One of the biggest problems is the years of rust scale build up within the heads and engine block. I have recently changed aq130 engines with a serviceable 2nd hand engine. On inspecting the water ways I could see flakes of rust in all the water ways which I put a water hose on and was surprised...
Somebody in their wisdom knew there was a problem with overheating and removed the thermostat the head gasket must of deteriorated over time to the point where when I throttled up it was enough to finally blow it. I think your advice is the only way ahead, lift the boat and pull the drive. Just...
I bought the boat before last lockdown and on first use the engine faltered. On inspection found head gasket had gone and water ingress had caused hydraulic action on a con rod. Until now not had any dismantling by me.
I need to replace my engine and the manual says this can be done by removing bell housing bolts to enable you to slide engine out.
I am doing this whilst boat is still in the water.
Have removed all bell housing bolts with engine supported by boatyard crane but can only withdraw it half an...
