1985 90hp head gasket pics, diagnose help needed.

[captain catfish]

i was told i might have water in a cylinder causing a mis-fire, i did have a wet plug, but i did not check to see if it was fuel or water. i decided to pull the head just to have a look anyway.

here is what i found. if anyone can read this gasket and tell me what or where it appears to have leaked please tell me. i have several pics, if it will help anyone to be able to help me.

you guys have been great so far,


​http://s300.photobucket.com/user/captaincatfishsboat/media/SAM_0178.jpg.html


http://s300.photobucket.com/user/captaincatfishsboat/media/SAM_0181_1.jpg.html

 

[emdsapmgr]

The head gasket looks fine. The seal ring is intact for both cyls. The pistons look normal, somewhat wet, oily-after idling for a while. Cyl walls look excellent. Do not see any real problem, except-the middle rubber water deflector may have the start of a restriction. It may be restricting water flow slightly-hard to tell from this picture. See attached pic of how the center deflector it should look. (The right-most deflector is out of position in this pic.) I don't see signs of water. You can get water in the cyl from a leaky exhaust manifold.

 

[captain catfish]

thanks for looking, i will put everything back together and run it and see if i still get water in the cylinder. i'm guess if i do the most likely culprit will be the exhaust gasket?

 

[captain catfish]

thanks for all the help, i ended up removing the exhaust covers to take a look and to check for water leaks, i could not find any signs of leakage, i reassembled the motor and rebuilt the carbs and replaced the plugs, i'm not sure which 1 fixed it, but it runs great, we have been out 3 or 4 days in a row and it has been doing perfect,

thanks for all the help and advice.
mark

 

[emdsapmgr]

If it's not the head gaskets, then it's the exhaust cover gasket. Good call on the exhaust gasket.