Back to the machine. Working on removing the arm assembly today. First thing was to get the stop motion cam bushing off. I have a three arm puller that made short work of it. It's always nice when you find a new use for tools you bought for a single purpose years ago. The photo here is of the puller attached to the bushing.
Next I loosened (with a hammer and a couple of dowels) the feed cam. I had removed the set screw yesterday and it had a good soaking of Blaster PB over night. Still, it split two dowels before breaking free. I ended up wedging a piece of wood between it and the arm rock shaft then tapping lightly on the end handwheel end of the arm shaft to get it completely loose.
Next came time for the arm shaft itself and today's lesson. Never blindly follow someone else's directions. They might leave out little things like... oh... set screws. For half an hour I tried tapping out the arm shaft. It would always get to the same point then completely seize up. I would tap it back and try again. I began rotating the arm thinking maybe the arch in it was binding somewhere along the machines neck. Same results. I looked back at the instructions. I accounted for all the pieces in the instructions. Finally I took the whole head back onto the porch and gave the bushing that sits behind the needle bar crank a good spritzing with the Blaster PB, thinking something was binding with it. I came back inside and pulled out some original Singer documentation to see what they say about the arm shaft. While looking at the Form 20004 Points of Wear sheet I saw a strange little smudge. Zooming in, sure enough, the Bushing has a set screw! D'oh! Apparently the writer of the instructions I followed was missing his, he called it an oil hole. After digging the smutz out of the hole I was greeted by the slot for the screw which came out remarkably easy, probably loosened from the thirty minutes of banging the bushing against it I had just finished.
With the set screw out, a few taps on the hand wheel end of the arm shaft popped the bushing out. Though the feed cam became snug on the hand wheel end as the arm shaft slid though. This one is a bit trickier. The arm shaft is loose now, so just whacking away at it won't do anything but jostle things around. But there's really no place for the puller arms to grip to slowly force it though. So it's back to tapping, just with lots of wood wedged around to hold things steady. And just let me sing the praises of Blaster PB once again here. A few spritzes, let set for an hour and the arm shaft more or less slipped through the feed cam with moderate taps from the hammer. The trick is, since the feed arm is free and sitting at angles to keep turning it between taps so I'm not wedging it the same angle constantly.
Once the arms shaft was pulled through the needle end of the machine I was easily able to remove the needle bar set screw. I highly recommend waiting until the shaft is out before attempting to take off the crank. I tried to do it through the screw-hole while it was still in the machine and could never get a good purchase with the screwdriver. I'll need to buff down some burrs I created in those attempts. With the screw out I used the puller again to pull the crank free. Then once more to get the bushing off. The bushing just needed to be turned with my fingers to get it over the ninety years of grunge build-up.
So here's the 66 all parted out. The only pieces still in the machine are the tap in spool pin on top and the upper arm rock centering guide inside. I haven't seen any information on removing the guide and since unlike later models this one doesn't have a screwdriver slot, I'm thinking it wasn't meant to come out once installed. I didn't include every little screw in the photo. Mostly because I didn't want to lose them all.
So tomorrow will be cleaning up the small bits. The probably a break for a while until I find a place to work on the with the toxic sludge stripping and painting will create. To be honest the machine came apart way faster than I thought it would when I first started looking at it.
For paint I was thinking about royal blue with red flames and "Singer Sewing Machines" done up like a Harley bar and shield. The wife and other interested parties rejected that idea. So it'll stay black.
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