Merc 170 Clogged Riser = water in oil? please Help

[jake1z]

Re: Merc 170 Clogged Riser = water in oil? please Help

im going to check the compression... if it shows up bad ill do the head gasket but i really dont want to pay for a new riser i already have the boat listed for 1k less than i bought it for three weeks ago.

 

[mdlee]

Re: Merc 170 Clogged Riser = water in oil? please Help

Well good luck one way or the other

 

[jake1z]

Re: Merc 170 Clogged Riser = water in oil? please Help

thanks for the help everyone

 

[jake1z]

Re: Merc 170 Clogged Riser = water in oil? please Help

so i took the exhaust manifold off today and noticed white slime near the 4th cylinder... debating on whether or not to just pull the head and replace all the gaskets (head, intake, ext, riser, ect.) should i just go for it? will i need new head bolts or can i reuse the stock ones... thanks again guys

 

[jerryb1]

Re: Merc 170 Clogged Riser = water in oil? please Help

After reading all these arguements about how water can get in the oil, I'm not sure I know.

All I know is that I had a bad riser and riser gasket and I had water in the oil. What I think happens is the water enters the exhaust valves via the leak and fills the cylinders. The rings are metal to metal and water will seep down past them. At least that's how I think I got the water in the oil.
After replacing the risers and gaskets the problem went away.
Does this make sense?

 

[jake1z]

Re: Merc 170 Clogged Riser = water in oil? please Help

idk im parting the thing out now... i cant can the thing to turn over.. and no one wants to buy it as it is so everythings getting sold.

 

[Eric 3.7LX Alpha 1]

Re: Merc 170 Clogged Riser = water in oil? please Help

Where did you last leave off on this? Pulled the riser...
Did you ever drain the oil/water mix out the engine? or remove the head?