Leaking lower unit on 71 Johnson 100hp

[70wellcraft]

My 71 Johnson 100hp had a bunch of fishing line wrapped around the prop shaft which I believe has caused the lube to leak through. I have ordered a lower unit seal kit and have begun to disassemble the lower unit. Here is where I need help. Does anyone have any diagrams of this lower unit you could send me? Also how do I get the prop shaft housing to come out? I have removed the 4 bolts holding it to the main lower unit housing but how does it come out? Can I replace all the seals and rings myself with general tools? Please help
Thanks so much
Dave

 

[Vic.S]

Re: Leaking lower unit on 71 Johnson 100hp

Really you need a manual but you will find exploded diagrams in the parts catalogs HERE

You have only found 4 of the 6 bolts that hold the gearcase on. One, maybe both, of the others are hidden by the anode

#97 and #99 in THIS DIAGRAM

 

[70wellcraft]

Re: Leaking lower unit on 71 Johnson 100hp

Vic,
Thanks, I was able to get the lower unit off the engine so I did find all those bolts. The one I have a question about is the #28 BRG. HOUSING SEAL ASSY that bolts into the #1 GEARCASE AND BRG. ASSY. I have pulled the 4 bolts out but now how does #28 come out of #1? How do I dissmantle this thing to get the seals out? I am too cheap right now to buy a manual.

 

[70wellcraft]

Re: Leaking lower unit on 71 Johnson 100hp

Also, can I pull out the #28 BRG HOUSING first or do I need to pull the drive shaft before that? When #36 PINION GEAR is meshed with #40 GEAR won't that prevent the @28 from moving out? A summary of the steps required to replace the seals would be extremely helpful. Sorry I am too cheap to buy a manual right now. These temp layoffs are a killer.