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nikos67
05-11-2009, 06:32 AM
GOOD MORNING



My boat is fitted with one YANMAR 4LHA STE 230 BHP . And with 1300 total working hours . Recently I observe coolant (fresh water) leakage perhaps from the heat exchanger.



In order to find out the possible cause of leakage I would like to ask you if the manifold flange is connected with the cylinder head

Is there any case of manifold flange crack.



If not please tell me the possible cause of leakage and if this problem occurred in these engines





Best Regards





NIKOS

dave the brave
08-10-2010, 11:35 AM
Hi Nikos just wanted to know if you got the problem sorted ?