D6D sleeve meter pump

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwiq2_TPxLfzAhXacn0KHcePD7oQFnoECAIQAQ&url=https%3A%2F%2Fbarringtondieselclub.co.za%2Fcaterpillar%2F920-930%2Freg00501-01%2Fsystem-operation-testing-and-adjusting-3304-vehicular-engine.pdf&usg=AOvVaw27RQ7GLnetQsxZDvFH7dqB

Hi,
hoping this link works---3306 is the same except for the 2 extra injection pumps.
Cheers,
Eddie B.

Eddie,

A huge thank-you to you for posting the information and detailed answers.......it is greatly appreciated!

best regards
Richard

Hey Richard, I know you travel an awful lot but looks like you're in Australia at the moment  LOL

It does seem that way sometimes, not knowing if I am on my a$$ or my head 😊

soooo........I am on the reassmbly phase of this now.....and I have it a snag.......I cannot get any diesel out of the injector ports, have bled the governer housing and the main box.
What I have found is the rack seems to have got stuck.
It was nice a free when I put it together, but on strip down looking for a fault it was well and truly stuck in the "off" position, then working it some its come free again.

The question is what causes them to go tight?

Hi Richard,
not sure I have come across this in a re-assembled unit--operating the rack/sleeve rod makes the sleeves slide up and down the plungers to pump more or less fuel or further to shut off position.
If all the tricky governor linkages etc. were assembled correctly without forcing anything nothing would have got bent or burred--burrs are an issue with these and basically everything we treated as being burred and so were checked and de-burred as needed.
Maybe the sleeves had some gum on them which solidified after cleaning and reassembly.
Fitting the pump elements back in all the while checking that the sleeves have engaged and stay engaged with their respective levers is tricky without the correct tools to hold and lower the elements into the main pump body bores and then screw the retaining nut in all the while checking the sleeves stay engaged and the barrel seats squarely.
I have seen units where rough handling at this stage can result in broken plungers or burrs on the working surface/s of the lever to sleeve causing tight operation until the burr is worn some to allow easy movement.

Will think on it some more but I am remembering back some nearly 20 years now since I worked on them.

Cheers,
Eddie B.

Thanks Eddie.

We didn't take the plungers out, just pulled the governor housing off to reseal the throttle spindle.

As you say that rack/sleeve rod goes up and down the plungers, what i noticed was that there was some fore-aft movment, but was tight in the up/down plane.....almost as if it was sticking on an injector barrel....but we got it free, it springs up and down nicely now......as it did when I first worked on it. I have reassembled it again less gaskets (they are on order) checking freeplay with every turn of the bolts, still seems ok.....which was how it was last time.

just to update on today's findings......I was at the machine this morning, as mentioned before its not running, just reassembled less gaskets and stood overnight. Looking in thru the pump side cover aperture and working the lever the up and down movement of the sleeves got progressively stiffer, to the point where moving the stop control to the run position the rack stayed where it was.