[TMC] [Boatanchors] a stuck Jennings Vacuum Variable.

[Mark Foltarz]

Harold,

   I have used PL Blaster since they first started selling it in Cleveland quite a few years ago.
   Its almost magic what that stuff can do.
  And no, not safe for anything except metal or glass - strong stuff.

  I think I will try warming up the glass in water first.  

I am convinced that something is holding the bellows back, although I can ever so slightly twist the bronze collar.
And when I do move the collar I see the bellow inside also flex.
I wish I had an old one to take apart 



de KA4JVY

Mark




>________________________________
> From: Harold Hairston <k4hca at windstream.net>
>To: jfor at quikus.com; Mark Foltarz <Foltarz at rocketmail.com> 
>Cc: boatanchors at mailman.qth.net; amradio at mailman.qth.net; tmc at mailman.qth.net 
>Sent: Thursday, January 5, 2012 5:00 PM
>Subject: Re: [Boatanchors] a stuck Jennings Vacuum Variable.
> 
>All;
>
>There is a fairly new product on the market named PB Blaster. It is a super 
>penetrant. Better than WD 40 or Liquid Wrench.. It is available in most Auto 
>Parts stores. Be sure to get the "PENETRATING' formula. You will find many 
>uses for it.
>
>CAUTION; I HAVE NOT VERIFIED IF IT IS SAFE FOR PAINTED SURFACES.
>
>Harold
>
>
>----- Original Message ----- 
>From: "J. Forster" <jfor at quikus.com>
>To: "Mark Foltarz" <Foltarz at rocketmail.com>
>Cc: <boatanchors at mailman.qth.net>; <amradio at mailman.qth.net>; 
><tmc at mailman.qth.net>
>Sent: Thursday, January 05, 2012 12:51 PM
>Subject: Re: [Boatanchors] a stuck Jennings Vacuum Variable.
>
>
>I don't but perhaps some light penetrating oil into the thread mechanism?
>Was it screwed into the stop hard?
>
>-John
>
>============
>
>> Group,
>>
>> Has anyone ever run across a vacuum variable that is stuck with the
>> bellows fully expanded ?
>> I have one where the bellows are stuck open.
>> No electrical short.
>> It is a Jennings UCF 500 series glass vacuum variable.
>> Hoping someone has has experience with this problem.
>>
>>
>>
>> tnx
>>
>> de KA4JVY
>>
>> Mark
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