Date: Sun, 11 Sep 2011 14:45:50 -0700
Reply-To: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject: Re: Brake Fade
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reply-type=response
sounds like progress.
I always put 'disc brake quiet' on the back of the pads myself.
I wouldn't go by appearance so much as how they feel and work..the front
discs and pads.
did you check for smooth movement of front caliper pistons..
and guide pins if it's the later style ?
I don't think you over did it especially ..
some hot brake smell by itself is not a big deal.
wheel cylinder 'pulling back' ?
perhaps 'weak' ?
----- Original Message -----
From: "Edward Maglott" <emaglott3@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Sunday, September 11, 2011 2:18 PM
Subject: Re: Brake Fade
> OK, here's the next report. the 2 products the auto tech instructor
> loaned me are, CRC De-Squeak spray, technician grade. "spray a light
> even coating on the friction surface of the rotor." So I did
> that. It goes on like light paint. The other one is Wynn's Stop
> Squeak to put on the pads. It's a thin liquid that seems to have
> very fine particles suspended. About 3-4 drops on each pad, spread
> it around and let it dry. Then repeat and let it dry at least 15
> minutes before reassembly. So I did that. Then I drove slowly
> around the block a little testing things out. Braking effect was
> reduced on the first few applications. Then I went and made some
> moderate stops from 45 to about 10mph. 4 or 5 of those in fairly
> rapid succession and I could smell the brakes and was just starting
> to feel the fade on the last stop. (maybe I did too much?) Then
> gentle drive home, about a mile, maybe 5-7 minutes. Read brake temps
> with IR gun. Hard to get a good reading through the holes in the
> wheels, but I took the highest
> readings. Fronts: 330/360. Rears: 224/197. I have a wheel
> cylinder replacement coming up and want to check out the shoe
> shimming that Dennis mentions. I have a feeling the temp difference
> on the rears is due to the one wheel cylinder pulling back.
>
> I let it cool completely and pulled one wheel off and took a look at
> the pads. They seemed to be glazed again. Put them back and drove
> on an errand and they seemed fine in terms of noise and pedal
> effort/effect ratio. When I got home I did the temps again and they
> were more even left-right than before.
> Edward
