Petcocks on Yanmar 4JH4E

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John Hosty

Can anybody advise me if it is necessary to drain the raw water side vis its petcock as part of winterization? I have already flushed the engine with Anti-Freeze. Also, if the answer is yes, where the hell is the raw water petcock on a Yanmar 4JH4E? As always, my thanks to teh collective mind. john
 
J

John Hosty

Can anybody advise me if it is necessary to drain the raw water side vis its petcock as part of winterization? I have already flushed the engine with Anti-Freeze. Also, if the answer is yes, where the hell is the raw water petcock on a Yanmar 4JH4E? As always, my thanks to teh collective mind. john
 
M

Mike

piece of cake

open thru hulls if boat is in water, run engine to warm it. Change oil and fiter, then close thru hulls take off top of strainer, pour in quicksilver marine -100 antifreeze, run engine. Run 3 gallons through it, your set for the winter
 
M

Mike

piece of cake

open thru hulls if boat is in water, run engine to warm it. Change oil and fiter, then close thru hulls take off top of strainer, pour in quicksilver marine -100 antifreeze, run engine. Run 3 gallons through it, your set for the winter
 
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