[tank140]

Hi all

Just a quick question

what would be the concerns with starting a Cummins ISB 5.9 24 valve that has been stood for about 4 years doing nothing.

I have changed the fuel filter, got the transfer pump running all the realays kick in as they should, the VP44 pump has power.arty018:

but when I crank the engine and crack the injectors there seams to be very little pressure from 1,2,3,4,5 but 6 back squirts like a good'n, she wont fire, may be the fuel lines need a clean from the VP pump to injectors, there is fuel at the return line at the rear of the head, she cranks at a good speed
don't know if there are any fault codes as I don't have a reader.:confused013:

any suggestions?

cheers
tank

 

[me78569]

What year truck is it?

Search for the Key trick on here and you should be able to get some of the codes without a scanner.

However if you aren't getting any fuel to the first 5 then I would look at the VP for issues.

 

[mthomp1]

Why did it sit for those four years. Possibly because the injection pump stopped working as it should? That's the first thing that came to my mind.

 

[smokin_dodge]

Did you prime the lift pump at the VP44 fuel inlet?

Have you checked your fuel pressure at the schrader valve after bumping the motor?

 

[ncsucarjock88]

How long did you crank it over to determine that it won't fire??

When these trucks are really out of fuel, it takes an amazingly long time for one to fire up. I had mine all apart this summer, and even after getting fuel at each injector, it still took a heck of a lot of cranking to get it to fire. Probably close to a solid 10 minutes of actual crank time, with rest periods in between.

 

[Johnnysspaceship]

How long did you crank it over to determine that it won't fire??

When these trucks are really out of fuel, it takes an amazingly long time for one to fire up. I had mine all apart this summer, and even after getting fuel at each injector, it still took a heck of a lot of cranking to get it to fire. Probably close to a solid 10 minutes of actual crank time, with rest periods in between.

Should not take anywhere near 10min of crank time.

Crack injector lines 1,3,5 and bump so the lift
Pump runs for 25sec, 3 or 4 times. Crank for 10sec at a time only! Do that a couple times, bump the lift pump again. Should start after 4-5 cranks. Feather the fuel once you get injector lines tight.

To the op. hope you changed the oil n coolant before trying to fire this thing. After it coming out of 6 did you tighten it and try again?

 

[ncsucarjock88]

Jonny, that has been my typical experience after replacing 3 VP44's.

When I pulled the engine though (and all lines, VP, etc, etc) - I did that. Cracked all five (not #2), got fuel, tightened them down, leaving one and three open until it coughed, and tightened one and three.

Seriously thought that it was going to drain both batteries, and would not start. Really had me worried, given the depth to which everything was apart.

I don't know why it took so long. It was certainly close to starting, but apparently there was enough air somewhere that it just couldn't quite make it. I tried bleeding lines again, and got nowhere with it.

Probably took close to an hour to actually get it running.

When I did, it went into high idle immediately, and stayed there for well over 30 minutes. Guess the ECU was quite ticked at how low the battery voltage had gotten. Cranking never slowed, but I certainly drained a crap-ton out of those batteries.

Once it got running, all was well, and has been well. Just a real bugger to start the first time after it'd all been apart.

I agree - very abnormal - and I've never had it happen prior. But, apparently, it can happen.

 

[Johnnysspaceship]

Here was my 53 swap to m6. Engine was from a junkyard shipped cross the country. Obviously had been sitting a longgg time. Diesel was yellow. Drained the whole system dry. This is the first crank video. Probably cranked for 30-40sec all together. Started in 2min.

99 dodge cummins 53 block swap first crank - YouTube

 

[tank140]

Hi All

Got the Cummins 24 valve running last nightarty018:

sounded like a bag of for about 30 seconds then she settled down and purred like a :drool2:

what I did was slacken all the injector lines at the head, cranked it over to get and fuel out of the lines, made sure all the lines where tight cranked is again with a shot of START YOU ******* and away she went like I said it sounded rough for a bit but after a couple of dabs on the accelerator she settled down and ran sweet :thumbsup:

thanks for all the comments :thumbsup: ill post the conversion as I go with fitting this Cummins into my land rover.

thanks

TANK

 

[ncsucarjock88]

Glad you got it running.

Johnny, our methods are the same. I got to the it was coughing stage, and just wouldn't catch. re-loosening lines, priming system again, I dunno - nothing seems to want to work. It was close, but not enough to run. Finally cranked enough to get going again.

Cummins in a land rover would be sweet - specially an old school one.

 

[Lowsdime]

Is there's a sticky on priming the fuel system on here?? Congrats on getting it up and running!


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[jacegreiner11]

A sticky on priming the fuel system would be very helpful

 

[ncsucarjock88]

No sticky. I have a FASS 95, I run the test cycle (bump starter) 2-3 times. Then I crack the line at the inlet of the vp44, and turn the key on, and be sure that fuel flows out - retighten that.

Crack 1,3,4,5,6 (you can skip 6 unless you've had the lines completely dry - it's a bear to get to).

Once those are loose, crank engine over until you get fuel out of them. Tighten each one as fuel appears.

After you've gotten all that done, then you can prime the VP44 again with a bump of the starter, and let the fuel pump run 25 seconds.

Then attempt starting. While you're cranking, move the accelerator pedal between idle and WOT. It'll probably catch and cough, and may do this several times before it starts. Once it starts, it will run very roughly. Be sure to add throttle to get it firing on all 6 cylinders. Check for fuel leaks once running smoothly (and whatever else you've had apart).

 

[Lowsdime]

Nice description!! I'm sure that will be helpful to those of us I.e me that are to to cummins


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[DriftDodger240]

Yea I ws going to say prime the system very simple always keep a 3/4 in your truck haha makes me nervous everytime I let my girl borrow my truck, tell her keep fuel in it! Glad you got her running.

 

[Johnnysspaceship]

Crack 1,3,4,5,6

I always just do 1,3,5 n don't have any problems.

 

[Sportfury70]

Cummins in a land rover would be sweet - specially an old school one.

+1!

OP, which Rover is it? I have a '99 P38, was just thinking how awesome it would be with a cummins.

 

[tank140]

+1!

OP, which Rover is it? I have a '99 P38, was just thinking how awesome it would be with a cummins.

Hi sportfury

My land rover is a high bryd it is a 1985 style defender 142 it has a GMC 6.5 TD in it at the mo but I am going to plant this Cummins 24 valve in it a bit mot reliable than the GM.

I will start a thread when I start the build.

cheers
tank

 

[Sportfury70]

Nice! Those Defenders go for a pretty penny this side of the pond. Ill def be looking for that thread.

R/

 

[Link cummins]

Vp trucks are always a pain in the !