[Mgs] MGA master cylinder bore size - a little OT

Barney Gaylord barneymg at mgaguru.com
Mon Feb 18 23:55:04 MST 2008


At 08:46 PM 2/18/2008 -0800, Howard Battan wrote:
>Can somebody please tell me the bore size for the MGA brake/clutch master
>cylinder?

MGA master cylinder is 7/8" bore.

>I have a friend in Ireland with a 1955 Morris Oxford Series 2 car

Should be the same as MG ZA/ZB Magnette.

>who thinks that the brake/master cylinder is the same as that for 
>the MGA, and needs a rebuilt or new master cylinder. The unit looks 
>the same as the MGA unit, but we would like to confirm the bore 
>sizes to be sure.

I think it's the same as MGA, but not absolutely sure.

>Or if someone can confirm that the units are the same, that would be 
>a great help, too.
>....

Spridget with 1098cc engine is 3/4" bore, but all other Spridgets are 
7/8" bore, same as MGA.  Similar master cylinder is used for many 
other cars of  the period, nearly identical in appearance but not all 
the same bore.  I do not have list of sizes of others.

Barney Gaylord
1958 MGA with an attitude
http://MGAguru.com


More information about the Mgs mailing list