Gear ratio?

dento29

Cadet
Joined
May 16, 2006
Messages
24
HI all, been doing my boat up for a little while now
(was just a hull) ...installed the engine and leg, steering and trim working fine.

The engine in question is a mercruiser 200MR..89' i think?
my question is,
how do i find out what gear ratio my leg is as there is nothing on it and thats the only part of the puzzle to stop me from sorting a new prop out.
this is on the engine but as i said, nothing on the leg?
Drive number A372747
Engine SN A307274
Transom number A375689

cheers
 

Bt Doctur

Supreme Mariner
Joined
Aug 29, 2004
Messages
19,111
Re: Gear ratio?

no such thing as a 200 MR.
How many cylinders?
raw water or fresh water cooled?
 

dento29

Cadet
Joined
May 16, 2006
Messages
24
Re: Gear ratio?

v8, 5.0l 200bhp..i'm in the uk so might be called something different there?

Sorry for the photo...not a good one!

Between me posting this and you repling i found out that it would be 1.65.:1 standard or 1.50:1, 1.85:1 1.98:1 optional?
Would of thought 1.65:1???
sports fisher with a 200hp, length in water of around 17ft and weighing aroung 2 tonne
prop ...16" diam and 19" pitch?? 35 knots ish?
 

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