Re: e-tek motor side loading

[Douglas Hartley <douglas.hartley@sympatico.ca>]

I have made a motorcycle conversion using this motor and chain drive
with sprocket on the motor shaft. (See austinev.org/evalbum/343.html) I
am expecting (hoping?) that the motor can handle the side loading if the
sprocket is not mounted too far out on the shaft and the chain is not
adjusted too tight. I don't have enough mileage yet to prove anything
(just finishing and winter is not ideal for extensive use).  Probably
the main weak point will be the set screw/key mounting of the sprocket
adapter on the shaft - it tends to get loose.  The last assembly I did
with gasket goo around the set screw threads and keyway.  Some kind of
tapered hub/key with a bolt on the end of the shaft, retaining and
applying pressure, would likely be better. I think I will try to do it
this way and keep the best solution.

With no low gear, acceleration is not great from a standing start, but
this motor is great for its small size and low weight and ease to mount
with the sprocket in the original ICE sprocket position.  However, I
find it noisier than expected, perhaps some due to ripple from the
controller and some is chain noise you can't hear with the original ICE
running.
Good luck - lets exchange ideas and results....

Doug
"If it is worth doing, its worth doing badly (rather than not at all -
just be safe)"

Jeremy Green wrote:
> 
> Hello,
> 
> My brother is preparing to start work on an E-Tek powered motorcycle.
> I am guessing he will probably do chain drive.  I was wondering if
> the E-Tek motors can handle the side loading of having a sprocket
> directly on the motor shaft.  Does anyone have experience with this?
> Thanks,
> 
>                 -Jeremy