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transmission jumping out of gear

willking1

New member
Gray marine 109 transmission jumps out of gear at approx. 1200 rpm. I can pull the throttle back to idle and increase and transmission will start pulling again and wont jump out until I get back to 1200 rpms..any ideas???
 
Preface;
I know next to zero about this 109 transmision, so these are questions for you, rather than answers!

Is this transmission using hydraulic pressure for clutch pack engagement?

If so..... perhaps at 1,200 rpm the oil pump is starving, resulting in clutch pack disengagement!

Is the oil level up where it should be???
Any reason to suspect transmission oil pump issues???
Any reason to suspect clutch pack issues???


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