Archived VP44 Urgent

[rabsyeeha]

Fuel Pump - No Start

Hi again. After a cross county trip my VP 44 finally gave out, or so it seems by the shops's computer (I did not read the codes properly), with 170K on it. The first time she started back up and ran for a day, now want even start. The fuel pressure reads fine, though, and I'm not exactly sure how it's possible, if someone could shed light please.

The local shop (towed to) quoted $500 or so for labor, I ordered the pump already from Midwest Fuel.

I know I can do the replacement myself, but past experience shows a more competent direction will be very helpfull. If anyone in Southeast Wisconsin area would like to get together for a brief garage party, or just a beer and bbq to get 'er back on the road, I would be gratefull, and return the favor when possible.

Thank you for any advise and comments.

 

[ROADWARRIOR]

When you say your fuel pressure reads fine, I assume you mean the lift pump fuel pressure. This shoulds always be at least 10psi with 13psi being optimal. You can have a dead Vp44 and still have good lift pump pressure. The lift pump is a seperate pump and is located on the driver's side of the motor under the fuel filter area.



There is a very good set of VP replacement instructions on this site, try doing a search for them. When doing the swap, you need a small gear puller and be careful with the key for the pump shaft.



Dan

 

[monkeyman]

Its not hard, taking off all the injector lines is the biggest pain. I glued key in with super glue as it can fall out easy. Should not take you more than two hours with proper tools.
Rick

 

[John - K5AWO]

Check this thread for some help
Injection pump R&R video - VP-44 - TDR Roundtable

 

[rabsyeeha]

Thank you all for the replies. I got the links and directions from past postings, awesome resources. Just waiting on the new pump, and will get rolling shortly after.

 

[DCreed]

not sure of your year but always a good idea to tab KDP if able while the cover is off. also I hear the cam sensor is a good idea as the pump must be removed to do it, and with 170k...

 

[WDimig]

not sure of your year but always a good idea to tab KDP if able while the cover is off. also I hear the cam sensor is a good idea as the pump must be removed to do it, and with 170k...

i dont think he needs to be pulling the front gear cover to do the pump. just make sure that the keyway is facing straightup before you take the pump off, go slowly, while your installing the pump, check and double check that the keyway is lined up with the gear, on the backside of the gear housing where the pump is mounted, while your installing the pump, you should be able to see a very brief glimpse of the keyway coming into contact with the gear before you loose sight of the gear and shaft, watch that, if it's not right, pull the pump back, and spin the pump the directon it needs to go to line up with the gear. the pump shaft nut get's torqued to 125 ft. lbs. they arent that bad after you have done 50 or so:-laf. good luck hop everything runs a ok.



wes

 

[Joe Mc]

I have that video saved in my favorite sites. As Fog Horn Leg Horn said "I keep my fethers numbed for just such occasions". Good luck and have fun. Oh while you are waiting for the pump make sure you get the gear puller outlined in the video - you'll definitly need it. Maybe someone close to you has one they could lend you?

 

[rabsyeeha]

Thank you for the links and resources. A buddy and I installed the new pump yesterday, and it went pretty smooth. I think dropping something down that cover was the most stressfull part, otherwize it was actually a fun job. Took us about 4. 5 hours, with step by step directions. The videos are awesome, by the way.

I'm not sure if any air is left in the system, but the fuel pressure shows about 10 now, from the original 13 or so, immediately after install. It seems to be much more stable and consistent, though.

The number 6 injection line was kind of buger, so we decided to try leaving it in the block, and working around that set of 3 lines. Worked pretty well. There is enough clearance to move the pump as needed, just keeping track of where the lines are and moving them a bit.

Just curious if there is any reason why the fuel coming out of the lines and old pump would smell like gasoline. I backtracked all my steps, (and those of the shop where she sat for a few days), and am pretty positive that no one put gas in there. Wandering if an additive would do that?

Thanks again.

 

[Joe Mc]

Ah???? Gasoline smell May I suggest draining the tank and starting your new $$$$ VP off with a fresh (forsure!!!) tank of diesel fuel and , , , a locking fuel cap. I put one on mine after I first got it "just in case" wifey borrowed the truck and decided to fill er up for me. She has her own set of keys for the truck, of course minus the fuel cap key. I try to think of every possible thing - do I wire tied a fuel key up under the frame - "just in case" . . .

 

[rabsyeeha]

Joe, I had one too. That locking cap is going on now. I had less than 1/4 of a tank at the time of install and that part was diesel for sure. I topped her off already with a full fresh tank of diesel. I can only speculate as to some of the places I filled up before, and their storage systems. Thanks.