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Westerbeke W46 Sludge in Cooling System

wyeriver

New member
"W46 started to overheat. Rem

"W46 started to overheat. Removed thermostat and found bottow plugged with brown sludge. Wiped adjacent orifices with a rag and got more sludge, but not the big glob found on the thermostat. Would like to clean and flush cooling system, but Parts Manual shows only 2 brass 1/8" NPT plugs located on both side of forward end on engine. Both plugs are virtually inaccessible. How do I drain the block & transmission and flush the system to get all the cleaning agent out and new anti-freeze back in?"
 
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