Engine/Transmission (1998.5 - 2002) Lift Pump

[lukesdiesel]

If you needed a LP on a tight budjet and already had the Vulcan Relocation kit which bump would you prefer?



Holly Blue or OEM from Cummins?

 

[Cummins724]

If you needed a LP on a tight budjet and already had the Vulcan Relocation kit which bump would you prefer?



Holly Blue or OEM from Cummins?

Holley blue for sure..... they are available at Advance Auto for $110. & usually on stock. They are good reliable pumps & supply good pressure/flow to keep the vp happy. You'll just need to get the fittings to hook it to your hoses & you are gone.

 

[lukesdiesel]

Ya can get a good deal on a Holley Blue. What fittings do I need to get to connect the pump to the kit?

 

[Joe Mc]

For $119 you can get just the Walbro 391 pump, for another $20 you get the 392.



http://www.glacierdieselpower.com/dept.asp?dept_id=07-001

 

[ERuhl]

For $119 you can get just the Walbro 391 pump, for another $20 you get the 392.

Which of course if used alone would damage the VP, so don't forget the 3-port pressure regulator and extra return line. Hardly appropriate for someone on a tight budget don't ya think?

 

[ChrisOlson]

Funny how all the extras get left out



or you can get the new campagian? lift pump



from here for about 150. 00



http://www.hoeslidiesel.com/specials.htm



this lift pump and the frame rail relocation



seemed to work best for me.

 

[lukesdiesel]

I can get a brand new Holley Blue for $75... ... Can't turn that down... Just need to know what other fitings I would need with my Vulcan Kit to connect to the Holley.

 

[Cummins724]

I can get a brand new Holley Blue for $75... ... Can't turn that down... Just need to know what other fitings I would need with my Vulcan Kit to connect to the Holley.

You will need 2 barbed fittings [nipples] in the size of your line. I'm not sure, but I believe the vulcan kit uses 3/8 hose. The fittings are usually available from your local hardware store. I got mine at Lowes.

 

[wcoomes]

Before you buy that Holley Blue, did you see this post?



https://www.turbodieselregister.com/forums/showthread.php?t=177147&highlight=holley

 

[Cummins724]

I ran a Holley for 2 years with no problems at all... ... . I just don't believe that the holley can't handle diesel. It would actually lubricate better than gas. A Caterpillar tech from Beckwith works on the fire truck here in town & said that the holley blue is the best pump for the diesel engines & has proved to be most reliable. The fire truck has had the holley pump on it for 4 years with no problems at all. Bullydog uses it in their "Big Fuel Kits" for the cummins too.

 

[Joe Mc]

Which of course if used alone would damage the VP, so don't forget the 3-port pressure regulator and extra return line. Hardly appropriate for someone on a tight budget don't ya think?

Absolutly correct - Thank you for the correction.

 

[Ncostello]

Cummins724... what engine does the firetrucks have? I'm assuming they dont have the ISB5. 9 which requires the lift pump to be on 100% of the time. Most bigger diesels only require the transfers to run for 30 seconds upon start up then they are off the remainder of the time. Which leads to long life on the pumps. Also firetrucks won't see the hours/miles of OTR trucks. Some do... but only in the busiest of stations.

 

[Cummins724]

Cummins724... what engine does the firetrucks have? I'm assuming they dont have the ISB5. 9 which requires the lift pump to be on 100% of the time. Most bigger diesels only require the transfers to run for 30 seconds upon start up then they are off the remainder of the time. Which leads to long life on the pumps. Also firetrucks won't see the hours/miles of OTR trucks. Some do... but only in the busiest of stations.

The truck has a Cat. 3408 [I believe] & I understand your point, but it is wired to the battery ignition hot & runs constantly. There is always diesel in the pump even while it sits in the shop & if diesel hurts these pumps... . I can't see how, but wouldn't we see a problem? I understand your point that it don't run as often as a street truck, but I was only stating that we have not seen a problem with diesel hurting this pump in anyway. I couldn't believe my eyes when I climbed under the truck & saw a Holley pump..... the tech from Beckwith said that Holley pumps are all they run on their Cat machines, commercial trucks [which see more miles than any of our trucks]. When they replace the stock pumps.

 

[steved]

Sort of as a guinnea pig, I am using a Summit Racing-branded pump (like a holley blue) that ran me $85 a month ago... so far, it hasn't had any issues acting as a transfer pump...



steved

 

[lukesdiesel]

I will try the Holley until I can get myself a FASS. Business has been slow or I would have already had a FASS Pump. Thanks for the Info guys!!!!

 

[VIPERBLUELX]

Does the Holley Blue require a regulator? How much fuel pressure does the Holley supply compared to stock?

 

[steved]

Does the Holley Blue require a regulator? How much fuel pressure does the Holley supply compared to stock?

Shouldn't... it maxes at 14psi IIRC...



steved

 

[Cummins724]

Does the Holley Blue require a regulator? How much fuel pressure does the Holley supply compared to stock?

The holley pumps come with a regulator in the box, but it is only for gas engines that require less pressure to run. You don't want to use it on a diesel. I've hooked up many of these pumps on stock & modified trucks & here is the average pressure we saw. A 98. 5 bone stock truck got 14psi idle... 12wot. 98. 5 w/edge comp on kill got 14. 5 idle..... 11 wot. My 99 with 100hp injectors, edge comp on kill got 14 psi idle... . 7 wot. 98. 5 with Holley blue pushing to stock lp got 23psi idle..... 15wot with edge comp on kill. Hope this helps.

 

[lukesdiesel]

Do you think it is worth the extra $$$ for the Big Line Kit compared to the Relocation Kit?