Mercruiser Alpha One part

64Amphicar

64Amphicar

Cadet
Joined
Jun 2, 2018
Messages
24
I went to replace the water impeller on my 2006 Bayliner 185.
When I separated the upper and lower half of the stern drive this was there.
I have no idea what part it is or where it goes??
Any ideas??
 

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1960 Starflite

1960 Starflite

Chief Petty Officer
Joined
Jun 23, 2011
Messages
411
Backflow protection to help keep water out of exhaust upon sudden stops from full speed. Goes in exhaust elbow.
 
C

crazy charlie

Vice Admiral
Joined
May 22, 2003
Messages
5,749
That is an exhaust flapper.It was in the top of your Y-piope which is right after your riser connection to the Ypipe.
 
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