Try replacing the rubber brake line to the caliper. Over time they swell
up internally, allowing that caliper to clamp, but not to release. (Pedal
pressure is enough to force through, but the back pressure of the calipers
isn't enough.)
If you don't want to replace the hose blindly, step on the brake pedal
really hard, like an all-out panic stop. Then jack up the wheel in
question and try to turn it. If it's stiff to turn, open the bleed screw
on the caliper for a moment, then close it. If the wheel is now easier to
turn, it's probably the brake hose.
Chris Kotting
ckotting@iwaynet.net
On Thursday, March 05, 1998 11:49 AM, chasdoug@gte.net
[SMTP:chasdoug@gte.net] wrote:
> My left front wheel bearing continues to overheat, even after completely
> rebuilding it with new bearings and using a higher temp grease.
>
> I'm afraid I'm only a weekend mechanic, and this has me baffled.
>
> After about 45 minutes of 40mph+- driving, the left front wheel starts
> squeaking -- really kind of a chirp -- with each revolution. The brakes
> start squealing when stopping, also. When I stop I can feel the warmth
> through the hub cap, and if I take that off, the grease cap is hot
> enough to burn and I can smell hot grease.
>
> I don't see how I could have messed up the bearing installation twice --
> it seems to have gone ok on the right side. Could it be front end
> alignment? Toe-in? Brakes?
>
> Chas Douglass -- Seattle WA
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