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Discussion Starter · #1 ·
2 seasons ago I rebuilt this transmission in my shop. I installed a lube pressure gauge in the dash. I get about 15-20psi on startup then as the oil warms up itll drop to about 8-9psi while working. Depending what range I'm in. Ranges 2 and 4 must spin the pump a bit faster than 1 and 3.

Anyway, with the oil warm when I idle down my pressure is down to about 3psi. I'm not sure if this is getting worse than before. Maybe I'm just paying more attention to it.
The hose for the gauge comes off the very top rear bearing of the transmission.
The transmission light doesnt come on. So without the gauge I'd have no idea.

Is this too low of pressure?
My first thought is to put new oil in the unit.

Any advise?
Should I be worried?

Thanks,
Rod
 

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Discussion Starter · #3 ·
My 850 versatile pulling the NH3 rig shows 10psi hot while working at 1900rpm and 5psi hot idle. Me thinks I better order another pump for the 975.
 

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Discussion Starter · #6 ·
Well pressure is slowly getting worse at an idle. Down to 1psi hot. Still 8-9psi while working.
The pressure light still doesn't come on with 1psi on my gauge. As soon as I release the clutch it comes on.
I'm ordering a pump first thing in the am. Will update pressures with a new pump.
 
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