[Boatanchors] frozen potentiometer

Jim Simmons orion at datasync.com
Tue Sep 26 13:21:42 EDT 2017

FWIW. One of the best penetrating oils is a 50/50 mixture of Automatic 
Transmission Fluid (ATF) and Acetone. This stuff is better than 
commericial penetrating oil - and it's a lot less expensive. I'd apply 
just a small drop on the knob end of that center shaft then let it set 
and do it's work. Like Jim Pruitt said the Acetone will carry the AFF 
into the frozen parts and evaporate, leaving the lubricating ATF.

Jim Simmons

On 9/26/2017 12:31 AM, Jim Pruitt wrote:
> I used a mixture of Marvel Mystery Oil and Acetone (about 60%-40% as I 
> recall) plus some heat.  The acetone wicks into the shaft and takes 
> the oil with it.  That softens caked on grease and oil.
> Good luck.
> Jim Pruitt
> On 9/25/2017 9:50 PM, Steve Mulder wrote:
>> I got it moving using rubbing alcohol on a Q-tip and a little bit of 
>> heat from a light bulb.
>> Thanks again for all the help!
>> Steve
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