Milky substance in cylider

[Myron]

I have a 86/87 johnson 30Hp outboard that I first started having trouble overheating, which was fine last year, took it to a shop had carb cleaned etc. first ?, wonder if and how that might affect this problem of overheating. I have a stream at the pee hole,but not much out of exhaust, I removed the cover plate for the th stat - replaced th stat -obviously this motor had been in salt water - cleaned all salt build up out -another question?- could there be salt in other parts of motor I need to address.<br />finally I now have a milky liquid in one of my cylinders (obviously not firing )what the world is that all about - I can only imagine the worst ie cracked head etc<br />Please Help ASAP would like to get on the water ASAP<br />Myron

 

[Namcali]

Re: Milky substance in cylider

Milky liquid is ususually oil and water mixture. Where do you see the liquid coming from? exhaust?<br /><br />I would check compression for consistency between the two cylider first. Is the engine running?<br /><br />Good luck,<br /><br />Nam

 

[Myron]

Re: Milky substance in cylider

Originally posted by Nam:<br /> Milky liquid is ususually oil and water mixture. Where do you see the liquid coming from? exhaust?<br /><br />I would check compression for consistency between the two cylider first. Is the engine running?<br /><br />Good luck,<br /><br />Nam

 

[Myron]

Re: Milky substance in cylider

Thanks Nam<br />The milky substance is in the Cylinder - noticed when i pulled the plug - motor runs on one Cylider obviously not this one - since last visit i pulled head off -believe gasket is bad - unfortunately the cylinder (without milk) has been scored - appears part of piston broke off to cause scoring - now my delima - what to do - repair? put back together run it till it dies? Buy new - sure appreciate all input<br />Myron

 

[R.Johnson]

Re: Milky substance in cylider

If you have part of a piston broke off, it will not run for very long. Fixing it will depend on if you can do it yourself, or how much you are willing to spend.

 

[Myron]

Re: Milky substance in cylider

Never fixed one before sure sounds like a fun learning experience - i have a clymers manual, is not much help - do you recomend a diff one for this job. I will prob look to buy a replacement as a quick fix - and tinker with the old one to repair.

 

[jgriner]

Re: Milky substance in cylider

oem manuall