Rear brake job

[eieioh]

I just got through working on the rear brakes by replacing the shoes, having
the drums turned, and bleeding the system. While assembling the shoes, I
backed off the adjuster all the way. The pedal feels firm and has a normal
range of travel.

With the coach jacked up and turning the wheels by hand, there is some drag
at each wheel. After a test-drive of a mile or two, deliberately applying
the brakes from time to time, the hubs and wheels feel cool but the brake
drums are hot to the touch without searing the flesh. Is this condition
normal with a new brake job and how much drag is acceptable?

Bill Macdonald
77 Kingsley, Beaverton, Oregon
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(503) 526-8649
eieioh

 

[don andrews]

Bill Macdonald said:

>
- - -----------------------------------------
(503) 526-8649
eieioh

- ------------------------------------------
I have been watching the Net for a reply to your question, Bill. But,
apparently I missed it. After my brake job I had what I thought was
excessive heat in the rear wheels. I thought they dragged too much, just
like yours. So I "zeroed" the emergency brake thinking it was dragging.
But, it didn't seem to make much difference with the touch test. I
remember Heinz used an instrument last year to frequently check the wheel
temps, but I don't know how warm they are supposed to get. All I know is,
the front wheels are a lot cooler than the rears. Anybody have a comment?
Don Andrews
76 PB, Port Ludlow, WA
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[alan bredbury]

Tennatively, This is normal. Brake drums heat up quite
quickly when stopping a vehicle as the heat is where
the kinetic energy goes when stopping the vehicle. The
amount of drag when jacked up should not cause you to
strain while turning the wheel by hand and I would
expect the tire to turn at least a 1/4 rev after being
given a good start by hand. If it is tighter than this
you may have a problem.
Be aware that the brakes may need to be adjusted
quite soon after a job like this because. The old
drums are turned thereby making them slightly larger
in diameter than the original spec however the shoes
have the correct radius for the smaller diameter
(drums before turning) This means that at this time
you are probably only making contact on a small part
of the brake pad and they will wear in quickly. I
suggest you recheck the adjustment in a couple hundred
miles.

>Rear brake job
>I just got through working on the rear brakes by
>replacing the shoes, having the drums turned, and
>bleeding the system. While assembling the shoes, I
>backed off the adjuster all the way. The pedal feels
>firm and has a normal range of travel. With the coach
>jacked up and turning the wheels by hand, there is
>some
>drag at each wheel. After a test-drive of a mile or
>two, deliberately applying the brakes from time to
>time, the hubs and wheels feel cool but the brake
>drums are hot to the touch without searing the
>flesh. Is this condition normal with a new brake job
>and how much drag is acceptable? Bill Macdonald
>77 Kingsley, Beaverton, Oregon>>>
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