Zenith Accelerator Pump Shaft Assembly

[Hawkeye]

I have a situation where this roller is binding (Zenith 40TIN) & isn't turning freely on the accelerator pump actuator shaft. In the photo,
one can just barely make out the plastic (?) bushing which may have failed. The PET # for the (lever complete) portion of the
throttle crank/accelerator pump shaft assembly is E911-100-920-00.

A search on aftermarket parts sites using this number has provided “0 results” so far. The roller has not completely seized but does not
(probably hasn’t for some time in the past) operate properly & the resultant skidding of the roller has caused a small wear groove on
the roller. A close examination of the bushing (aided by a relatively high powered magnifying lens) shows the bushing has degraded to
a point it should be replaced for the roller to function properly.
I am assuming this is in fact, possible.

Any suggestions or solutions regarding how I may be best able to rectify this problem, short of acquiring a complete pump shaft assembly,
will be greatly appreciated.

Stay safe everyone
Thanks & Cheers
JB

[stephers]

It all looks pretty clean, did you take it apart and have a look at the bushing? Maybe it just needs a little internal lubrication Worst case, get a piece of delrin rod and make up a bushing Somebody with a small lathe to whip one off in a few minutes

[1QuickS]

It is a Teflon bushing and you have to make a new one. The material thickness is the same as used for the throttle shaft bushings used in Weber carbs from early 1967 through the last ones made. You can buy these bushings and cut them with an xacto knife using the Zenith ones as a template.

Here is link to buy Weber bushings: http://youroil.net/shaft_bushing.html