Brake line questions

[Bernie Benz]

Phil, A little more problem isolation detail. If, with the cable  
removed, the caliper hand brake lever will return to its stop, the  
problem is likely the cable or sludged up caliper hydraulics.. The  
caliper only needs desludging, not HB mechanism overhaul. But a  
little oil on the external shaft / seal interface won’t hurt anything.

Bernie

On Jun 28, 2011, at 1:10 PM, Phil Rose wrote:

> One of the rare times I agree with Bernie (when he chants his DFWAB  
> mantra).
>
> If your "sticky" caliper symptom is that the rear brakes are  
> wearing the pads unevenly and/or won't run free when you release  
> the hand brake...then the first place I'd consider "fixing" (i.e.,   
> replacing) is the hand brake cables--especially if they're original  
> or more than 5 or 6 years old. But if you can determine that the  
> cables are good and are not the source of the "sticking", then you  
> do have an internal caliper problem which requires caliper  
> disassembly and overhaul.
>
> I've done it and it's a bear of a job just to manipulate the  
> internal parts and re-assemble correctly (and if you can get the  
> needed parts--including a new "oil" seal for the shaft of the  
> handbrake lever). [hint: NAPA p/n 6405 (16x24x7) from Chicago  
> Rawhide]. Corrosion of the HB lever shaft is generally at the root  
> of sticking rear calipers. So a good cleaning up with fine emory  
> cloth will probably be needed.
>
> Of course Bernie might scratch his head and respond "Corrosion?  
> Never heard of that. How does that happen?"
>
> My usual response is, "Easy. Just live somewhere other than  
> Nevada." ;-)
>
> Phil
>
> P.S. If you don't enjoy doing this kind of thing  and/or have  
> something better to do with the time (perhaps a few hours per  
> caliper to rebuild); you might consider buying rebuilt calipers. Of  
> course that's somewhat of a crapshoot, too, depending on source.
>
>
>
>
> At 7:29 AM -0700 6/28/11, Bernie Benz wrote:
>> DFWAB! (Don't Fix What Ain't Broke!). Start by overhauling, 
>> ( disassembling and cleaning)  all 4 calipers and flushing the  
>> system.
>>
>> Bernie
>>
>>
>> On Jun 28, 2011, at 7:08 AM, SAJanesick - Bellsouth wrote:
>>
>>> I've got a sticky rear brake caliper and thought I'd start with  
>>> replacing all the original brake lines and flushing the system.
>>>
>>> Anyone know if the rear brake lines are absolutely unique to the  
>>> 200q20v or are they the same as on a standard 200 sedan?  Also  
>>> the previous owner had the "upgrade" to the non UFO brakes (I've  
>>> been told they are the G60?).  Would the front brake lines be  
>>> unique to that change also?
>>>
>>> I have not yet started disassembling yet.  I just though I'd  
>>> check with the body of knowledge before digging the hole.
>>>
>>> Thanks,
>>>
>>>             Steve Janesick
>>>             sajanesick at bellsouth.net
>>>
>>> P.S. As always any other suggestions or information on the  
>>> subject would be appreciated.
>>>
>>>
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>
> -- 
>
> Phil Rose.....Rochester, NY USA
> '06 A3q 3.2 V6 (20K, silver)
> '91 200q	(165K, Lago blue)
> Gone to Audi Valhalla:
> '91 200q   (Tornado red)
> '89 100 (Bamboo gold)