Hey all in my boat i have a omc 120 wiring harness, I am switching the motor that was in there with a newer 1970s-80s omc 140 the guy i bought it from also gave me the wiring harness for it.
Upon a brief examination I have noticed the wiring harness in my old boat are rectangle connectors for the old engine and the new engine has the more updated circle ones. I am trying to locate two good electrical diagrams for the motors.
Should I take the old connections from my old motor and transfer them over to the new?
has anyone had any experience with this?
Thank you for the help!
Andy
I just checked the motor and the numbers on the engine read 2770087 349 83
below that it say GM made in mexico.
So maybe the engine is an 83? I checked everywhere else there is no other numbers that are important, I read that the name plate would be by the distributor OR above the starter mine had nothing. ( there is a serial number on alternator ALK 6210 7A and a number on a part of the exhaust manifold 970360.). I realize thats just a standard GM block after more research and those numbers probably don't tell us anything..
Upon a brief examination I have noticed the wiring harness in my old boat are rectangle connectors for the old engine and the new engine has the more updated circle ones. I am trying to locate two good electrical diagrams for the motors.
Should I take the old connections from my old motor and transfer them over to the new?
has anyone had any experience with this?
Thank you for the help!
Andy
I just checked the motor and the numbers on the engine read 2770087 349 83
below that it say GM made in mexico.
So maybe the engine is an 83? I checked everywhere else there is no other numbers that are important, I read that the name plate would be by the distributor OR above the starter mine had nothing. ( there is a serial number on alternator ALK 6210 7A and a number on a part of the exhaust manifold 970360.). I realize thats just a standard GM block after more research and those numbers probably don't tell us anything..
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