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Old 04-30-2012, 01:36 AM
nkorep2 nkorep2 is offline
TT Enthusiast
Join Date: Apr 2012
Boat: 1990 Prostar, 351 Windsor
Location: Southeast
Posts: 211
Day 1:

So I got a chance today to start working on this project. Got about 4 hours of work in. I started the engine tear down. There is obviously corrosion on the outside of the motor and as I quickly find out within the cooling system. The story behind this boat is still kind of a mystery even after the work today.

I removed the valve covers and the valves all look good on both sides of the motor.

Upon removing the hoses that attach to the thermostat housing, you can clearly see a ton of corrosion, someone must have used this boat in salt, or at least brackish water. I feel like the housing can be saved, maybe? It seems largely solid, but there is def a lot of rusty build up inside. What do you guys think?

I then pulled the hoses from the water pump. One side of the pump, I assume exit, was totally gunked up. Not sure what this is from. Maybe the Original owner ran through some muck that was sucked up into the system. It clogged the cooling system and the boat was put up without rinse which lead to the corrosion seen throughout? Idk, trying to figure it out. Anyone got any ideas regarding this?

The water pump is actually in pretty great shape, I didnt get a photo of it, but it spins smoothly and freely. I dont think it needs replacing, just a thorough cleaning. I then removed alternator, distributor, fuel pump and oil filter. Im assuming Ill have to replace all 4 from the list. There a way to clean the distributor, alternator, and fuel pump to see if they may work still?

I dont have a good image of the alternator, its a gonner anyway I think. I think removed the intake manifold. Everything looks clean with the exception of the cooling "ports" if thats what youd call them. I think this part can also be salvaged.

Then I removed the heads, and looks what I see! Water....actually, as I was separating them from the block, water started coming out. So the question stands, how did the water get in the cylinders? The motor turns over fairly easily by hand with the right socket. Can water get into the cylinders if the motor sits outside in the rain without a carburator on top of it? It sure is an awful lot of water that came out for the cylinders. It was like this on both sides, about the same amount on both sides.

Heres a close up. There is some rust, but it wiped away really easily with a paper towel.

So this is where I am now. I dont have the motor on a mount so I couldnt just remove the oil pan and finish the tear down to see what the rods look like. Hopefully I can get to that towards the end of the week. Assuming that the rest of the inner parts are in decent condition, is this motor worth rebuilding? I realize there are a bunch of questions in this post, but hopefully you can at least appreciate the photos and then answer them

I might potentially have the opportunity if this motor is a bust, to save up for and get a chevy 350 marine to install in this boat. Id rather keep the ford and not spend the money on another motor if I dont have to. I guess Ill figure the next step once the motor is completely torn apart. BTW, I only had one bolt thus far to give me trouble. I got it out with a manual impact driver that my buddy had. Neat little tool, never used one before.

Thanks in advance for all of your help.
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