Morris Minor Owners Club

Hello,

I need to fit new rubber seals to top and bottom trunnions on both sides. Can somebody please give me some advice on exactly how much of the front wheel assembly I need to dismantle to do this? I'd rather have an idea of what I'm doing and how long it'll take before I get stuck in!

Thanks.

The trunnion swivel seals can be replaced by removing the hubs & brake assys from the swivels, release the track rod ends, jack under the lower suspension arm (ensuring that the car is chocked and has axle stands under the chassis). Release the top trunnion from the damper arm/top pin. Unscrew the swivel from the lower trunnion, replace seal, screw swivel back into lower trunnion, unscrew the top trunnion from the swivel, replace the seal and screw the top trunnion back onto the swivel.
Re-assemble in the reverse order.
If you need to replace the bottom trunnion side seals you will have to undo the tie rod rear end and push to one side - split the thick/thin lower suspension arms (the thick arm does not need to be disturbed on the torsion bar) and slide the bottom trunnion off the bottom trunnion pin (the rear nut on the bottom trunnion pin does not have to be undone & the pin can be left in place) - replace seals and reassemble in reverse order.
Use the seals from Declan Burns for peace of mind and efficiency.

Time to do the job if no seized bolts and you have the necessary tools - 1 hr 20min per side.

As described by Phil, but to specifically answer your question about dismantling the wheel assembly, you will need to get the car on axle stands, then:
1. Remove the wheel
2. Remove the brake drum
3. Remove the hub and bearings (may need a hub extractor)
4. Remove the brake backplate. You should be able to do this without disconnecting brake pipes, so that you can then tie it back out of the way.
Then you are ready to follow Phil's instructions for releasing the top and bottom trunnions.
Best to have the Workshop manual to look at all this in more detail.