lift pump & filter question

MooseMeat · **Posted:** Mon Oct 19, 2009 9:28 pm

When I do the lift pump do I have to do the filter at the same time?

Or can I just run the OEM for awhile?

RJM · **Posted:** Mon Oct 19, 2009 9:42 pm

No, but after you install it check for leaks as it will be under pressure instead of vacuum

warp2diesel · **Posted:** Mon Oct 19, 2009 10:01 pm

...with my lift pump, no leaks yet.

MooseMeat · **Posted:** Thu Oct 22, 2009 2:55 pm

Thanks.

Ws thinking it was OK but just wanted to ask.

Tinman · **Joined:** Mon Apr 10, 2006 10:45 am **Posts:** 308

Also remember your filtering efficiency of the stocker (or lack thereof) might go down. Efficiency is rated by pressure, the higher the pressure the less efficient. Going from neg. pressure to positive might let more stuff thru. I won't do it very long.

dgeist · **Posted:** Fri Oct 23, 2009 11:03 am

RJM wrote:

No, but after you install it check for leaks as it will be under pressure instead of vacuum

Happened for me. A few weeks after installing the lift pump, I started to notice diesel residue around the heater plug. Pretty good confirmation that was where the air was coming from in the first place

Dan

MooseMeat · **Posted:** Fri Oct 23, 2009 1:09 pm

So far my plug area has been dry. The last one leaked big time fuel actually would run down the side of the filter.

My fuel head is under pressure I have an electric fuel pump in the line, but once its starts getting cold out I start sucking air in from some place behind the filter head I think.

I posted a picture once but can't seam to find them.

lift pump & filter question

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