prop info

brooksville_rebel

Petty Officer 1st Class
Joined
Aug 12, 2011
Messages
240
I finally got my prop off and after some vinegar soaking was able to get the info on the stamps to be read.
The prop says on one side
F 12.5 x 8 P
AF
L

The other side says
12
A

Now at the Mercury site when I did the prop selection tool it said I should be looking at for
aluminum Black Max 12.25 " 3 blade 9.0 pitch RH rotation.

I assume the L on the old prop means Left hand rotation. So does that mean the prop is wrong rotation or was on backwards (if possible) ? How do you tell which way the prop was spinning or is spinning while on the lower end ?

So little confused on what I should be looking for in the prop specs.
 

brooksville_rebel

Petty Officer 1st Class
Joined
Aug 12, 2011
Messages
240
Re: prop info

prop 2nd info.jpg
Here is images of the two sides of the prop .
F 12.5 x 8P
AF
L
 
Last edited:

jestor68

Commander
Joined
Jun 12, 2012
Messages
2,308
Re: prop info

Not aware of a Merc 40 being available in a left hand rotation model.

Back off a little and show a picture of the whole prop.
 

steelespike

Supreme Mariner
Joined
Apr 26, 2002
Messages
19,069
Re: prop info

Standing behind the boat Normal rotation is clockwise ,right hand.
As the prop rotates the blades are angled to push water toward you standing behind the boat.
 
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