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1987 Wellcraft Coastal 250 Chevy 350 Mercruiser

Jmy129

New member
Hi all,

I am a new boat owner and have no manuals. Any suggestions?

I am working on replacing the thermostat housing, cover and hoses. I found a 3/8"(maybe 1/2"?) hose in the engine compartment with a brass cap on it. Does anyone have any idea what its for?

Thanks,
Jmy
 
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