99 350 5.7L Mercruiser - What outdrive?

[kwoolard]

I have just purchased a boat, and was trying to figure out if I had the gen. 1 or 2 alpha outdrive. The serial number on the drive is OL422470. Can anyone tell me what drive I have?

Thanks!

 

[Don S]

Re: 99 350 5.7L Mercruiser - What outdrive?

Alpha I Gen II

 

[kwoolard]

Re: 99 350 5.7L Mercruiser - What outdrive?

Thanks Don,

Another question. Right where the lower unit is attached to the upper unit, there is a small drain hole on either side of the drive. I noticed that there is a small amount of oil that is draining from these two holes. I am trying to isolate where that would be coming from. My guesses are, the upper drive shaft seal, the quad ring, or the remote drive fill line. I know I need to drain and pressure test the drive....just trying to eliminate where the leak is not coming from. I am not familiar with the gen 2 drives, but don't see many differences from the type 1 drive I previously owned. Any help would be appreciated.

Also, is there a manual online for this drive and engine?

Thanks

 

[Don S]

Re: 99 350 5.7L Mercruiser - What outdrive?

http://www.boatfix.com/merc/Servmanl/14/14cover.pdf

The shift shaft seal is a common place for a leak to show there, but without a pressure check, it still just a WAG.