1974 Mercury 850 spedo hole ? - iboats Boating Forums

July 30th, 2008, 06:02 PM

Bunky

Petty Officer 2nd Class

Join Date: May 2004

Location: Battle Creek Mi

Posts: 177

1974 Mercury 850 spedo hole ?

I read over on another site that some motors have speedometer hole built in,

Should my 1974 Mercury 850 have this ????

July 31st, 2008, 09:22 AM

Chris1956

Fleet Admiral

Join Date: Mar 2004

Posts: 8,010

Re: 1974 Mercury 850 spedo hole ?

The original lower on your motor did not have the built in speedometer Pitot. Newer gearcases (~mid 80s) did.

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