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MG Midget and Sprite Technical - Frogeye rear brake cylinders

The rear cylinders on a Frogeye are single acting 7/8" bore. The later 1098cc Morris Minor are single acting 3/4" bore. Is there any advantage to using the smaller bore type if using discs on the front to reduce brake bias to the rear??
Bob Beaumont

Bob
When fitting discs to a Frogeye and changing to 3/4 inch bore master cylinder the norm is to fit 3/4 in rear brake cylinders to avoid what some call 'a pedal like porridge'.
The cylinders to use are Morris Minor 1962 -
Lockheed part no LW11287
repair kit LK11553
Alan
Masckent.org
Alan Anstead

Thanks Alan,

I was having a sort out in the garage and came across two pairs of new cylinders, one set is 7/8 and the other is 3/4. Its got 7/8 fitted at present. I have noticed that the rear wheels tend to lock up first if braking really hard and wondered if 3/4 bore would give a better balance.

I have got a 3/4 master and the pedal pressure seems ok (or I have just got used to it!!)


Bob Beaumont

This thread was discussed between 25/08/2013 and 26/08/2013

MG Midget and Sprite Technical index

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