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Project started
December 2020,
See the CAD version here
As I switched from a Shovelhead to a Panhead motor, the belt
was hanging too far outside, so I decided to replace the mainshaft
and while I was at it the housing as well, although that was
not strictly necessary I thought it would look better. I pulled
the clutch and removed the front sprocket, and took some "before"
measurements. |
I like to put all the small parts in baggies, keeping it
all organised is quite helpful when the time comes for reassembly
ofcourse. I made a little aluminium plug to make sure the puller
would not split open the mainshaft, completely stripping the
grarbox took about 2 hours. |
As you can see the Andrews mainshaft (model 1937-1964) is
quite a bit shorter than the newer one, because back then Harleys
did not have alternators or electric start. Other than the length
they are pretty much identical.
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Next job was measuring all the parts to see if all tolerances
were in spec. Most was quite good but I had to irder a few small
parts. I also discovered there were already some Andrews gears
in there, nice! As I write this the parts have arrived so as
soon as I find some time I will put the transmission back together! |
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