[T3] type3-vwtype3.org Digest, Vol 110, Issue 16

Jim Adney jadney at vwtype3.org
Sat Dec 7 14:29:56 PST 2019

On 7 Dec 2019 at 12:49, Fiesta Cranberry wrote:

> Just wanted to let y'all know that it wasn't the steering box after all.
> It's the brakes.   I filled the reservoir up, and a few days later, it was
> back down to about half an inch or so.  I need to get in there with a
> flashlight to see if there's a crack in the reservoir, or maybe in the
> rubber lines that connect it to the metal brake lines.  It's been raining
> pretty hard, so as soon as I get a dry day with good light, I'm gonna
> look.  Brakes seem to work OK with such a low fluid level in the
> reservoir.  I put new cardboard under the car inthe garage, and the stain
> goes from the driver's side front wheel to the center of the car, between
> the front wheels.

My bet's on the master cylinder. They typically fail by leaking out the "mouth" 
and drip down to the floor. Once on the floor, it finds it's way under the 
tunnel and there's a place at the front of the tunnel that lets it drip out.

Run your finger down along the brake pedal shaft, then forward along the 
pushrod until you find the rubber boot that covers the mouth of the master 
cylinder. Run a finger all along the underside of the boot. If your finger 
comes up wet, you've found your leak.

I rebuild master cylinders for a fraction of the cost of a new one. That's the 
best and most economical way to fix this.

Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA

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