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>From: "R. Kastner" <kaskas@earthlink.net>
>To: "Richard Taylor" <n196x@mindspring.com>, <fot@Autox.Team.Net>
>Subject: Re: Wheel bearings
>Date: Mon, 1 May 2000 20:45:26 -0700
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>Most of the cars have a pressure residual valve in the brake system. This
>is found on the left side of the engine compartment down on the frame rail
>(probably). This is a hex shaped piece about three inches long. The purpose
>is to stop the brake pads from being knocked back so far that you have a low
>pedal. BUT this will give a lot of drag when you are just sitting still as
>the valve relies on the movement of the wheel and the flex of the stub axle
>to keep the pads knocked back a little and thus NO DRAG. If you take a good
>hard knock at the top and then the bottom of the tire while jacked up the
>pads will be knocked back slightly and the wheel will be like a loose goose
>( an expression used in some parts of the USA) ( that 's a technical term).
>To have a good pedal on the brakes be sure to bleed the valve before you
>bled the balance of the brakes. Bleed the valve on the far end away from the
>master cylinder.
>----- Original Message -----
>From: Richard Taylor <n196x@mindspring.com>
>To: <fot@Autox.Team.Net>
>Sent: Monday, May 01, 2000 6:25 AM
>Subject: Wheel bearings
>
>
>> Fellow FOTers,
>> On the fifth lap in the HSR Enduro yesterday at Road Atlanta, I had my
>> right front wheel-bearing blow out. No whining, no growling, no wobble,
>> just PUUSHH! The tire went catywompus; billowed huge amounts of smoke
>> until it blew. Then there was just the lumpy excursion off into 50 yards
>> of freshly mowed grass. Since it was so early into the race, I had an
>> exclusive (but rather lonely) spectator spot.
>>
>> Alan Pinel lent me his spare wheel bearing kit so I got to run the Vintage
>> Race that afternoon..and did OK.
>>
>> This brings me to the question. What is the accepted drill for checking
>> wheel bearings? I wiggled the tires before the qualifying race and they
>> seemed fine. Does just tugging at the top of the tire really tell you
>> anything?
>>
>> But even after I got the whole wheel back together, there seems to be an
>> awful lot of drag. The wheels on my everyday car, a 30 year old 911, spin
>> effortlessly. For the life of me I can't get the TR-4 wheels to do this.
>> Especially the front ones. The 911 has a spring deally at the top of the
>> brake pads to keep them from dragging. The Triumph pads seem to take a
>> much longer time to release completely. What's the preferred drill on
>this?
>>
>> I'm sorta embarrassed to ask this august group about something as
>> elementary as wheel bearings but, hey, we're family, aren't we?
>>
>> Richard Taylor
>> Atlanta
>> TR-4
>>
>>
>>
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