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5.0L Mercruiser Engine Question

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davidwbeitz

New member
My engine serial number is 0w360991 which i believe is the 305 CU IN GM V8 with a Bravo III outdrive. In the manual i see reference to a single point drain, 3 point drain and online I see a 7 point drain referenced. I'm not at the boat and wondered if there was some way to find out what my engine has without looking at it. I want to change the thermostat but not sure which configuration I have.

Thanks in advance
 
davidwbeitz said:
My engine serial number is 0w360991 which i believe is the 305 CU IN GM V8 with a Bravo III outdrive. In the manual i see reference to a single point drain, 3 point drain and online I see a 7 point drain referenced. I'm not at the boat and wondered if there was some way to find out what my engine has without looking at it. I want to change the thermostat but not sure which configuration I have.

Thanks in advance
Click to expand...
Big grey ball bottom port side of engine with blue plug is single point drain.

Blue plug on each manifold, one on each side of the engine block, one in the cooling hose on SB side of water pump and one in T-Stat Housing is the Seven Point.

Raw water cooled, just pull the t-stat housing and change the stat.
 
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