Wobbly Right Rear Hub

[Paul Lomas]

Who else has noticed this?

I noticed there was excessive play in the right rear hub after my first meeting. I put it down to a possible hard knock stretching the plastic round the hingepin and making it loose.

5 meetings later I have finally got round to stripping it to fit a new one, which was exactly the same! It appears the mould for the right hub is producing an oversized hole for the hingepin. The left is fine.

As a solution, I've drilled a small hole on the underside of the hub into the hingepin hole, and tapped it to M3 for half its depth. I've now rebuilt the car with an M3 grubscrew clamping onto the hingepin. The play is gone and there's no binding in the suspension as the hingepin is rotating fine in the wishbone.

Not sure how much of a difference I'll notice on the track, although going from having one wheel able to alter its toe in from zero to 6 degrees and now having it set at 3 degrees should make a change.