Sunbeam Tiger Throttle Linkage Upgrade
As with many items on the Sunbeam you find things that bug me. One was the throttle linkage and how crude it
was. Basically stamped sheet metal bracket and a stamped sheet metal arm. I won't get into the crazy bent up
pedal arm, that's just how that is to make it fit, but all the rest is cave man era stuff. This project outlines how I did
a version that bolts into the stock location and pretty much uses only the pedal assembly. The upgrade does
make it a bunch stronger and smoother.
Tools and Supplies Needed
Various Drill Bits, I mostly used a UniBit for the aluminum
RivNut inserts for each seat rail and matching drill bit (17/32" as I recall)
1 - approx 5" of 1.5" x 1.5" angle bracket, I used 3/16" thick
2 - 3/8" Rod Ends. I used aluminum as they were red and nice looking, steel are fine too
1 - 3/8" Split collar (eBay, Mcmaster Carr, etc)
Sharpie Marker
Nuts and bolts for mounting
Below is the design I used. Your width may vary a bit due to how you want your split collar to be used,
it can be omitted and a cotter pin and washer like the stock arm has. Mock it all up to get the length.
The reason I added the split collar is that I could remove it and put it on the front of the pedal to give
some adjust ability. If you want to change the position of your pedal, factor that it as well.