'89 626 drums...again!

Took the rear wheels off and spent two hours looking for the release to
get the drums off. No Go.

I don't know if someone replaced the original backing plates, but there is
no hole. The parking brake release is on the outside on this model, and I
actuated the release AND loosened the parking brake with the adjuster at
the handle...

STILL can't get the damn drums off!!! Any more suggestions?

=?iso-2022-jp?q?Hachiroku_=1B$B%O%A%m%=2F=1B=28B?= <(E-Mail Removed)>
wrote in news:Zdnki.2696$nQ4.1770@trndny01:

> Took the rear wheels off and spent two hours looking for the release
> to get the drums off. No Go.
>
> I don't know if someone replaced the original backing plates, but
> there is no hole. The parking brake release is on the outside on this
> model, and I actuated the release AND loosened the parking brake with
> the adjuster at the handle...
>
> STILL can't get the damn drums off!!! Any more suggestions?
>
>
>


Do the drums wiggle even a little, or are they rock solid?



--
Tegger

On Mon, 09 Jul 2007 10:45:04 +0000, Tegger wrote:

> =?iso-2022-jp?q?Hachiroku_=1B$B%O%A%m%=2F=1B=28B?= <(E-Mail Removed)> wrote
> in news:Zdnki.2696$nQ4.1770@trndny01:
>
>> Took the rear wheels off and spent two hours looking for the release to
>> get the drums off. No Go.
>>
>> I don't know if someone replaced the original backing plates, but there
>> is no hole. The parking brake release is on the outside on this model,
>> and I actuated the release AND loosened the parking brake with the
>> adjuster at the handle...
>>
>> STILL can't get the damn drums off!!! Any more suggestions?
>>
>>
>>
>>
>
> Do the drums wiggle even a little, or are they rock solid?


They are on there pretty tight. I think I got one to move about 1mm, but
who can be sure at that amount?!

Hachiroku ãƒ�ãƒ�ãƒ*ク wrote:
> Took the rear wheels off and spent two hours looking for the release to
> get the drums off. No Go.
>
> I don't know if someone replaced the original backing plates, but there is
> no hole. The parking brake release is on the outside on this model, and I
> actuated the release AND loosened the parking brake with the adjuster at
> the handle...
>
> STILL can't get the damn drums off!!! Any more suggestions?
>
>
If the brake cylinders are bolted in from the outside of the backing
plate, remove the lines and mounting bolts. Push the cylinder into the
drum area trying to move the shoe contact points off the contact points
of the cylinder pistons. That my allow the shoes to fall into each other
just enough to remove the drum. If there are shoe spring holders that
lock into the backing plate you can remove them with a pair of sturdy
needle nose pliers by turning them by the little tip of the pin that
protrudes through the plate. If all else fails you can use a really big
slide hammer that will pound the drums off. That is not the preferred
method because it can damage brake components, but it does work.
Sometimes the shoes are so far worn into the drums that the adjuster
will not back off enough. Do all you can first before you resort to the
slide hammer.

=?iso-2022-jp?q?Hachiroku_=1B$B%O%A%m%=2F=1B=28B?= <(E-Mail Removed)>
wrote in news:GGoki.3360$lY4.3258@trndny07:

> On Mon, 09 Jul 2007 10:45:04 +0000, Tegger wrote:
>
>> =?iso-2022-jp?q?Hachiroku_=1B$B%O%A%m%=2F=1B=28B?= <(E-Mail Removed)>
>> wrote in news:Zdnki.2696$nQ4.1770@trndny01:
>>
>>> Took the rear wheels off and spent two hours looking for the release
>>> to get the drums off. No Go.
>>>
>>> I don't know if someone replaced the original backing plates, but
>>> there is no hole. The parking brake release is on the outside on
>>> this model, and I actuated the release AND loosened the parking
>>> brake with the adjuster at the handle...
>>>
>>> STILL can't get the damn drums off!!! Any more suggestions?
>>>
>>>
>>>
>>>
>>
>> Do the drums wiggle even a little, or are they rock solid?
>
>
> They are on there pretty tight. I think I got one to move about 1mm,
> but who can be sure at that amount?!
>
>



Do you have a shop manual for that car?

You may want to post your question to rec.autos.tech. There are a number of
professional techs there who are familiar with Mazda products.

--
Tegger

"Ph@Boy" <(E-Mail Removed)> wrote in
news:(E-Mail Removed) :

> Sometimes the shoes are so far worn into the drums that
> the adjuster will not back off enough.



I've seen that. When that happens, I grind off the back of the shoe hold-
down pins so I can lever the shoes/drums away from the backing plate. This
sometimes gives access to the adjuster, depending on where it's located in
the drum.


