very slow coolant leak below coolant plastic overflow contai

jimbeam

Well-known member
Joined
Aug 21, 2019
Messages
173
Fluid Motion Model
C-248 C
Hull Identification Number
FMLT2545G708
Vessel Name
waite & sea
R25 2008 yanmar 4jh4hte 110 hp. Slow ( few drops over time) coolant leak below the overflow bottle but lower where their is what looks like a small pump. I think the leak is the pump itself but I don't know for sure. Checked the two hoses and no leak. What is this pump for? The cabin heater? No where is it described in the manual either for the yanmar 110 hp or the boat manual. Location of the pump in question is about a foot lower than the overflow bottle under the step that lifts by the door.
jimbeam
 
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