MG
The Classic Marque

I believe there should be a small bevel on the side that goes to the flywheel to accomodate any small fillet from the machining of the step.
Chris

Yes, I think its a MGA/MGB ring gear not a TD. Confirm what William said, but I wouldn't use it myself.

Many thanks Will. I'm sure Barney won't mind.

Barry

Willie,
The hardened washers on my HRG- Derrington head are 7/8" (21.2 mm) diameter x 1/8" (3 mm) thick - these are the same size that you thought they should be (in the ceramic coating thread). My head studs are 7/16" dia (original MGB are 3/8" I recall) so may give the illusion of the washers being smaller.

I also found the HRG service bulletin advising head stud torque to be 32-35 ...

From what I can find there are two ring gears available and two matching bendix drives
As long as you have a new bendix that's matched to your new ring I guess it will be ok , but I'd check up just to make sure

Barry
Pinched this off the MGA-GURU site
I'm sure he won't mind , hope it helps
willy

SEAL For FRONT HUB - FS-131

Cross reference list for the oil seal for front wheel bearing hub, all MGA except Twin Cam and "Deluxe" cars. Also for MG TC, MG TD. MG TF, MG YB, MG ZA, MG ZB.

Seal Dimensions:
Inside Diameter: 2.125 in (53.98 mm) -- 2-1/8" shaft size

Peter. I have two glove boxes, one with a hole in it, so I can use it for practice. Sounds easy.

Willy,
I am also not sure of the science behind ceramic coating the extractors other than reduction in engine bay temperature (maybe not so big an issue with a cross flow head especially if a cold air box was fitted). My other reason for pursuing is aesthetics - a nice shinny exhaust looks better than a rusty one!

Interesting in Peter's book "How to ...MGB four cylinder engines" P105...

Can someone please supply a Part Number or specification, for an oil seal - front hub Wire Wheel.
Moss catalogue part No: 120 - 600. (1600)

Barry.

I don't think that machined side is a leed in, the taller side goes towards the gearbox i believe and is the side the bendix comes at it from
happy to be wrong --I'm no t type expert
That ring gear looks wider than your original from the pics , might pay to check up and make sure it's not an MGA one
willy

http://www.mgaguru.com/mgtech/clutch/ft_101.htm