20 hp mercury identify this hole!

sahendo

Seaman
Joined
Aug 12, 2013
Messages
54
I need help! 1976 Mercury 200 20 hp, ser # range 441****, mod # 1200506E, No water from tell tale! I checked the water pump and the water tube, they seem to be in good condition. The impeller is a little stiff but still intact. So why i had the lower unit off i hooked the hose to the water tube, some water did come out of the tell tale but most of the water came out of a hole down and to the left of the water tube which seems to be in the bottom of the block. I'm adding pictures to try to help to determine what this hole is. Any help would be appreciated!
 

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sahendo

Seaman
Joined
Aug 12, 2013
Messages
54
If anybody that's looking to help me figure this out needs anymore info just let me know, thanks
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,589
It is for the water wall that cools midsection,water pump housing and exhaust muffling...
 

sahendo

Seaman
Joined
Aug 12, 2013
Messages
54
So water is supposed to come out of that hole? If so, then what do you think it could be? The water pump looks good, do you think maybe the water tube seal on the water pump housing?
 

sahendo

Seaman
Joined
Aug 12, 2013
Messages
54
I think i found the problem, a rubber washer was turned sideways in the water pump housing at the bottom of the water tube bushing. I didn't see anywhere it would have come from inside the housing, so I don't know if guy I bought it from dropped it in there or what? I have water coming out of the tell tale now with the ears on so time to put it on the boat and try it!
 

sahendo

Seaman
Joined
Aug 12, 2013
Messages
54
No Title

This is the washer. Don't know Where it came from?
 

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