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Started By
Message
Outboard mechanics answer me this
Posted on 3/13/20 at 2:42 pm
Posted on 3/13/20 at 2:42 pm
Old Johnson 150. 6 cylinder. No fire on right side of motors 3 cylinders.
I assumed it was the power pack as I have had this happen once before on a different boat.
What has me questioning my reasoning that it is the power pack is because this boat unlike my first only has one power pack. Not one on each side.
So without doing any diagnosticsn do you agree it is probably the power pack OR not likely to only affect half of the cylinders from a single power pack???
I assumed it was the power pack as I have had this happen once before on a different boat.
What has me questioning my reasoning that it is the power pack is because this boat unlike my first only has one power pack. Not one on each side.
So without doing any diagnosticsn do you agree it is probably the power pack OR not likely to only affect half of the cylinders from a single power pack???
3
Posted on 3/13/20 at 2:49 pm to omegaman66
Additional information if you care to read.
Boat was tied up to the bank and another boat rammed the motor. The hit broke one of the coils. My brother had to limp back to the landing on 4 of 6 cylinders.
Replaced top coil and boat again ran fine. 3 months later (now) the right side of the engine gets no fire. The power pack was cracked at the top left corner. This could be cause of the failure even if it was delayed failure???
Boat was tied up to the bank and another boat rammed the motor. The hit broke one of the coils. My brother had to limp back to the landing on 4 of 6 cylinders.
Replaced top coil and boat again ran fine. 3 months later (now) the right side of the engine gets no fire. The power pack was cracked at the top left corner. This could be cause of the failure even if it was delayed failure???
Posted on 3/13/20 at 3:06 pm to omegaman66
Does your model have the shift interrupter switch?
Posted on 3/13/20 at 3:32 pm to rustyjohnson
I don't know. The motor is at my brothers house so I can't go look at the moment. But lets say it does. Are you saying the switch could be out of adjustment and that is the problem. Is it typical for half of the cylinders to not fire when this is activated? I don't know much about outboards.
Posted on 3/13/20 at 5:54 pm to omegaman66
Crank sensor power pack nothing else it could be
Posted on 3/13/20 at 7:30 pm to omegaman66
switch everything to the other side and see if the problem follows
9 out of 10 its the power pack/ECM but there is a small chance its the pickup coil under the flywheel not telling it to fire, there is an ohm resistance reading in the service manual to test it
9 out of 10 its the power pack/ECM but there is a small chance its the pickup coil under the flywheel not telling it to fire, there is an ohm resistance reading in the service manual to test it
Posted on 3/13/20 at 7:58 pm to keakar
THANKS FOR THE RESPONSES!
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