Engine/Transmission (1994 - 1998) governor problems...

[98rammer]

any idea how suddenly the "collar"/rod thing that the governor springs go around gets bent? one set of springs is a pita to put in and take out. the throttle is stuck at 1500 rpms right now (see my 911 post).



Tom

 

[Joseph Donnelly]

That should never happen. Either there is a bind up somewhere or the weld is coming loose. Take the pump to a good Bosch shop and have them remove the weight setup. Don't try it at home.

 

[HoleshotHolset]

Tom: What did you do to your pump?



Matt

 

[98rammer]

well, it's at cummins right now, but they send it to a local shop to have them rebuilt. that's what they said needs to be done. somethings wrong with the governor or something inside. $1000-$2000 to rebuild it. i don't have that much money on me, and the 'rents aren't looking to pay much (college very shortly). i'm going to go talk to the rebuilding diesel place tomorrow and find out anything i can. i'm probably going to take the truck home too (maybe loosening up on the governor springs can get the idle down some, though i doubt it at this point).



Matt, i did nothing. it pulled a little harder than normal when running down a hill when i hit the brakes... hit it to neutral and all of a sudden i'm running at 1500rpms it's NOT the cable or linkage, it's definately internal. the arm on the backside of the pump runs smooth, has breakover, and the idle stop is down allthe way (never touched). this came sudden, no prior warning. my mods are the typical that are on the pumps. too much pressure from the flat plate maybe?



Joe, the weight setup inside the pump you think is binding up? weld? my dad's a welder, but i don't want to take off that pump. the whole timing thing with removal and installation (especially of another maybe used pump) scares me.



if you have any suggestions, call me asap at 207-883-3812. i can call back so you don't pay for the long distance. need some help here!



searching for possibilities. .

thanks,

Tom Pulyak

 

[HoleshotHolset]

Tom: Taking the P-pump off is a little labor intensive and takes a while... but if you take the pump off and put it back on yourself, you'll learn a crapload and save a boatload of dough since the pump shop doesn't have to haul it in/out. It's not all that tough... and if you need to borrow tools, let me know.



I'm curious what the pump shop says is wrong with it.



If you haven't found a Bosch shop capable of doing P-pumps near you... . you can do an internet search for Bosch diesel service centers nearest your location up in the heart of lobstah country.



Keep me updated... I want to help out and hear the outcome.



You said that the 'post' that all the governor springs/seats sits on was bent? What about the 'other side'?... . Was that bent too?



Matt

 

[98rammer]

yeah, there's a local shop (connell diesel or something like that) that cummins ships the pumps out to.



the other set of springs goes in and out in 10 minutes. that 1 set though goes in hard and comes out hard (the springs are almost overlapped into each other so you can't pull them straight out w/o binding). the retainer doesn't screw in too easy either (don't know if it's possibly cross-threading or just the springs, my dad was the one doing most of the work).



i don't have a problem pulling the pump myself, but i don't have all the necessary tools to do so. i do have the big dodge manual though.



joe, should i not even touch the inside of the pump?



i'm on my way back to my house now. i'm at a friend's since that computer is down. give me a call to talk further.



thanks a ton!

Tom

 

[HoleshotHolset]

Sounds to me like more investigation is necessary..... I just hate to see you spend all kinds of bread at Cummins and the pump shop if it's something simple.



I have no idea how that thing came loose... . but it sounds like the bad side came a little too loose and now everything needs to be taken out... checked out and put back in.



Matt

 

[Joseph Donnelly]

Tom, call me at 7pm Pacific time 702-565-9566 or I'll call you at 8 pacific when cell minutes = free. If you take off the governor housing, it is real hard to get it back on with the linkages right. If you mess with fueling stuff like plungers and delivery valves, you have to be totally clean as clearances are in millionths of an inch.

 

[bighammer]

I wouldn't take apart any of the pumping part of the pump. Not sure you would get very far anyway, but you wouldn't be able to set any of it on re-assembly. Besides, if the truck is runs, it pumps. It sounds like the problem is the governor weights and/or springs and the associated linkage. Maybe a pivot pin came out?



Would a cutaway view of the internal governor stuff help? Its not great, but it shows what is cnnected to what. Send me your email address and I can send it to you.

 

[Jim Fulmer]

Taking the P-pump off is a little labor intensive and takes a while... but if you take the pump off and put it back on yourself, you'll learn a crapload and save a boatload of dough



Dang I didn't think it was bad, not like torqing the head studs stud.



Jim

 

[98rammer]

well, i talk to joe last night and i'm more confident in taking the pump off. next step though is to go to some local pump shops and get some ideas and prices. i'll get the truck home today and maybe play with the governor springs, but i doubt it's them. probably the weights?



thanks a bunch

Tom

 

[HoleshotHolset]

I'm not 100% convinced you even have to take the pump off the truck yet..... at least not until somebody who knows what they're looking at verifies that your governor springs are where they are supposed to be and so forth... .



Did you call the man in Canada yet?



Matt

 

[98rammer]

i didn't get the truck yesterday, they were giving me the run around. (i checked, and the inatek horn was off). they'll need to charge me for looking at the truck and veryifiying that it's the injection pump. if they slam with a $200 bill today, then there will be hell. i'm fed up with the local cummins dealer, i will be buying my filters and parts elsewhere



matt, i'll play with the governor springs today when i get the truck home. no, i didn't call piers yet.



Tom

 

[HoleshotHolset]

Call Piers! He may have run into something like this before... .



Let us know the outcome... .



Matt

 

[98rammer]

4. 4 hours to look at the pump. . but they'll charge me for 3 hours at $232. how in the world does it take 4. 4 hours to look at the pump and say: "you need it rebuilt" ?

 

[HoleshotHolset]

It takes a while to properly tear it down on an absolutely-positively clean pump bench.



Remember - a good pump guy (especially one that knows how to properly turn up a pump - and is willing to do it) is worth his weight in gold.



Matt

 

[98rammer]

well, i've called around to some bosch certified pump shops and they all say it's probably something wrong with the governor. a pin has bent and is pushing against the weights or something along those lines. or the rack stop is jammed forward (arm moves fine inside the pump though). i'm deciding whether or not to take the pump off this weekend. i'm fairly confident in doing so though.



thanks for all the help!

Tom Pulyak

 

[98rammer]

oh btw, one of the guys said that there's a possibility of camshaft lobe being damaged. although rare, he's seen it happen a couple times.