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 pete wood
A.k.a.: figure itout
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 posted on September 8th, 2004 at 12:59 PM |
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twin circuit master cylinder bore?
does anyone know the bore diameter of the 1500-1600/type 3, twin circuit, brake master cylinder?
is it 23mm or 19mm or what?
I have one to suit the type 3 rear brakes I have, but I think it's the same as the beetle units.
Only reply if you know for sure please. I am trying to fix my brake bias issues and I need exact figures.
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 vw54
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| posted on September 8th, 2004 at 06:42 PM |
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yep type 1 and 3 are the same 19mm.
And the rear wheel cylinders are also 19mm
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pete wood
A.k.a.: figure itout
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| posted on September 9th, 2004 at 08:33 AM |
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thanx dave, :kiss
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MikeM
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| posted on September 9th, 2004 at 05:21 PM |
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If you are looking the play with the bias the easiest way to do that is with different sized wheel cylinders.
Another point of interest is a Porshe 944 Master Cylinder apparently has a different bore for front and rear of the dual circuit.
For more info on Changing over your master cylinder and a few more options that could be considered check this site out:
http://www.airsouls.com/how-tos/master_cylinder.htm
By no means complete, but interesting all the same.
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pete wood
A.k.a.: figure itout
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| posted on September 9th, 2004 at 06:11 PM |
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I actually can't do anything with wheel cylinders coz I already have 23mm cyls in my rear type 3 wagon breaks, and the front brakes are discs.
But,
I have found a solution to the bias issue I think. I have a Volks conversions front disc set up and after talking to John Sherman, I am using the next
size smaller bore Mazda caliper (than the one I have now).
This will also improve the pedal feel abit too, should only cost around $100. And I can keep the bugger calipers for later if I ever want to go to
monster discs on the back. My engineer is happy with this too... :thumb
But thanx for the tips. Buggies are an enigma to even the most experienced dubber, so it's nice to have some experienced people on hand.
:kiss
[Edited on 9-9-2004 by pete wood]
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