96 4.3 Merc no start

[SeaRayboater95]

Hey guys and Gals,

My buddy says this boat was running pulling tubers. Shut it off and to load kids. Hard restart, then died shortly after. Towed back to dock.

Timing chain seems good. Crank moves about 3 degrees while turning crank by hand before rotor moves

Have fuel....seen squirt into carb
have spark....back fire trough carb at full throttle to clear fuel from flooded carb
Have compression, but varies from 135lbs to 180lb.

6-180 5-160
4-160 3-145
2-170 1-135
Dry cold cranking

Getting a spray from #6 while cranking.

Any help or direction would be awesome.

Thanks,

Ken

1996 Glastron 4.3 2bbl carb
F769949

 

[alldodge]

Spray from #6 and compression is high. Check if that's water in 6

 

[Lou C]

spray from the spark plug hole and the high comp test results suggest water in the cyls. Might be one or more than one.

 

[SeaRayboater95]

I used starter fluid to see if it would fire. It did not. At any rate, the spray smells like starter fluid. I'll try again later.

 

[SeaRayboater95]

spray from the spark plug hole and the high comp test results suggest water in the cyls. Might be one or more than one.

Are we thinkin' head gasket?

Ken

 

[Lou C]

It could be that or exhaust leaks. Investigate exhaust leaks first.