2011 RT 25SC Yanmar Heat exchanger servicing

Status
Not open for further replies.

Deb2021

Member
Joined
May 31, 2021
Messages
17
Fluid Motion Model
C-26
Vessel Name
Pip
MMSI Number
316028697
I am in the process of ensuring all maintenance is up-to-date on a new to me 2011 25SC with Yanmar 150 HP engine. Corrosion was found on the heat exchanger and after consultation with my previous sailboat mechanic (retired), I started working with a known and recommended mechanic. Everyone seems to know that the engine on these boats are tight access and not easy to work on. He confirmed that. This morning I received this email from him and I am looking for any input or best practice to make this easier...
I have the aftercooler and heat exchanger off the boat - it was a bit of a fight - we had to lift the engine completely out and we still can't get at the oil cooler - I am going to check the other coolers and see what their condition is today and we can make a decision if we are going to get the oil cooler out but I think we need to get the engine up higher to get at it even. This yanmar engine I will say is one of the worst designed engines out there - If there is anything that you need to do to the lower part of the engine I would just remove the engine next time. If you are not stuck to the boat I would think about switching up and either finding a ranger tug with a different engine or something else as I think one day this could be a costly little engine to fix. Even this operation takes longer than it should.
Thanks in advance for any input...Deb
 
I would suggest that you pull the engine from the boat. You will have full access and inspection, and replacement of hidden parts ie oil pan, rubber hoses, and then paint all surfaces.
 
Status
Not open for further replies.
Back
Top