Changing out forward, and Sliding gear. Got some questions

Adamtr

Cadet
Joined
Jun 16, 2008
Messages
7
So it looks like my either my foward or sliding gear is done on my 1984 90hp merc. So i got some questions before i start taking things apart. Does a person need a special tools to perform this task and when i go to put everything back together is there anything i should watch for? Also wondered what kind of clearance does i guy have between the verticle shaft (pinion gear) and the sliding gear to allow the gears to mesh so i don't wreck anything?

Any pionters or knowledge in this area would be greatly appreciated, thanks for your time.
 
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