[GreenKeys] is this stuff any good?yes, no ? Kano's -, Kroil unruster

[Roy Morgan]

On Jun 5, 2015, at 5:32 PM, Ed Sharpe Archivist for SMECC via GreenKeys <greenkeys at mailman.qth.net> wrote:

> IS POWER STEERING FLUID  GOOD  FOR TTY LUBE?

Absolutely not.  Power steering fluid is meant for completely different service.

There have been reports of a penetrating fluid home made recipe with 50-50 Automatic Transmission Fluid and Acetone.  I tried that once and the acetone and ATF did NOT mix or dissolve in each other.  It’s quite possible that the original tests were done with an earlier type of ATF than what I had.  Prior to that I had never run in to any liquid that acetone would not dissolve in.

The original report appeared in the magazine Machinists Workshop (details below, from the antique tractor list, the members of which deal with really rusty stuff). The reported results show the ATF and Acetone mixture to be significantly better than any other product tested.  Mine did not work.

By the way I did that test in an attempt to get the knob set screws loose on an RBB receiver.  They are still stuck. I’ll try Kroil next.

By the way #2:  The toughest thing I had to unstick in a Model 15 teletype was an actuator bar at the bottom of the mechanism that was involved in the shift-unshift action.  The bar had a sleeve on one end that pivoted on a shaft about 5/8 inch long.  No attempts with oil or penetrating fluid (likely liquid wrench) freed the thing up.  I had to hammer a jack knife blade between the end of the sleeve and the shoulder of the shaft to get it to move. Once freed up and lubricated, it ran like new.  NOTE: The fellow who sold me that machine had said “OH, I kept it running nicely with WD-40”!  When he said that, I *nearly* refused to buy the thing.

Roy




Antique Tractor mailing list post:.  
Note that the reported results are in units of force, not torque, but we should forgive them for that.

	From: 	gdotsly at watchtv.net
	Subject: 	[AT] Penetrating Oil Test
	Date: 	April 12, 2010 9:33:40 AM EDT
	To: 	at at lists.antique-tractor.com
	Reply-To: 	at at lists.antique-tractor.com

   Friend of mine sent this interesting test result.  Gonna have to  
try it. Could have used it this morning.

                       Gene

Machinist's Workshop magazine actually tested penetrants for break
out torque on rusted nuts. Significant results! They arranged a
subjective test of all the popular penetrants with the control being  
the torque required to remove the nut from a "scientifically rusted" environment.

Penetrating oil ..... Average load

None ............ ......... 516 pounds

WD-40 ............ ...... 238 pounds

PB Blaster ............ ..214 pounds

Liquid Wrench ...... 127 pounds

Kano Kroil ............ 106 pounds

ATF-Acetone mix... 53 pounds

The ATF-Acetone mix was a "home brew" mix of 50 - 50 automatic
transmission fluid and acetone.

Note the "home brew" was better than any commercial product in this
one particular test. A local machinist group mixed up a batch and all
now use it with equally good results. Note also that "Liquid Wrench" is about as good as "Kroil" for about 20% of the price.

Roy Morgan
k1lky68 at gmail.com
K1LKY Since 1958