2005 Mercury 90-HP Water in Oil
Posted: Sun Apr 22, 2018 5:44 pm
I posted about problems with this 2005 Mercury 90-HP engine earlier. The problem I will soon describe below seems worse than earlier problems.
Last fall (2017) I picked up a boat with a 2005 Mercuty 90-HP FOURSTROKE engine; it looked like new and ran great. The lubticating oil on the dipstick looked clean.
When the crankcase oil was drained a good amount of water came out first. I found an old post on this exact situation that described a problem with a gasket on top of the water tube gone bad causing the water to enter the oil sump; I am guessing this engine has the same defect.
For anyone familiar with this and the process to access this gasket: Does the powerhead need to be removed?
Or, is the gasket accessible in an easier way.?
With fishing season near I do not like the idea of pulling the powerhead if I do not need to—seems like a better winter project. Below is the link to the original post. I tried a search and did not find anything else.
Any help would be great.
Thanks—Andrew
http://continuouswave.com/ubb/Forum3/HTML/020030.html
Last fall (2017) I picked up a boat with a 2005 Mercuty 90-HP FOURSTROKE engine; it looked like new and ran great. The lubticating oil on the dipstick looked clean.
When the crankcase oil was drained a good amount of water came out first. I found an old post on this exact situation that described a problem with a gasket on top of the water tube gone bad causing the water to enter the oil sump; I am guessing this engine has the same defect.
For anyone familiar with this and the process to access this gasket: Does the powerhead need to be removed?
Or, is the gasket accessible in an easier way.?
With fishing season near I do not like the idea of pulling the powerhead if I do not need to—seems like a better winter project. Below is the link to the original post. I tried a search and did not find anything else.
Any help would be great.
Thanks—Andrew
http://continuouswave.com/ubb/Forum3/HTML/020030.html