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MG Midget and Sprite Technical - Brake master bore size

Can anyone please confirm what the bore size of the Lockheed can-type single line brake master cylinder fitted to 71 midget is please - conflicting opinion on the web...also the pipe fitting...3/8 UNF?

Need to understand what I have in order to possibly go up in bore size to accomodate the larger calipers up front.

Many thanks as ever
Oggers

Oggers

GMC151 - should be 3/4" bore.

Alternative sizes (Girling): https://www.merlinmotorsport.co.uk/s/brake-clutch-parts/master-slave-cylinders

Cheers
Mike

M Wood

mike

Thanks for that. brakes slightly improved but could be better. Merlin does indeed have some suitable alternatives - thanks again.
Oggers

I'm sure as a kilted one you'll shop around! Try
https://www.jjcraceandrally.com/race/brake-master-cylinders-accessories

and worth giving these people a call, too.

http://www.performancebraking.com/products/

I recently bought some rather expensive m/cyl rebuild kits and when they arrived they were in PB packaging!
David Smith

This thread was discussed between 12/07/2018 and 15/07/2018

MG Midget and Sprite Technical index

This thread is from the archive. The Live MG Midget and Sprite Technical BBS is active now.