Maintenance suggestion.

[jdbubb at verizon.net (Dan Bubb)]

Nope. The vacuum distributor is just a rubber labyrinth pressed against a 
plastic part with small holes in it.
You disconnect it from the lever arm and remove the circlip. There's a 
spring inside so you need to hold it together while you remove the circlip.
In my experience they either don't work cause the lever doesn't move it far 
enough at the ends of travel, the little holes are plugged with 20 year old 
grease, or the vacuum hoses are connected to the wrong port. The connection 
scheme shown in ETKA is definitely wrong and I'm not sure about the one in 
the Bentley either.
A well lubricated one that moves freely is a joy! ;^)
Dan

From: "Mad Matt" <mr_bubblehead74@yahoo.com>
Sent: Tuesday, July 18, 2006 4:37 PM
Subject: Re: Maintenance suggestion.


> Are there any O-rings or seals that can be replaced
> while the distributor is open?  I have definitely seen
> a couple of those that didn't distribute vacuum
> properly.
>
> --- Dan Bubb <jdbubb@verizon.net> wrote:
>
>> This weekend I discovered that my recirculation flap
>> wasn't getting vacuum while I was attempting to get
>> the AC working on one of my cars.
>> Turns out the vacuum distributor was gummed up and
>> didn't want to turn easily, so it wasn't moving all
>> the way to the ends of it's travel for either
>> recirculation or defrost.
>> Taking it apart, cleaning it and relubing it
>> restored free movement. A pretty easy job once you
>> get the upper center console out. While I was in
>> there I also noticed that the heat control lever
>> didn't move freely and forcing it was really
>> stressing the plastic pivot of the control unit.
>> The reason I mention this, aside from functionality,
>> is that these parts break pretty easily and the
>> vacuum distributor is over $100 and the whole
>> heater/AC control is over $400!!!! I've seen a lot
>> of broken ones!
>>
>> Anyway, just a maintenance suggestion. If your
>> levers don't move freely fix them before you break
>> them. The replacements are expensive and were only
>> used on A1 chassis, so availability is going to be
>> limited.
>> Dan
>>
>>
>>
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>
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