Hello Chris.
I do have a couple of penetrating oils on hand but have chosen the 3 in 1 because it is milder than the others. The paint work on the PA TUNE Dial is in good shape, though the rim needs some TLC to clear surface rust. I just don’t know how well the paints will hold up to anything too strong in the way of petroleum based products, for extended periods of time.
My game plan is to try and avoid powering the knob free at once. I hope to load the puller with just enough tension to apply strain to the sticky bit between the knob and dial and then let it sit a while under load. Hopefully as the crud softens a bit, the knob will move up the shaft and the puller will fall free. I will have padding on the front panel of the Sender in anticipation of this. The concept worked for me years ago on a larger scale when I had to free a stuck timing gear on the front of an old CMP Chev 216 engine. Took a few days but eventually found the puller on the shop floor one morning and the offending gear finally in a removable mood.
Those are the cards I hope to play, but I have yet to see what’s in the crud’s hand.
David
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