Text 21607, 61 rader
Skriven 2008-10-06 16:14:07 av Roy Witt (1:397/22)
  Kommentar till text 21594 av Robert Bashe (2:2448/44)
Ärende: Cars
============
06 Oct 08 12:48, Robert Bashe wrote to Roy Witt:

 RB> Roy Witt wrote to Robert Bashe on Sunday October 05 2008 at 11:57:

 RB>>> The only thing I remember on motorscooters (specifically the
 RB>>> Cushman Eagle) was a centrifugal cluth that kicked in when you gave
 RB>>> gas. I can't remember any automatic transmission.

 RW>> The Cushman's rely on a variable cone similar to the DAF variomatic
 RW>> to change the drive ratio. It has a centrifugal clutch that engages
 RW>> when engine RPM increases from idle and the variable pully changes
 RW>> from low to high as the scooter's flywheel increases in speed.

 RB> Sounds reasonable, but all I remember is the centrifugal clutch. You
 RB> have no idea how I envied the kids who could afford such things ;-)

I had that problem too. If I couldn't aquire it on my own, then there was
no reason to bother dad to borrow a few bucks.

 RB> Unfortunately, my parents not only didn't have the money to finance
 RB> one, but my mother was also really paranoid about motorized
 RB> two-wheelers, having once been involved in a bloody motorcycle
 RB> accident (she and my dad had to carry an injured person 20-30 miles
 RB> to the Wichita Falls hospital in their car at the request of the
 RB> police). When I bought my first two-wheeler - a "Whizzer" - I had to
 RB> do some fancy talking to keep it.

Kinda like my 'sidewalk' car that I paid too much for from paper route
collections.

 RW>> My dad owned a few Cushmans when I wasn't old enough to ride them
 RW>> beyond the end of the lane. When I turned 15, I bought a Whizzer in
 RW>> a basket and that was my first ride (and my first basket project).
 RW>> It too had the centrifugal clutch, but no transmission.

 RB> Really? My Whizzer had a clutch (to tighten the belt from the motor
 RB> to the rear wheel), but no centrifugal clutch or transmission. You're
 RB> not thinking of a Simplex, are you? As I remember, that had a
 RB> centrifugal clutch like the Cushmans.

My dad had a Simplex in his collection. No, mine wasn't a Simplex.

 RB> Incidently, my Whizzer was not in running shape when I bought it (for
 RB> $20), and I had to completely rework the motor and even braze the
 RB> frame in the school shop to get it running again. I learned a lot
 RB> about motors doing that.

I had to put the engine back together too. I had the hardest time finding
rod bolts. I'd never even heard of 'socket head cap screws' before and my
search for them took me all over town (on my bicycle). To top it off, they
were 1/4-28-UNF threads, which made them even more impossible to find.
Years later, I worked in a factory that made those bolts and then
apprenticed in a shop as a Tool & Die Maker, where I had boxes full of
them. That Whizzer was the first time I'd ever seen roller rod bearings.

                R\%/itt



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