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Brake Master Cylinder Bore Sizes


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#1 gooley

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Posted 28 December 2008 - 08:06 PM

my uncle has asked me to buy a master cylinder cos it has a bigger bore and he says mine is a smaller one.. Just wanted to know how many different master cylinders are their for the LC/LJ model with different bore sizes.? What are the advantages of fitting a bigger master cylinder? Does the brake pedal feel different? What are the sizes?

Edited by gooley, 28 December 2008 - 08:08 PM.


#2 _Bomber Watson_

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Posted 28 December 2008 - 09:55 PM

Im nearly certain that LJ has the same 1" bore as the Kingswoods do.

I believe early LC had 15/16" bore??

And a smaller bore will make the pedal easier to push but you must move it further to displace the same volume of fluid, or cause as much braking force as a larger bore, which will be harder to push but require less movement.

All the above is my understanding and may be incorrect, awaiting someone to confirm.

cheers.

#3 dattoman

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Posted 29 December 2008 - 07:41 PM

They are all 1"

Unless its a 4 cyl with a plastic bottle

#4 gooley

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Posted 05 January 2009 - 08:32 PM

do you recommend i should fit a bigger size one??

#5 dattoman

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Posted 06 January 2009 - 07:13 PM

If yours is all cast iron or alloy
Its 1" and there isn't a bigger one

Why would you think you need a bigger one anyway




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