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 vwo60
Veteran Volks Folk
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| posted on January 12th, 2013 at 09:28 PM |
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front disc residual valves.
I have just installed my new front disc brakes using a set of four spot calipers, the rears are a set of CB performance rotohubs, i have not been able
to get a consistant brake pedal, after it was bleed the pedal was good but then after some use it began to increase in travel, i had a look at the
calipers and there was no drag on the rotor's and the pads had moved away from the disc's, i ordered a set of 2LB residual valves and installed them
today, what a difference, the brakes now have a small amount of drag but there is no increase in pedal travel with use, the pedal has good feel and
does not change, if you are having a issue with to much travel on a disc brake conversion a larger diameter master cylinder is not necessarly the
answer, if the pads are moving away from the rotor's this could be the fix.
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vlad01
Compulsive Aussie Vee Dubber
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| posted on January 17th, 2013 at 02:39 PM |
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where did you get them from?
71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE |
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68AutoBug
A.k.a.: Lee Noonan
Aircooled Master
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| posted on January 17th, 2013 at 03:56 PM |
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on VW [ate etc[ disc brake master cylinders there are residual valves to keep slight pressure on the front calipers.
the residual valves screwed into the top of the [disc] master cylinder and the two front pipe fittings screwed into them.
on USA front drum brake master cylinders [no beetles had discs in the USA] the pipe fittings screwed straight into the master cylinder and were a
different size so the two different master cylinders couldn't be used by mistake..
as the pipe fittings for drums didn't fit the disc master cylinders with or without the residual valves...
[Only Karmann Ghias had discs in the USA]
LEE
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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vwo60
Veteran Volks Folk
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| posted on January 17th, 2013 at 06:47 PM |
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Wilwood make a 2lb and a 10lb residual valve, the only master cylinders with residual valves that i have seen on a vw was the drum brake 74 poverty
pack beetle, i have never seen them on a disc brake master cylinder, live and learn.
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68AutoBug
A.k.a.: Lee Noonan
Aircooled Master
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| posted on January 17th, 2013 at 07:55 PM |
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| Quote: | Originally
posted by vwo60
Wilwood make a 2lb and a 10lb residual valve, the only master cylinders with residual valves that i have seen on a vw was the drum brake 74 poverty
pack beetle, i have never seen them on a disc brake master cylinder, live and learn.
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Hi
Looks like I got it the wrong way round as it was a beetle owner in the USA having the residual valve problems..
His pipe fittings were the wrong size to screw into His New master cylinder..??
so, the drum brakes must have the residual valves...
as the disc calipers are designed to keep the pads close to the discs [self adjusting] ...
even as the pads wear..
I stand corrected... cheers
LEE
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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