Assembled tool-
Split collet-
Assembled on stud-
Notes:
1. The O-ring shown is just to save me losing the collets when not in use....
2. I have long ago forgotten how to draw in CAD, so here are the collet machining details:
Machine the pair in 1 piece from bar stock 1045 or better- I used a bit of 4140. No heat treatment.
Collet body diameter 0.750" (19.05mm) x 20mm long.
Flange diameter 23mm x 2mm wide. [edit] this was 24mm but I've reduced it so the tool works on top arm bearings.
Tap M12 right through.
Slot 5mm wide end to end, to make 2 collets. I used a slot drill in the mill, held in vice, did 1 side then turned it over.
Deburr edges, hold the pair of cut collets in a 4 jaw chuck and clock up the oval flange so it's concentric.
Turn the flange to 0.740" diameter, so that it will fit through the bearing.
Stud is 12mm threaded rod, 120mm long.
To use, drop the collets into the bearing, check they are level with each other and screw the stud in. Then drop a Mini drive yoke over it, fit washer and tighten nut. You could make up an outer body instead, but this works fine.
I warm the alloy up a bit (200C?) with a hot air gun to reduce drag.
This tool works with both the 1" OD 3 synchro idler bearings, and the 1-1/16" OD 4 synchro ones. it is NOT for A+ housings.
[edit] It will now also remove the front suspension upper arm needle roller bearings. Use with a 1-1/16" or 27mm, 1/2" drive socket.
