1968 Evinrude 6hp lower unit gear ratio?

[bikerider]

Does anybody know the lower unit gear ratio for a 1968 Evinrude 6hp? I found the service manual online but unfortunately it does not tell.

 

[schematic]

easy to figure out. Do you have the gearcase?

 

[F_R]

My book sez 15:26

 

[bikerider]

My book sez 15:26

Thanks, would you call that roughly 2:1? The decimal is 0.58

 

[F_R]

Yeah, roughly, which would be 15:30. They avoid doing that because the same gear teeth would meet over and over again.

 

[bikerider]

Yeah, roughly, which would be 15:30. They avoid doing that because the same gear teeth would meet over and over again.

That makes sense. Thanks a lot for you help. I appreciate it.

 

[jimmbo]

Yeah, roughly, which would be 15:30. They avoid doing that because the same gear teeth would meet over and over again.

Yet the V4s used a 2:1 ratio for most of the time after 1968.

 

[F_R]

Yet the V4s used a 2:1 ratio for most of the time after 1968.

That got my attention, so I looked it up and it is true. They were 13:26. But the V-6 models were 14:26 (at least in 1978, where I was looking)