Merc alpha id

bones774

Petty Officer 1st Class
Joined
Nov 11, 2008
Messages
328
I have this upper unit laying around, alpha 1 gen1?, and the little stamp in the corner. Does that show the gear ratio 1:65 and r for right hand? what size engine is this suited for? Thanks
 

Attachments

  • merc upper.jpg
    merc upper.jpg
    64.7 KB · Views: 0

mercs4mark

Petty Officer 2nd Class
Joined
Dec 19, 2010
Messages
141
Re: Merc alpha id

Yes that is the gear ratio and it is a right hand rotation.
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Merc alpha id

1.65R just means 1.65Ratio, has nothing to do with rotation. The lower is the only thing that changes rotation.
It's an R, MR, or Alpha I by looking at the decal and shape and what looks like a flat cap. Serial number will be needed for that ID.
The chart below shows where they were used.

ratios.jpg
 
Top