Fixed. Downgraded, but fixed.
Nice unmolested standard F20 3.55FD purchased, thanks Ben/Nemesis
The box came running a hydraulic setup, which was very easy to swap over to cable. Remove the hydraulic release bearing, and wiggly pipe:
And replace with a standard release bearing sleeve with new input shaft seal. Then the manual cable arm etc fits as normal.
Holy moly was the castle nut tight. No sealant or funnies, just mega tight. Lots of WD40 and a professional tool built:
Which fits like so:
And the old diff was out.
The Quaife ATB was stripped down and thoroughly inspected and cleaned. All the worm gears were cleaned and some of the outer gear surfaces were dressed and cleaned:
Cupped washers for the diff pre-load fit alternating in-out-in etc:
And fitted up with the new boxes crownwheel:
The rest of the box got cleaned up inside and out, taper bearings set and all fitted up:
Box fitted, and a bonus replacement inner CV which was discovered knackered at Cadwell:
Test drive success. And a bonus picture, R1Rs are now on powdercoat black Cesaros and 5mm spacers. Mmmmmmmmm I like it.
Bought another set of Cesaros too (4 and a half sets now!), oops
Is this a road only car now?
Helical gears and not leaking exhaust fumes into the cabin, I think I'll use it as my daily driver now.
Irresponsible place to stop. Or was it broken down again?
I can only see yellow lines, werent you supposed to be photographing the car?
Good to see this car still developing, well done Iaiain
Nice rebuild on the box. You've gone back to a cable change now?
All I wanted was a Pepsi, just one PepsiFar from suicidalStill I get them tendenciesBringing back them memories
That I really miss when I reminisce
The cable change was due to being a hydraulic clutch F20. I wasn't aware they even made one but it looked factory. The right lumps are on the casing to allow it to be converted back to the original release bearing and arm.