OMC 5.7 cooling system

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
50,338
FYI the cobra outdrive still needs to retain the flappers
 

ab59

Ensign
Joined
May 10, 2017
Messages
979
Scott Danforth-- I am trying to get the correct shutters for this system. The information that I had when I ordered the ones that do not fit was that the 0765166 were a direct replacement for the OEM 3853864 but they do not fit . I am still waiting for Doug Russel boat parts to reply to why these will not fit.
As foolish as this may sound , to avoid more delay I am installing the engine while I work out the shutter problem and when I get some that fit I will take the turn backs loose and install the shutters.
I have asked others about grinding down the shutters that I have to make them fit . It would be significant amount that would most likely grind away most of the rubber coating . What would you suggest ?
 
Top