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

[Iagtroop]

What exactly is your trouble?

Pretty similar to what Luke said was happening with his machine.

I’ve got a new holland c175 with shibaura n844lt engine. Its idles great and revs up great but as soon as you put a load on it the rpms drop quite a bit and the machine struggles to go.
There is no black smoke which normally would happen if the engine was loaded down to the point of not being able to move.

I’ve tried adjusting the maximum fuel screw (as showed in the pictures above) and it didn’t seem to make a difference.

I’ve checked inj pump timing, fuel filters, compression, air filter

 

[Tyler d4c]

Are you getting good fuel flow to the injection pump

 

[Iagtroop]

I will check that fuel pressure and get back with you

 

[Iagtroop]

Are you getting good fuel flow to the injection pump

The gauge I have is meant for higher fuel pressure so it’s hard to read. But looks like I’m getting less than 5 psi. I’ll try a different transfer pump and report back thanks

 

[Iagtroop]

Are you getting good fuel flow to the injection pump

Specs for this facet fuel transfer pump are 4-7 psi but also says “typical flow 15 gallons per hour at 3 psi.” So I think I’m good on fuel pressure.
There’s no misfiring or white smoking, just a drop in rpm’s and loss of power