LumleyRick
Contributing Member
If the coils on older evinrudes have cracks on the thin outer plastic does that mean they r no good
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Exactly but engine still runs good
Will replace don't want any problem on the lake that can be stopped from happening by replacing. Is there any reason for timing to b off on old motors
Is there anything that can cause timing to be off on old motors
What causes the coils to get cracked and white stuff on them. Does it mean the engine was used a lot or can they get like that just from sitting for years
Repeated heat and cool cycles over the years causes the plastic to shrink and become brittle with time. It's the same reason you see older cars with cracks and splits in the plastic on the dash. The plasticizer compounds degrade and changes the pliability of the material until it finally breaks.What causes the coils to get cracked and white stuff on them. Does it mean the engine was used a lot or can they get like that just from sitting for years
I am one of those chrack pot people you are talking about but just answer his question.They just get old like a lot of crackpot people who's hair turns white, retire and quit working.......
I am one of those chrack pot people you are talking about but just answer his question.
When a coil is wound the copper wires are separated buy greased paper and when fully wound more paper is unsed with usually a plastic coat to protect the windings. The coil can be still operational if this plastic cracks and if it is then I would suggest just re-covering it with a rubber sealent to keep out moisture.
I'm with Racer, I'd replace them. But, if you want to give it a whirl I'd use some form of high temp epoxy, JB Weld, or similar material. Elastic materials like Plasti-Dip and coatings like that may not fair well. Personally I would coat the whole thing to allow the material to bond all of the parts of the old plastic together.What would a person do put a thin coating of gasket sealant all over the whole thing or just cover the cracks