Honda BF90 testing coolingsystem

S

sverel

Recruit
Joined
Jul 12, 2009
Messages
1
Hello!
I have a Honda BF90 -1997 4 stroke with water in oil. Have replaced the oilpan gasket,powerhead gasket and cylinderhead gasket. When running in tank, no leak. When running in sea for 10 min, the oil is grey. 1-2 table spoons of clean water running out of the drain plug before the grey oil comming. Anyone know if there is a easy way to pressure test the coolingsystem for leaks/cracks?

Best regards
Svein Erik
 
T

tomtnwlkrs

Seaman
Joined
Jan 13, 2010
Messages
54
Re: Honda BF90 testing coolingsystem

did you ever figure this out. I am looking at this exact motor used for a pontoon and cannot decide to buy or not.
 
D

dummyman

Seaman Apprentice
Joined
May 24, 2009
Messages
37
Re: Honda BF90 testing coolingsystem

Hi,
I m sorry to say your block is corroded. Check the undercase gasket (top gasket) and you will find cylinder block web eaten up. Good weldwork will solve the problem.
stay cool and get it done. Since you are doing it will need to purchase a gasket and get the area welded and scraped for flatness to avoid leak.

Regards
 
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