New Holland skid steer with N-844 Shibaura engine governor adjustment

[tractormech]

Does any one have an actual manual on the procedure to adjust the governor linkages on this engine? I can't find what I need. I rebuilt the engine and it's got a hatd start isdue and the linkage has to be at full throttle for it to fire. The only thing changed is a new gasket on the timing cover. Everything else is the same. No swapping of parts. Thanks.

 

[Welder Dave]

Sounds like it's not getting enough fuel.

 

[B&B]

Does any one have an actual manual on the procedure to adjust the governor linkages on this engine? I can't find what I need. I rebuilt the engine and it's got a hatd start isdue and the linkage has to be at full throttle for it to fire. The only thing changed is a new gasket on the timing cover. Everything else is the same. No swapping of parts. Thanks.

I just rebuilt one, the manual I borrowed is for a perkins but it has all the adjustments in it. I'll post some pics of the procedure if I can remember tomorrow

 

[thepumpguysc]

Do u have access to the injection pump control rack thru a removable panel in front of the pump.
If so check to see if the rack is going to “full fuel”..
Another thing to check is: IF the pump has an electric shut off solenoid, has it been damaged.??
A LOT of people don’t know that U HAVE TO remove it FIRST, before trying to remove the injection pump.
And they end up damaging either the solenoid or the control rack, not allowing the rack to move freely to the starting position..
Give it a look before you start screwing screws..
Good luck

 

[Tyler d4c]

Theres a spring that pulls the rack to full fuel when its not running and the shut off is powered up. Any how if its not there it will do exactly what your discribing.

 

[Tyler d4c]

No. 26 in the picture. Hooks to the link that goes to the inj. Pump and to the timing cover. It will pull the link towards the flywheel. Timing cover will have to be removed to install it.

 

[Tyler d4c]

As the name implys

 

[B&B]

Does any one have an actual manual on the procedure to adjust the governor linkages on this engine? I can't find what I need. I rebuilt the engine and it's got a hatd start isdue and the linkage has to be at full throttle for it to fire. The only thing changed is a new gasket on the timing cover. Everything else is the same. No swapping of parts. Thanks.

 

[B&B]

View attachment 338939View attachment 338940

Does any one have an actual manual on the procedure to adjust the governor linkages on this engine? I can't find what I need. I rebuilt the engine and it's got a hatd start isdue and the linkage has to be at full throttle for it to fire. The only thing changed is a new gasket on the timing cover. Everything else is the same. No swapping of parts. Thanks.

The n844l is a 404c22 perkins for all intents and purposes

 

[tractormech]

I just rebuilt one, the manual I borrowed is for a perkins but it has all the adjustments in it. I'll post some pics of the procedure if I can remember tomorrow

Ok thanks a lot

 

[tractormech]

Theres a spring that pulls the rack to full fuel when its not running and the shut off is powered up. Any how if its not there it will do exactly what your discribing.

Thank you.I'll check that out

 

[Luke bunton king]

I have a new holland ls170 with a possible governor related issue.
The machine is low on power and bogs down when under heavy load e.g going full ahead in soft sand or up a hill. If you come back on the sticks the revs pick back up.
I have changed all the filters, checked the fuel pickup etc and the turbo is making boost.
There is no smoke when the machine begins to lose power. To me this would indicate under fueling? The machine starts and runs well otherwise.
It does not feel like the governor is bringing in more power/fuel under load. Is it possible this is an issue with the governor or should I be looking somewhere else?

 

[thepumpguysc]

Personally I would either put a psi gauge off the filter head or just replace the supply/lift pump…
Have u made sure your getting full travel on the throttle lever.?
Make sure it’s hitting the stop screw.. I don’t think u have to start the engine for that test..

 

[Luke bunton king]

The throttle is touching the stop. What pressure should I see at the filter?
The lift pump seems to be flowing well. I can fill a jerry can with it quite quickly. Is there any way to confirm governor function without pulling the cover off?

 

[thepumpguysc]

You’re looking for 6psi at full load..
The thing about the supply pump is, it will read fine at low idle and part throttle but it can’t keep up the demand at full load.. THATS where a gauge comes in very handy..

The only thing u can tell by pulling the cover off is, if its rusted..
I’m assuming u have a Delphi inj pump.??

 

[Luke bunton king]

Not sure on the brand of pump, I will look into fitting a fuel pressure guage.

 

[thepumpguysc]

That’s a PFR injection pump..
Not a Delphi..
It has a separate governor..

 

[Luke bunton king]

From the manual the governor is in the front timing cover

 

[Iagtroop]

From the manual the governor is in the front timing cover

Did you ever figure this issue out? I’ve got something similar going on and I’m thinking it’s a weak/stretched governor spring

 

[Tyler d4c]

Did you ever figure this issue out? I’ve got something similar going on and I’m thinking it’s a weak/stretched governor spring

What exactly is your trouble?