Great advice guys, so far no spark on the spark plugs, but I'm in the process of swapping them out with new ones (just incase the sitting water in the cylinder rusted out the tips of the plugs).

The coldest it got here was about 29-30, for about 12 hours or so. I'm not too convinced that this is because of the freeze, but who knows.

I did have issues "RESTARTING" the boat when it was warm this past boating season. It would start up just fine when the engine was cold, but not so great when it was warm. I'm thinking there was a previous leak in the cylinder/block before. I'm debating this because when we would run the boat on the lake and kill it to swim, I feel that water somehow found its way up to the cylinders and prevented an easy restart when the engine was warm.

Would the next step from now be to take the heads off? Has anyone ever taken the heads off it? It's actually a GM 350 engine in this Supra. I guess in 84 they had a special edition 350 instead of the 351 or 454 (so i'm told anyway).


MikeyD- Mikey, when I try to start the engine and it turns, water doesn't actually go thru the system without it starting. I can't get antifreeze in the block without it starting. Does it sound like I have an issue?