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Ken555
On the Road
Joined: Fri Sep 28, 2007 7:39 pm
Posts: 573
Location: Aberdeenshire
GTM: Cox/Coupe
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 Rear Brake Cylinders What size is everyone running ?
Currently have 12.7mm (1/2") fitted.
Was thinking of sticking on Cooper S 19mm (3/4") one's on.
Theory is I can always reduce the pressure if I need to, so would rather have too much brake, than not enough.
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Member No 1185
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| Sat Apr 25, 2009 4:19 pm |
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West
Admin, and Coupe Nutter
Joined: Fri Sep 14, 2007 10:34 pm
Posts: 1762
Location: In the workshop
GTM: Cox/Coupe
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Re: Rear Brake Cylinders Back in the day of drums I ran
MGB GT V8 Cylinders which are a massive 20.32 mm
Gave the balance I was looking for and they are the largest cylinders you will find that fit within the mini drum, but you will find you have to adjust them regulary this is one of the reasons I did my big disc conversion including rear as I got fed up with adjusting them every 200 miles.
WEST
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IF wile e coyote had a GTM he would have one with Nitrous too! watch out road runner! The First GTM into the 11s then the 10s, PB 10.87 @ 125.5 Mph on A048 tyres, and fully road legal at Santa Pod
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| Sat Apr 25, 2009 5:57 pm |
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Dino
Ready for SVA
Joined: Wed Oct 03, 2007 8:54 pm
Posts: 375
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Re: Rear Brake Cylinders Did some looking into this a while ago, these are some of the available sizes/orig. applications that I came up with:
0.75" GWC 1102 Mini
0.8" GWC 1103 MGB & MGB V8
0.875" GWC 1122 Late BGT
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| Sat Apr 25, 2009 7:50 pm |
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Ken555
On the Road
Joined: Fri Sep 28, 2007 7:39 pm
Posts: 573
Location: Aberdeenshire
GTM: Cox/Coupe
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Re: Rear Brake Cylinders I guess those are 0.8" GWC 1103 ones. I think there is a bigger size available 7/8" seems to ring a bell.
The ones on the car at the moment are marked 29, but not sure how that relates to size.
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Member No 1185
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| Sat Apr 25, 2009 7:52 pm |
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rossabitz
Looking like a GTM
Joined: Wed Oct 10, 2007 7:18 pm
Posts: 157
Location: HUNTINGDON,CAMBS
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Re: Rear Brake Cylinders Hi
It's a long time ago, but I'm sure I fitted Ø7/8" cylinders to my
Coupe.
I have an invoice stating GWC 1311.
I think they are for Austin 1300.
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Alan Britton
HUNTINGDON
CAMBS
PE26 2SY
rossabitz@btconnect.com
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| Sat Apr 25, 2009 9:49 pm |
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Ken555
On the Road
Joined: Fri Sep 28, 2007 7:39 pm
Posts: 573
Location: Aberdeenshire
GTM: Cox/Coupe
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Re: Rear Brake Cylinders That's the one's.
Came off the back of a Rover SD1.
Rimmer Bros have them listed.
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Member No 1185
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| Sat Apr 25, 2009 10:39 pm |
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Ken555
On the Road
Joined: Fri Sep 28, 2007 7:39 pm
Posts: 573
Location: Aberdeenshire
GTM: Cox/Coupe
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Re: Rear Brake Cylinders Went for a pair of GWC1103 - 0.8" Austin 1300/MGB GT V8 cylinders in the end.
Just had to move the locating pin hole slightly to fit.
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Member No 1185
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| Sat May 09, 2009 11:11 pm |
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