Logo

Water in Cylinder 90Hp Johnson V4 CE model

Kingy68

New member
Hoping someone can suggest what could be wrong.

Motor has been running fine but when we finished last trip whilst trying to trailer engine would not idle and would keep stalling. At high revs no problem. Cylinder compression is fine at 100 all around. If you are facing the motor from the rear I have found water in the top of the cylinder at the top left. The bottom piston on the same side has corrosion on the spark plug which has only been put in two trips ago or about 5 hours running.

The compression being ok confuses me any suggestions as to what could be causing the water to get in.

regards

Kingy
 
Check head bolt torque----------240 inch lbs----------------Check screws on the exhaust cover as well.-------------------Might want to pull the cylinder head / inspect / resurface the cylinder head / install new head gasket.
 
Back
Top