Yes, don't leave us like this.

ditto

Are you boating on salt water? 4-5 years is not unusual to have a manifold corrode through.

ROB,
I have a similar situation on my newest purchase. 1990 Checkmate.
My situation is the sameexcept that my boat ran perectly right up until I put it away.
Wouldnt start the next day.. Water in 2 cylinders
I also think you will not find if it is a manifold leak too easily until it is back in the water. In my case I surmised that on the trailer the water would still empty out via drive. When it was in the water it had no place to go so it cam in through a crack whil the engine cooled creating vacuum. Not sure if this is possible just guessing. Let us know what happened I cannot get to my boat till the weekend and would be appreciative of any info

vig,
rob has not been logged in since August 2007. It's not very likely he's going to respond. You would be much better off starting your own thread.

The aluminum exhaust manifolds do leak. You can take the risers off and look inside the exhuast manifold and you will see bubbles that look like tree sap. When we checked for leaks we found literally 100's of the spots. It was on a 2001 with 900 hours.

You sucked a valve ,do a compression test on no 7 I have used heads 1000.00 a set Bob at 4127810881