd gen lift pump is very usable on our trucks you just have to run a boost ref. regulator. While those arent cheap it would make for a better overall fuel system IMO.

[Firstgenfanatic]

From what I gather the one guy who swapped springs had BOTH pumps so I dont think the pump is considered a "serviceable" unit. But if you could find a rebuild kit for the other pump it should have the spring in it. On a side note the 2nd gen lift pump is very usable on our trucks you just have to run a boost ref. regulator. While those arent cheap it would make for a better overall fuel system IMO.

Yeah, I do realize that I have the option of using my 2nd gen lift pump and just regulating it. I would really like to see pictures of 2nd gen high pressure lift pump installation with regulator. Pictures really help...........

[lectro_static]

Great write up by BC847 http://www.dieseltruckresource.com/dev/say-ref-piston-lift-pump-t176472.html?t=176472

Has some pics and REALLY shows the difference between the two pumps

[Remps]

What y'all think about loctiting the front seal, and just running the 2nd gen piston pump W/O regulator?

[ahale2772]

i have a picture of my set up let me see if i canget this to work...

[ahale2772]

wooo! finally got that to work as u can see its not pretty (whole set up is from parts i found when cleaning the shop) but i have 3/8 parker line running from my tank to the pump then 3/8 after the regulator to a banjo bolt / fitting i found, the boost line runs from a fitting off the side of the head and the bypassed fuel is "t"'ed into my return line works good keeps a steady 15 psi and 20 ish when i really stomp on it

thats my truck by the way (never got the picture thing to work before)

[MMeier]

getting confued quick here ........ the 6320 or 702 pump is the low pressure piston pump that does not require a seperate regulator, correct ?

[lectro_static]

getting confued quick here ........ the 6320 or 702 pump is the low pressure piston pump that does not require a seperate regulator, correct ?

The 6320 pump does not need a regulator it is a low pressure pump but also has a smaller piston so it moves less volume. Seems to have a different PSI on different trucks. Im sure that is a direct result of how each truck is set up. The 2nd gen pump puts out a higher pressure then we need so with a pressure regulator each truck can set the pressure to where they want it.

Hope that makes sense, basically the 6320 is a huge upgrade to stock and the stock 2nd gen pump is an upgrade to the 6320.