Have some questions on this relic of a motor if anyone out there has any knowledge on them. I know that it was built between 1950 and 65 by either Gale or OMC. I got the motor from my grandpa about 8 years ago and then it sat for those eight years. Now that I got into duck hunting I have a real use for it. I got the old baby to fire up and run amazingly enough. My questions are what the gap on the spark plugs should be and is the motor air cooled or does it have an impeller. I have run the motor for only about a minute at a time in bucket of water and it does not pee any water out the back so I figure that it was air cooled or the impeller is broken. I would appreciate any help.