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wrote:
trainfan1 wrote:

wrote:

I'm very new to boat motors. I've got a 1973 Johnson 135 Outboard on a
old Caravelle. I recently rebuilt the transom and floor, but when I put
the motor back on and ran the boat the lower unit leaked and stripped
the lower unit gears.

I'm looking to buy a used one. Does an ESL model have a longer shaft
than normal?

Any help would be appreciated.
Thanks, Jason

ES= Electric Start
L = 20" Shaft

Your outboard has the "PowerShift II" lower unit - a replacement with a
similar 85-90-115-135-140 unit up to about 1977-1978 should be possible
- keep in mind that the 135/140 has a different gear ratio than the others.

Rob

On a slightly different note. What kind of expertise does take to
rebuild? I recently found a service manual and found out that my shaft
is an extra long shaft and is 26 13/32 in. Also, it has the lower unit
disassembly and assembly. I'm not sure if mine has a hydro-mechanical
or mechanical shift assembly. Is there any way to tell?

On a scale from 1-10 how difficult is doing all of this myself?
On a scale from 1-10 how difficult is doing all of this with a
helicopter mechanic helping me?

Thanks, Jason

"PowerShift II" is the hydro-mechanical unit. If the case is fine, the
bearings have not spun, and you can flush any FMC(Fine Metal
Contamination)you can rebuild with parts from Sierra pretty
economically, but you will need some special tools(see the manual) and
know how to set the lash properly(includes having a suitable selection
of shims on hand) & seat the seals.

I usually take the lower unit off myself and deliver it to my "leg guy"
who has all the tools and his bench is set up for quick turn-around.

Where are you measuring 26 13/32 in.?

Rob