New Engine?

[andy salisbury]

I recently purchased a 1987 Ski Centurion with a Indmar Ford 351 with 1000 hrs. Fourth time out this year the engine hydrolocked on me. I believe that the engind overheated due to bad impeller. Pulled the plugs and had water coming out of all cylinders plus a lot of water in oil pan when I drained it. Everyone told me I had a a blown head gasket. Pulled the heads and gaskets ok. There is a lot of corrosion in the cylinders and elsewhere in the engine. A buddy of mine who is a auto mechanic suggessted I just put in a new long block. If I do that I am also going to replace the exhaust manifolds and risers. I still am not sure how the water got in (probably through the exhaust)My concern is that if I do all this am I missing anything that could still allow water in. I live in Reno and we definately get freezing weather, supposedly the boat was properly winterized. I have read about "flappers" in the exhaust. Do these come with a new manifold and riser or do I have to purchase them seperately? Finally if I go with the marine remanufactured long block, could my auto mechanic friend install it, or are there things I need to be worried about?

 

[vinney]

Re: New Engine?

You got bad information If the engine over heats the engine will pull water in thru the exhaust to cool it self. All you had to do was pull the spark plugs turn the engine over and remove the water put a fresh set of spark plugs. Change the water pump impeller and change your riser gasket and You would have been on your way.