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Old January 16th 05, 02:08 AM
SteveBrady
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Mike, I hope you have this newsgroup on a 7second delay so you can catch my
cussing!

that's the 2nd time they've tried to bend me over....They are better than
the dealership though....so other choices go for ma/pa shops I guess.

"Mike Romain" > wrote in message
...
> Wow, how dumb do they think folks are..... Even the old CJ's have
> automatic adjusters!
>
> The star wheel has a bar resting on it. There is a cable running from
> this bar, around the shoe pivot and hooks on the top center lug.
>
> The shoes do not fit snug up top, they can shift about 1/2" back to
> front.
>
> So when you hit the brakes going forward, it sets the brakes in their
> 'normal' position. Then when you hit the brakes in reverse, the shoes
> move that 1/2" in rotation and pull on the cable and cocks the little
> arm up against the star wheel. Then when you hit the brakes in forward
> again, it fires it and adjusts it one notch. The notches are rounded,
> so when the shoes are tight, the arm just slips over the star wheel.
>
> I put antiseize on my components, especially the star wheel threads and
> my adjusters always work right until the shoes are worn out.
>
> My local auto stores sell all the components if you are missing any.
> They have spring kits, adjusters, cables, etc.
>
> Bill has a link to a photo of the guts I believe.
>
> Mike
>
> SteveBrady wrote:
>>
>> I just had the jeep in for regular maintenance and the guy told me I
>> needed
>> my rear brakes to be adjusted.
>> And I brought up the 'automatic adjustment' thing and he said that's an
>> old
>> wives tale brought in, probably, from some import car design that didn't
>> catch on.
>>
>> I've had the rears apart (different vehicle) and do see the adjusting
>> 'star'
>> but don't see how it would auto adjust with the whole brake on reverse
>> thing. Was he feeding me a line to get more business out of me?
>>
>> "Mike Romain" > wrote in message
>> ...
>> > You are describing back brake shoes out of adjustment. They usually
>> > need to be hand set up before the automatic adjusters start working.
>> > The automatic adjusters adjust when you hit the brakes in reverse after
>> > hitting them in the forward direction to cock it.
>> >
>> > This also usually means the emergency brake will be at the end or
>> > almost
>> > all the way out.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
>> >
>> > wrote:
>> >>
>> >> I have a 94 Grand Cherokee and I think it has a problem with the
>> >> master cylinder. I changed the brake shoes on the rear this weekend
>> >> and
>> >> the front was done last year but I have excessive brake pedal when I
>> >> apply the brakes. They do not drift down when I apply them, but they
>> >> travel further down than I would like and if I let go and press again
>> >> I
>> >> have full pressure on the brakes like normal. Someone said either I
>> >> need to bleed the brakes or the master cylinder is at fault. If it is
>> >> the master cylinder, I can replace it but since it has ABS brakes I
>> >> was
>> >> told I cannot bleed the brakes without the DRB II scanner mentioned in
>> >> my manual. The manual says to bleed as normal, then use the DRB II
>> >> scanner tool, then bleed again as normal. Is there a way I can bleed
>> >> the brakes without this tool, someone said I could just start the car
>> >> and let it idle so the ABS can cycle on and then bleed as normal, can
>> >> this be done?
>> >> Thanks,
>> >> Mike Francis



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