DevinM
Cadet
- Joined
- Jun 16, 2020
- Messages
- 28
A few weeks ago I was on the creek and lost spark. It was obvious that the stator went bad after i pulled the flywheel. I have a parts engine (that I overheated already and scored the cylinder walls) and decided I would replace the entire electrical system including rectifier, power pack, armature plate, terminals block, flywheel etc.at once. The stator that went bad was 'normal' looking to me with metal plates stacked on top of each other and the one I got off the parts engine was green and maybe was the same thing but filled with like resin to keep it all sealed? Anyways after the swap I got spark and the engine to start and idle with the muffs.
I then launched the boat and it couldn't get on a plane. I figured I would check timing as the manual says it would need to be checked if electrical components are replaced. Once I convinced my sister to come aboard and give it WOT I found out that I wasn't getting spark on cylinder #1 (timing light wasn't strobing once throttle advanced). I immediately swapped power pack and coils and we were up and running in no time. I thought all was good until I checked tell tale pee hole and it was hot. The exhaust holes were incredibly hot and the head was so hot I couldnt leave my finger on it for anytime at all. I know this engine shouldnt be near as hot as it was. I wish I checked timing after I swapped PP's while I had a deck hand but I didn't think to at the time. The book says CDII ignition systems don't have adjustable timing but there is a screw to mess with to advance/retard and a spec on the air box for advanced throttle. No spec for idle timing I can find.
I have many many hours on this beauty and it has never been that hot. I then checked water pump (A okay), removed thermostat (removed that out of the equation) and changed the L.U. oil just because.
Outboard is still overheating and I cant help but notice a lot of black varnish/exhaust smoke? is gathering around where the L.U. mates to mid section. Even more black varnish around were the cover is that you have to take off to get to gear linkage. That must be related to the overheating I am thinking.
I dont know why #1 wasnt getting fire after the working magneto was installed. Then it was getting fire after PP and coils swapped but now getting hot.
Do you think it is preignition because im thinking thats about the last thing that'll overheat an outboard.
I know i need a new head gasket after removing the thermostat but before throwing money at it I wanted to talk to like-minded individuals about the overheating
I searched all throughout the forum for something like this but I could not find anything. I hope I was clear enough and I appreciate anyone viewing this!
I then launched the boat and it couldn't get on a plane. I figured I would check timing as the manual says it would need to be checked if electrical components are replaced. Once I convinced my sister to come aboard and give it WOT I found out that I wasn't getting spark on cylinder #1 (timing light wasn't strobing once throttle advanced). I immediately swapped power pack and coils and we were up and running in no time. I thought all was good until I checked tell tale pee hole and it was hot. The exhaust holes were incredibly hot and the head was so hot I couldnt leave my finger on it for anytime at all. I know this engine shouldnt be near as hot as it was. I wish I checked timing after I swapped PP's while I had a deck hand but I didn't think to at the time. The book says CDII ignition systems don't have adjustable timing but there is a screw to mess with to advance/retard and a spec on the air box for advanced throttle. No spec for idle timing I can find.
I have many many hours on this beauty and it has never been that hot. I then checked water pump (A okay), removed thermostat (removed that out of the equation) and changed the L.U. oil just because.
Outboard is still overheating and I cant help but notice a lot of black varnish/exhaust smoke? is gathering around where the L.U. mates to mid section. Even more black varnish around were the cover is that you have to take off to get to gear linkage. That must be related to the overheating I am thinking.
I dont know why #1 wasnt getting fire after the working magneto was installed. Then it was getting fire after PP and coils swapped but now getting hot.
Do you think it is preignition because im thinking thats about the last thing that'll overheat an outboard.
I know i need a new head gasket after removing the thermostat but before throwing money at it I wanted to talk to like-minded individuals about the overheating
I searched all throughout the forum for something like this but I could not find anything. I hope I was clear enough and I appreciate anyone viewing this!
