Rebuilt Pump, RUNS AWAY!

[dankcorey22]

Well that's the first I've heard of flooding a diesel... how did you manage to get so much fuel into your TDI?

11 mm IP and big PP764 nozzles and a RC5 tune u guess, That what a guru told me i was doing when that happened

[Rabbit on Roids]

Did you removed the pump head and plunger for the reseal ?

I removed the head in one piece if that makes sense. I didn't remove the plunger.

just to re-iterate, the head is on the back, with the 4 fuel lines exiting it. were you talking about the pump top? or the pump head?

its kinda hard to take the head out of the pump without taking the plunger with it..

[burn_your_money]

Can you explain this in more detail? Which sleeve? The sleeve from the centrifugal governor? Or the control collar "sleeve"? Fulcrum lever? I thought the max fuel screw acted as the fulcrum for the lever.

I am leaning towards the theory that I may have something incorrectly installed something related to the control collar which is why fuel delivery is taking place just fine but its just "wide open".

Sorry, the control collar sleeve is what I was talking about.

Fulcrum lever I was referring to the black piece that engages in the control collar and at the other end is pulled on by the governor assembly. It's held in by the 2 3 sided bolts.

If you take the top of the pump off you should be able to see if the collar is engaged properly, just wiggle the fulcrum lever back and forth

[kingler5]

Did you removed the pump head and plunger for the reseal ?

I removed the head in one piece if that makes sense. I didn't remove the plunger.

just to re-iterate, the head is on the back, with the 4 fuel lines exiting it. were you talking about the pump top? or the pump head?

its kinda hard to take the head out of the pump without taking the plunger with it..

Yes, I know the head is on the back. I meant I didn't purposely remove the plunger out of the head.

Slightly off topic, you know it's funny when I was putting back on the springs for the outside accelerator lever it only took me 2 minutes as opposed to 2 hours as it did the first time. You live and you learn. Now maybe if I could be as quick with drum brake springs.

Can you explain this in more detail? Which sleeve? The sleeve from the centrifugal governor? Or the control collar "sleeve"? Fulcrum lever? I thought the max fuel screw acted as the fulcrum for the lever.

I am leaning towards the theory that I may have something incorrectly installed something related to the control collar which is why fuel delivery is taking place just fine but its just "wide open".

Sorry, the control collar sleeve is what I was talking about.

Fulcrum lever I was referring to the black piece that engages in the control collar and at the other end is pulled on by the governor assembly. It's held in by the 2 3 sided bolts.

If you take the top of the pump off you should be able to see if the collar is engaged properly, just wiggle the fulcrum lever back and forth

I am going to pull the pump again to look at this. I know some have the guts to remove the top of the pump on the car, but I don't. Besides, I prefer working on the pump in a "laboratory" setting, i.e. indoors so if I need to actually pull the pump head again, I can do so at that moment.

[Rabbit on Roids]

im still thinking that the fuel control collar is just spinning free on the plunger, stuck in one position. the little hitch ball on the end of the governor plate (fulcrum lever) sits in a hole on the control collar to control fuel. it has to move back and forth on the plunger shaft.

and please dont take things the wrong way. only reason i was saying about the pump top and head is because if you and vince are talking about a certain part, you might as well be talking about the same part. internet diagnosis is already sketchy at best, so why complicate things by potentially not being on the same page..

either way, pulling the pump top while the pump is on the engine is completely possible. ive done it many times. ive gotten pretty decent at it too. governor mods take ~30 mins now..

[Grey_Smoke]

im still thinking that the fuel control collar is just spinning free on the plunger, stuck in one position. the little hitch ball on the end of the governor plate sits in a hole on the control collar to control fuel. it has to move back and forth on the plunger shaft.

There are people on here with much more experience than me, I think I might have had this problem, so here is what i did.
When I first did my pump, I got the hitch ball on the end of the governor plate down in front of the control collar, so it was stuck all the way open, I found the the easiest way to get it in the right place was to take a a putty knife, and hold the two springs back with it, then I could slide the governor plate in easily.  Hope that is helpful.

[kingler5]

I fixed the control collar back to the control lever. Now, I have a new problem.


For some reason, after A TON of cranking, I am getting no fuel getting to my injectors, it wont even leak out when I loosen the lines at the delivery valves on the pump and crank it.

Already checked fuel cut solenoid, pulled it completely out to test it and it worked fine, do hear it clicking. No fuel is leaking out of the pump anywhere, it is sucking in fuel nicely, there are still a few air bubbles in the lines, but this thing used to start and run great even with the same amount of few residual bubbles.

What sort of error could I have made when putting the pump back together for the 2nd time that would cause there to be no fuel delivery?

I did take off the pump head last time, but it is secured down tight again as I said and there are no leaks.

FRUSTRATED!!!!

[arnold]

Did you used the go pedal while cranking ? My bet : the max feul screw is out to far or maybe the throttle control lever is placed wrong.Or both...

[kingler5]

Did you used the go pedal while cranking ? My bet : the max feul screw is out to far or maybe the throttle control lever is placed wrong.Or both...

Yes I tried that. The max fuel screw is close to its original position, if not further in. The accelerator lever is placed correctly.

I don't see why any of that would cause no fuel coming out at the delivery valve.

[arnold]

Did you used the go pedal while cranking ? My bet : the max feul screw is out to far or maybe the throttle control lever is placed wrong.Or both...

Yes I tried that. The max fuel screw is close to its original position, if not further in. The accelerator lever is placed correctly.

I don't see why any of that would cause no fuel coming out at the delivery valve.

If the max feul is out to far it makes the control collar cover the hole in the plunjer completly,stopping feul from going in the pump head,try turning it in some more,every time i pulled the top of a pump i have to do adjustments on the max feul to get it running like before

[burn_your_money]

When you timed it did the dial indicator move normally?

[kingler5]

When you timed it did the dial indicator move normally?

Yes. It is timed correctly at 1.0 mm.

If the max feul is out to far it makes the control collar cover the hole in the plunjer completly,stopping feul from going in the pump head,try turning it in some more,every time i pulled the top of a pump i have to do adjustments on the max feul to get it running like before

The max fuel screw is screwed in as far as it will go with the factory collar on.

[kingler5]

I fixed the cause of my runaway, my control lever was indeed not seated in the control collar, and it could only bounce around at the hi-rev end, problem fixed, now I have a new problem.

Fuel will NOT come out of the delivery valves. My question is this: if there is a seal not quite tight enough, a couple of screws not tight enough, is it possible for the pump's internal pressure to to not be high enough to facilitate fuel coming out of the delivery valves? I thought the bulk of the fuel pressurization took place in the pump head with the action of the plunger? What is the normal internal pump pressure, and what is the breaking pressure of the delivery valves? Also what is the compression ratio, if you will, within the pump head?

[burn_your_money]

Did you take the delivery valves out at any time? (if yes, when)

How do you know you fixed the problem if the car does not run?

Is the collar on the right way?

[kingler5]

Did you take the delivery valves out at any time? (if yes, when)

How do you know you fixed the problem if the car does not run?

Is the collar on the right way?

Never took out the delivery valves.

You are right, I don't know yet, will find out in a couple of hours.

You tell me if the collar is on the right way, the side with the little tiny hole is facing the sprocket end of the pump.