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1500 beetle front disc brakes catching

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rob53 Officially Full-On Dubber

385 posts · joined Jan 2007 ·

#565749
Hi all,
My 1970 1500 beetle has a bit of an issue with the front disc brakes.

They seem to just catching the disc when driving, when the brakes are not applied, so the result is that you can hear the high pitched noise when driving around 40-60 kmph (25-38mph).

Are there any possible adjustments that can be made.
I have the newer mexican callipers installed, (with 2 or 3 pins?).

The brake peddle does not shudder when I brake, so I don't think the disc's are warped.

And I don't think the callipers are seized because they are about 2 years old. Also I have new brake lines installed on the front. (been through 2 seized callipers before)

aussiebaja Insano Dub Head

738 posts · joined Jun 2006 ·

#565773
some cars have little scrapers on the pad thar start to squeal when the pads are low and need replacing,but ide say that would make a noise all the time
BETTER TO BE THOUGHT A FOOL THAN TO OPEN YOUR MOUTH AND REMOVE ALL DOUBT:puke

lohoon Wolfsburg Wizard

466 posts · joined Sep 2002 ·

#565778
I have had this happen too! It used to happen when the car was parked in the sun all day.I replaced the calipers.Didn't do it for a few days and then the pads would start to drag again.Some times you could feel the pedal was harder than usual.I then replaced the brake lines.Stopped for another coupla days and then returned.I pulled the master clynder to see if any blockages or crap was inside.I swapped it for a recoed one and problem gone....for now anyway.
Hope this is some help.

ExQuokka Learner Dubber

8 posts · joined Jan 2007 ·

#565960
Yes, the master cylinder can cause such problems - but first, are the brake pads brand new? Do they have a chamfer on the lead edge? The pads may be baulking a little on the discs, due to either the pads, or the calipers not being mounted solidly enough - make sure everything is torqued to spec

rob53 Officially Full-On Dubber

385 posts · joined Jan 2007 ·

#566041
The brake pads are about 2 years old, as they got replaced at the same time when the new callipers were installed.
The bearings are ok, and were replaced about 3 years back.
I think the everything has been installed to spec with regards to the pads and the callipers.

If the front end is jacked up, then wheels just catch at one point when turning by hand.
Thats not rust, it's ah ... orange primer ... yep that's what it is ...

rob53 Officially Full-On Dubber

385 posts · joined Jan 2007 ·

#566278
I will check out the rubber hoses, but I think they should be ok since they were replaced about 2 years ago also.
Thats not rust, it's ah ... orange primer ... yep that's what it is ...

greedy53 Bishop of Volkswagenism

3,062 posts · joined Mar 2006 ·

#566395
sounds like your master cylender is on the way out they won't return or they o it slowley thus making the pads drag
get a mate to watch while you push the pedal see if it coming back all the way

[ Edited on 22-1-2007 by greedy53 ]
👍👍😂🙅🥷😬🤓

MickH Hairy Gutted Sloth

3,389 posts · joined Sep 2003 ·

#566399
rob53 wrote:..........
If the front end is jacked up, then wheels just catch at one point when turning by hand.
That would sugggest the discs are warped.Get them machined or replaced.
tssnq.com.au

rob53 Officially Full-On Dubber

385 posts · joined Jan 2007 ·

#566503
The Discs are pretty shiny so I suppose I should get them machined.
How much roughly are new or used master cylinders?

[ Edited on 22-1-2007 by rob53 ]
Thats not rust, it's ah ... orange primer ... yep that's what it is ...