Date: Mon, 28 Apr 2014 12:47:52 -1000
Reply-To: "SDF ( Scott Daniel Foss )" <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: "SDF ( Scott Daniel Foss )" <scottdaniel@TURBOVANS.COM>
Organization: Cosmic Reminders
Subject: Re: Eccentric hub?
In-Reply-To: <01bf01cf6248$3ae07670$b0a16350$@gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I've seen this caused by several things..
some you wouldn't expect even.
usual suspects are out of round drum'/s,
rotors with excessive runnout or varying thickness ,
and those sorts of 'brake' things.'
but also ..
a tread desperation failure in a tire,
or out of round or dented wheel rim.
also ..
uneven friction surface on drum or disc ...
so it's grab'/ not grab so well/ grab well again , etc.
try to isolate it to front or rear to start with.
it's easy to check tires/wheels for roundness ...
just a quick jack-up one corner at a time.
the brake that drags 15 % of the way around..
I'd look at that one very carefully.
I have talked to professional brake techs that ...
'never ever turn any disc or drum' ......intall new usualy..
or ..
turn ever single disc or drum whether good used or brand new in the box.
and even THEN ....smooth even function brake function is not guaranteed
100 % of the time.
Scott
ne turbovans
there's quite an oppotunity and inventory of Vanagons and vanagon stuff
in southern orgeon for the right person.
pmail if intersted.
On 4/27/2014 8:40 AM, Stuart MacMillan wrote:
> Are you sure it's not warped front rotors? What happens at 50 mph, and are
> you breaking? A pulsing pedal or jiggling steering wheel when breaking
> usually means warped rotors.
>
> Get a $35 clamping dial indicator (or make our own clamp set up for the $15
> one) from Harbor Freight and check the run-out on the rotors and rear hubs
> before you tear into them.
>
> Stuart
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> Gnarlodious
> Sent: Sunday, April 27, 2014 8:10 AM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Eccentric hub?
>
> Some years ago my brakes started wobbling. Nothing serious, but at
> speeds above 50 it is very noticeable and possibly hazardous. So I
> finally put new high quality ATE drums on and it still does it! So I
> wasted my money!
>
> Is it possible a hub can be bent on one side? As I rotate the wheel I
> can feel the brake scrape over about 15º of rotation. How could that
> happen? Bad driving? The problem started about 4 years ago when I had
> "Just Brakes" rebuild my system. Could some heavy equipment they used
> have damaged my hub?
>
> Wheels are not warped, all original that came with the van. Even
> noticed they are stamped 10/83 from the factory.
>
> Any ideas, please. Regardless, I think I am stuck putting on a new used hub.
>
> -- Gnarlie
>
