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671 Winterization

M

mcastellitto

New member
"Any suggestion on winterizing

"Any suggestion on winterizing 671's, I have no sea strainers and the intake hoses are 2 7/8" and will probably be a bear to pull off.

Is there an connection to pump antifreeze thru?"
 
"You only need to worry about

"You only need to worry about antifreeze if it is a fresh water closed system with a heat exchanger. In that case, maintain the SCA's and adjust mixture for your climate then drain the raw side of the heat exchanger.

If it is a straight up raw water cooling system then the most effective way to prevent freeze up is to drain the block at the various points provided. if there is a petcock at the oil cooler that one alone should pretty much do it as it sits so low on the block. Then pump the bilges."
 
"Whether you have a closed sys

"Whether you have a closed system or are raw water cooled, I would give serious consideration to installing strainers. It wouldn't take too much to clog up your fuel coolers or even jam up at the pump housing."
 
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