I replaced my SD40s with SD60s in June. I took them from Florida
and am now in NC and have about 200 hours on them. I am distressed to hear someone is having a clutch
slipping problem with them as that is why I replaced my SD40s. I retrofitted my drives to my existing 3JH3CEs rather than a full repower
. So far my only complaint is excessive vibration at certain RPMs. Vibration in rotating machinery is never a good thing.
What kind of props do you have and do you keep the engines in neutral or reverse when the engine
is not running. Are you aware of the warning in the manual to never leave the drive in forward with the engine not running? I have autostream feathering props set up for left hand rotation. I leave my drives in reverse when the engine is not running. Previous experience has taught me that if the drives are in neutral and the prop collides with a pot warp the prop is knocked out of the feathered position and it starts rotating which wraps the warp around the prop quite quickly. With the drive in reverse the prop can only rotate about 60 degree and the warp drops off. I got through Maine
and the Chesapeake this year without picking up one pot, but I digress. I use Rotella 15w40 oil
in my drives, what do you use?
My concern would be that simply putting in a clutch
kit might only have been treating the symptom not the cause of your problem. The clutch slippage might be by any number of issues such as a badly adjusted shifter or perhaps some other internal issue with the drive.