AirSpeed VW Community Forums

Technical => Brakes Forum => Topic started by: J A Red on May 01, 2017, 11:10:11 PM

Title: Front disc weird problem.
Post by: J A Red on May 01, 2017, 11:10:11 PM

I've converted my 56 bug over to front disc brakes. Been having a strange problem. After getting the lines bled I'll take the car for a spin. While at full steering lock (either direction) I loose all brake pedal pressure and have no brakes. Once the steering has straightened up I can get the brakes back by pumping the pedal. its Empi's front disc conversion kit w/ drop spindles, brake hoses aren't getting pinched or stretched that I can tell. Thinking of switching out the rubber hoses for braided to see if that helps. Any thoughts?

Title: Re: Front disc weird problem.
Post by: BUSDADDY on May 02, 2017, 07:32:18 AM

Some sort of slop in the wheel bearings pushing the pads back when in a turn?, go drive around in a circle somewhere safe and see if the reservoir level rises.

Title: Re: Front disc weird problem.
Post by: Bruce on May 08, 2017, 10:20:47 AM

Do you have a single or double cct master cylinder?

Title: Re: Front disc weird problem.
Post by: J A Red on May 13, 2017, 12:31:09 PM

Bruce, I have a new dual master. The one that is recommended for this application.

Title: Re: Front disc weird problem.
Post by: mitchy965 on May 13, 2017, 01:39:57 PM

get the car on jack stands with the wheels off. have a pal on the pedal.spin the rotor by hand whilst holding pressure on the pedal and steering lock to lock.  some times a visual with help to locate the problem. i use a rounded jaw clamp tool to pinch off the hoses to isolate brake hydraulics. you can clamp off the rears to isolate the fronts to further narrow down the issue.