[Boatanchors] [Milsurplus] Rusted parts help?

[Glenn Little]

A solution called EvapORust.
This works at the ionic level and will only attack the rust.
This can be had at most auto parts stores, Tractor Supply and Harbor Freight.
I have used this and am very pleased.

73
Glenn
WB4UIV



At 02:21 PM 6/6/2014, hwhall at compuserve.com wrote:
>One of the WWII restoration projects at the museum is a bunch of 
>large impulse driven (slave) clocks we wish to return to operation 
>(I've gotten a couple running so far) . The problem we have that I 
>hope you all can help solve is that many of the concentric shafts 
>for the minute hand and hour hand are seized (i.e., solid minute 
>hand shaft inside tubular hour shaft). The shafts are concentric for 
>about two inches length, with about 3/8 inch overall outside dia. 
>The two shafts were a very close fit originally and are now pretty 
>solidly stuck.
>
>I've tried Liquid Wrench but it doesn't seem to be able to 
>penetrate. I've tried placing the assembly in my zero-deg freezer 
>for a couple days & then hitting the outer hour shaft with a propane 
>flame for several seconds, then tapping on the inner shaft. So far, 
>nothing gives. I can't hammer very hard, the rest of the assembly 
>won't take the abuse.
>
>Is there something that penetrates better than Liquid Wrench? If no, 
>then I think my next attack will require packing one end of the 
>inner shaft in dry ice with the flame applied to the outer shaft, in 
>the hope that the reason it failed before was the inner took heat 
>from the outer too quickly.
>
>Any other ideas??
>
>Thanks!
>
>Wayne
>WB4OGM
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