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Old 10-24-2013, 03:31 PM
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blackhawk blackhawk is offline
MC Devotee
Join Date: Jul 2013
Boat: 2006 X15 350 MCX
Location: Virginia
Posts: 1,147
I don't understand the need to remove the thermostat housing. If you just take off the large hose from the engine water pump, you can pour your antifreeze in that way. The AF will flow backwards through the water pump and then fill up the engine. On my MCX, after about 2.75 gallons, the AF starts coming out of the thermostat housing where I removed the large hose. You just have to hold the end of the large hose higher than the thermostat housing.
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