11-08-2020, 10:49 AM
I wondered if anyone could shed some light on an issue I’m having with my Austin 7 Cambridge special.
Whenever the car is in reverse it jumps up and down/judders when setting off. Once it’s rolling it seems to be ok but as soon as a slight gradient happens it’s back to jumping.
Some background:
The cars rear axle was in pieces when I got it. I’ve put this back together using the woodrows red book for reference and think this is all okay. It’s got new lip seals and bushes on the diff carrier.
The car does work perfectly in forward gears. 1st gear does seem a bit “sharp” if that’s the right word.
It also pushes forwards and backwards perfectly with no resistance or jump so it’s only when it’s driven.
The car has hydraulic Morris 1000 brakes. The hoses, lines, cylinders, master have all been replaced with new. The shoes have been given a chamfered edge to try and stop.
We’ve also removed the hand brake rod to see if they brakes were being held on with no change to the jumping.
It also doesn’t jump if the rear wheels are jacked up and run in reverse so only when there is pressure/weight on the wheels.
It’s not a massive issue but it would be nice to be able to reverse rather than get out and push
At a bit of a loss as to what to try next so suggestions welcome!
Whenever the car is in reverse it jumps up and down/judders when setting off. Once it’s rolling it seems to be ok but as soon as a slight gradient happens it’s back to jumping.
Some background:
The cars rear axle was in pieces when I got it. I’ve put this back together using the woodrows red book for reference and think this is all okay. It’s got new lip seals and bushes on the diff carrier.
The car does work perfectly in forward gears. 1st gear does seem a bit “sharp” if that’s the right word.
It also pushes forwards and backwards perfectly with no resistance or jump so it’s only when it’s driven.
The car has hydraulic Morris 1000 brakes. The hoses, lines, cylinders, master have all been replaced with new. The shoes have been given a chamfered edge to try and stop.
We’ve also removed the hand brake rod to see if they brakes were being held on with no change to the jumping.
It also doesn’t jump if the rear wheels are jacked up and run in reverse so only when there is pressure/weight on the wheels.
It’s not a massive issue but it would be nice to be able to reverse rather than get out and push
At a bit of a loss as to what to try next so suggestions welcome!