Hi guys,

Was working the old girl yesterday on some iron pines that have a pretty good root ball system and it just seems that the old girl just does not have the pushing power she should.  I am thinking torque converter and or filters to check.  All fluids are great.  The engine is running very well but it seems that when I am up against a tree trying to push over the engine does not come up to full or half RPM.  When I was pushing before she was a beast now she is a bit wimpy... Any suggestions or do you believe I am on the right track?  Thanks guys hope everyone is well.  George 

Hello George, better to send us a video so we can hear what it is or is not doing.

as Rome suggested, a video would be best....we like videos..

-since we're talking diesel power, my first wild guess would be fuel system....lack of fuel...fuel restriction of some type, lines, filter(s) etc...

High idle rpm is 1455 +-30 rpm, 475 +-10 rpm, set decelerator at 700 +-50 rpm
I take it you already checked the rack and fuel pump lifter settings? If I remember that was an ordeal.
Fuel pressure good?
Check rpm at hour meter, that is half engine speed, or use a laser tach.

Fully depressed, neutral.

I will be taking some video later today... Actually my wife will.... Yes, the rack was the first problem and then the rest.... Fuel pressure looks good starts right up... I am thinking maybe decelerator lever as engine just does not come to life with throttle fully open and decelerator engaged. When I lift my foot back engine does increase RPM of course in Forward 1 she moves and all just hard to get engine winding up. Thats why I thought torque converter first... I will take videos and post later today. Remember this is Hawaii so expect them tomorrow...

How much oil in the converter case after shut down? There should not be much, if it is flooded it will act like a brake. This can be caused by converter failure, or scavenge pump failure or a blockage. Take a bucket underneath, you should only get about a gallon if all is ok.
best of luck, Wombat