--
Tegger

Hachiroku ãƒ�ãƒ�ãƒ*ク wrote:
> Took the rear wheels off and spent two hours looking for the release to
> get the drums off. No Go.
>
> I don't know if someone replaced the original backing plates, but there is
> no hole. The parking brake release is on the outside on this model, and I
> actuated the release AND loosened the parking brake with the adjuster at
> the handle...
>
> STILL can't get the damn drums off!!! Any more suggestions?
>
>
I forgot to mention to make sure that the drum is not hung up or bound
on the center flange of the axle (where the axle fits through the center
of the drum). Sometimes you have to use penetrating oil and or a torch /
slide hammer to break it free. I don't know if your Mazda is constructed
like that Hachi , but if you can turn the drum and axle assembly by
hand, it might be the problem, or part of it. Just a thought.

"Ph@Boy" <(E-Mail Removed)> wrote in
news:cbGdnb-4DPg-(E-Mail Removed):

> Hachiroku ãƒ�ãƒ�ãƒ*ク wrote:
>> Took the rear wheels off and spent two hours looking for the release
>> to get the drums off. No Go.
>>
>> I don't know if someone replaced the original backing plates, but
>> there is no hole. The parking brake release is on the outside on this
>> model, and I actuated the release AND loosened the parking brake with
>> the adjuster at the handle...
>>
>> STILL can't get the damn drums off!!! Any more suggestions?
>>
>>
> I forgot to mention to make sure that the drum is not hung up or bound
> on the center flange of the axle (where the axle fits through the
> center of the drum). Sometimes you have to use penetrating oil and or
> a torch / slide hammer to break it free. I don't know if your Mazda is
> constructed like that Hachi , but if you can turn the drum and axle
> assembly by hand, it might be the problem, or part of it. Just a
> thought.



That's why I asked Hachi if he had a manual for the car.

The only Mazda I'm familiar with is my old '74 RX-4, which had manually
adjustable rear drum brakes (yes!). This vehicle had the sort of drums that
slip over the hub, not the kind that contain a bearing race.

If Hachi's Mazda uses the same kind of no-bearing drum, then it is probably
rusted on the hub and needs to be shocked loose. Comboverfish has already
suggested this approach in his post in rec.autos.tech.

I have found that penetrating oil does no good in these cases. Light and
numerous hammer blows judiciously applied are far more effective. Rust is
brittle and easily fractured.

--
Tegger

On Mon, 09 Jul 2007 23:33:31 +0000, Tegger wrote:

> "Ph@Boy" <(E-Mail Removed)> wrote in
> news:cbGdnb-4DPg-(E-Mail Removed):
>
>> Hachiroku ãƒÂ�ãƒÂ�ãƒÂ*ク wrote:
>>> Took the rear wheels off and spent two hours looking for the release to
>>> get the drums off. No Go.
>>>
>>> I don't know if someone replaced the original backing plates, but there
>>> is no hole. The parking brake release is on the outside on this model,
>>> and I actuated the release AND loosened the parking brake with the
>>> adjuster at the handle...
>>>
>>> STILL can't get the damn drums off!!! Any more suggestions?
>>>
>>>
>> I forgot to mention to make sure that the drum is not hung up or bound
>> on the center flange of the axle (where the axle fits through the center
>> of the drum). Sometimes you have to use penetrating oil and or a torch /
>> slide hammer to break it free. I don't know if your Mazda is constructed
>> like that Hachi , but if you can turn the drum and axle assembly by
>> hand, it might be the problem, or part of it. Just a thought.
>
>
>
> That's why I asked Hachi if he had a manual for the car.
>
> The only Mazda I'm familiar with is my old '74 RX-4, which had manually
> adjustable rear drum brakes (yes!). This vehicle had the sort of drums
> that slip over the hub, not the kind that contain a bearing race.
>
> If Hachi's Mazda uses the same kind of no-bearing drum, then it is
> probably rusted on the hub and needs to be shocked loose. Comboverfish has
> already suggested this approach in his post in rec.autos.tech.
>
> I have found that penetrating oil does no good in these cases. Light and
> numerous hammer blows judiciously applied are far more effective. Rust is
> brittle and easily fractured.


No, this car has a bearing inside the drum...

"Hachiroku ????" <(E-Mail Removed)> wrote in message
news:Zdnki.2696$nQ4.1770@trndny01...
> Took the rear wheels off and spent two hours looking for the release to
> get the drums off. No Go.
>
> I don't know if someone replaced the original backing plates, but there is
> no hole. The parking brake release is on the outside on this model, and I
> actuated the release AND loosened the parking brake with the adjuster at
> the handle...
>
> STILL can't get the damn drums off!!! Any more suggestions?
>
>

Hachi,

I just did a quick net search and from all indications (checked a site
called car parts team/not advocating them, just for reference), the rear
brake drums are not hubless. you need to remove the spindle nut and bearing
to get it off. In the worst case scenario, as some one else mentioned, you
should disconnect the brake line and mounting bolts for the wheel cylinder
and yank the hole drum off. It would work easier if you have a slide
hammer. If you do go that route, be sure you get a replacement brake
hardware kit since the retaining clips or pins will be destroyed. There's
probable a big lip on the outer edge of the drum, preventing easy removal.