Hi there I need some help to determine if my outboard is still in good shape (2012 model, 200hrs). Today I started it up with the water muff on only to get the high temp alarm before the tell tale start squirting water, so I turned it off right away.
I checked the thermostat, all open (warm) and bone dry. So I dropped the lower leg, only to see the impeller and pump is toast. More concerning was the puff of smoke at startup and the oil droplets in the exhaust. I'm concerned the motor overheated at some point.
I would like to do a compression test, questions are:
Can I crank the motor with the lower leg off to do the test? Will anything happen with the gear selector pin or something else moves and prevent me from getting the leg back on?
Or should I consider a leak down test?
If oil enters through the exhaust what will the plugs look like? Wet with oil? Carboned up?
Also is the "narrow" section suppose to be there in the drive shaft?
I ordered the service manual for the motor, just waiting on delivery.
Thanks for the help.



I checked the thermostat, all open (warm) and bone dry. So I dropped the lower leg, only to see the impeller and pump is toast. More concerning was the puff of smoke at startup and the oil droplets in the exhaust. I'm concerned the motor overheated at some point.
I would like to do a compression test, questions are:
Can I crank the motor with the lower leg off to do the test? Will anything happen with the gear selector pin or something else moves and prevent me from getting the leg back on?
Or should I consider a leak down test?
If oil enters through the exhaust what will the plugs look like? Wet with oil? Carboned up?
Also is the "narrow" section suppose to be there in the drive shaft?
I ordered the service manual for the motor, just waiting on delivery.
Thanks for the help.



