CliveG
Well-known member
Hi
I am having a problem with my Tohatsu 3.5 - 2 stroke outboard.
I normally us the outboard the go out to our swinging mooring, about 5 minutes run each way.
The spark plug is getting fouled with a wet brown deposit and has had to be cleaned prior to starting each time.
This has been getting worse for a while.
I did a longer run the other weekend and now the engine refuses to start at all.
I suspected the head gasket first and removed the head.
I can't see a problem with the gasket.
I have now removed the power head and split the crank case.
A lot of brown deposit and the crank has rust spots on it.
I suspect water getting into the crank case but can't find any obvious route past the gaskets.
Has anyone had a similar problem?
What is the cause?
Do I just put it all back together with new gaskets having cleaned up?
I am having a problem with my Tohatsu 3.5 - 2 stroke outboard.
I normally us the outboard the go out to our swinging mooring, about 5 minutes run each way.
The spark plug is getting fouled with a wet brown deposit and has had to be cleaned prior to starting each time.
This has been getting worse for a while.
I did a longer run the other weekend and now the engine refuses to start at all.
I suspected the head gasket first and removed the head.
I can't see a problem with the gasket.
I have now removed the power head and split the crank case.
A lot of brown deposit and the crank has rust spots on it.
I suspect water getting into the crank case but can't find any obvious route past the gaskets.
Has anyone had a similar problem?
What is the cause?
Do I just put it all back together with new gaskets having cleaned up?