[GreenKeys] Zoomspout oil

[Roy Morgan]

On Aug 7, 2012, at 12:53 PM, John Nagle wrote:
>   I use Valvoline synthetic motor oil, 5W-20 weight.
> ...
>   Just don't use WD-40.  That's for getting stuck bolts
> unstuck, not machinery lubrication.

John and others,

In case you DO need to get something unstuck, the Machinists Workshop  
magazine reported the results below, and noted that the 50-50 mix of  
automotive ATF and acetone did the best job of loosening rusted parts.

I have a Model 15 page printer that came from a fellow who told me, "I  
haven't run it for years, but I kept it running nicely with WD-40."    
Silently I thought "Oh s**t, this thing may never run again."  But  
there was only one thing stuck so solidly I had to take the piece and  
the pivot shaft out of the machine and wedge them apart with a pocket  
knife and hammer.  (It was part of the carriage return mechanism at  
the bottom of the machine.)

Here's the info from Machinists Workshop:

> Machinist's Workshop did a test of penetrating oils where they
> measured the force required in a standard test
> to loosen rusty test devices. The results reported were interesting.
>
> The lower the number of pounds the better. Mighty interesting
> results for acetone and automatic transmission
> fluid!
>
> Penetrating oil . Average load .. Price per fluid ounce
> None ............ ..... 516 pounds .
> WD-40 ............ .. 238 pounds .. $0.25
> PB Blaster ......... 214 pounds .. $0.35
> Liquid Wrench ... 127 pounds .. $0.21
> Kano Kroil ........ 106 pounds .. $0.75
> ATF-Acetone mix.. 53 pounds .. $0.10
>
> The ATF-Acetone mix was a 50/50 mix (1 to 1 ratio)


Roy Morgan
k1lky at earthlink.net
K1LKY Since 1958 - Keep 'em Glowing!