Massey850

I used krud kutter the must for rust. It did work very well. It is a spray on gel type. I let it sit for 30 min and washed it off. But yeah, major difference in what it looked like from the bush to now.
Today I also started unseizing the machine. I got the flywheel to turn but nothing else turns with it. Another mystery. Some of those small screws are also proving to be quite difficult to take off. I actually twisted the head on the screwdriver before it would turn.

OurWorkbench

I'm wondering if something like Kroil would help with the screws. Unfortunately, from my understanding, it has to be online ordered. I found mine at a garage sale, so I have some.


Janey - Neat people never make the exciting discoveries I do.

Massey850

I've never heard of kroil. I might have to give it a try. What I've been using is liquid wrench. It does a fairly good job but it has some strong fumes.
The screws that gave me the most grief were the 2 screws on the front cover and the two screws on the chromed part behind the bobbin winder. Those 4 screws were rusted in the threads and rusted to the covers so I couldn't turn them out. I thought of a genius idea that worked very well to get those parts off. Both the front cover and the side piece need to be replaced so on the front cover I cut out a square around the bottom screw with a die grinder. Then i bent the cover enough to clear the bottom square piece and the leverage was enough to turn the screw and then free the screw from the front cover. Then I took an adjustable wrench and turned on the square and the same thing happened. So I saved the screws and now I can make new covers. The side one didn't go quite so good so I'll have to do a bit more work to it.

OurWorkbench

I found kind of an interesting, albeit long, site about penetrating oils at https://backyardtoolshed.com/best-penetrating-oil/ Maybe PB Blaster Penetrating Oil would be easier and quicker to obtain. You want the Penetrating Oil, as there are now many different products with PB Blaster on the label. Just my opinion, I think Kroil would work better. I also would give it a little more time to work.

Another site about rusted screws, but not on sewing machines. http://lumberjocks.com/replies/on/4577314 However, I have seen some, even tried some of the suggestions.


Janey - Neat people never make the exciting discoveries I do.

Sewjourner

PB Blaster works well, it’s available at most auto parts stores, and Tractor Supply. Kroil is on Amazon.

Mickey2

I seriously don't thing anything works well enogh on your machine Massey; the various spray can stuff I have tried works much the same, minor differences and one thing can turn out to be just the right thing one time, and the next time another product seems to make the difference. Either way, in most cases it is patience, applications, and multiple reapplications that does the jobs. Some of these products contain different ingredients, and when those are identifiable we can switch product after a while. Called, lubricant, penetrant, bolt-off, water dispersant, they tend to be much the same stuff with just one or two differing ingredients.

Massey850

Kroil probably would work the best but its fairly expensive compared to other penetration oils I've used. I was using liquid wrench which does do a fairly good job. Another one I like is sea foam. I'd say those two work about the same. I think I'll give pb blaster a shot because its cheap and I can pick it up at my local Canadian Tire. I'll probably end up using the propane torch to get some of those screws loose along with a penetration oil. This seems to be almost a science experiment with the stuff I've tried but I haven't spent much so far.

Mickey2

Maybe apply a bit of Krud Kutter and let it work over night? I'm assuming you have some left. There stuff like CRC freeze-off that's given good reviews, but it can get expensive buying one bottle after the other just to try. Some products have MoS2 listed as active ingredient, others methyl salicylate. I should really make a list of clever ingredients to look for.

Massey850

I do have krud kutter left but its not good for penetration. When I did the first test, I made sure I sprayed a little extra on the screws. They didn't budge. I'm also fairly busy with school so I'm not doing as much work as I'd like to with this machine. Basically, I only do work with this machine on weekends. Also I'm not sure on how much more work I want to do with this machine for now. Basically for this year I'm probably gonna unseize the machine, clean up the non-painted parts and wait until spring next year to paint the machine. Usually it snows closer to halloween or even later where I live. This year we got snow on the last day of summer and the weather has been miserable since. Spray painting in the house isn't an option either so I'll have to wait.

Cari-in-Oly

Just remember that it didn't get in this condition over night and it's not gonna get all freed up over night. Patience is a good thing here.

Cari