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03-06-2017, 10:19 PM
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Pin doesn't move in cylinder/crane
Forgive me if I use the wrong terminology.
I have a cylinder/crane from an 1920s M&P. The pin in the very center does not move - at all. In one working correctly, you can move it and feel spring tension against it.
So, I am curious what to do about it. My first try is going to be to soak it in Kroil for a couple of days. If it is still stuck, does anyone have any suggestions?
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03-06-2017, 10:25 PM
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Looks like it's full of oxidation. My guess is the c.p. spring is frozen to the center pin, and the center pin is frozen inside the extractor rod. I would suggest a liberal amout (soaking) of a rust cutter like EEZOX....and time for it too work.
I would try disassembly after you soak it in your preferred penetrating oil.
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Last edited by armorer951; 03-06-2017 at 10:28 PM.
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03-06-2017, 11:16 PM
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That extractor rod is a right hand thread. To remove it after considerable soaking in solvent, apply torque counterclockwise. ....
It is always a good precaution to place three fired (empty) brass in three chambers to prevent the extractor star from jumping out of place and buggering things up. ......
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03-07-2017, 10:16 PM
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Here's another dumb follow up question. Should I take the mushroom knob off the end of the rod? Or leave it? If take it off, which direction do the threads go? Many thanks
By the way - after 24 hours in Kroil, the pin is moving when I push it and slowly returning with the spring.
Last edited by jmace57; 03-07-2017 at 10:28 PM.
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03-07-2017, 10:36 PM
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The knurled end of the rod cannot be removed.....it's part of the extractor rod.
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03-07-2017, 10:47 PM
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Quote:
Originally Posted by armorer951
The knurled end of the rod cannot be removed.....it's part of the extractor rod.
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Thanks for that!!! I'd have really messed it up!
Follow up: It is all apart now...soaking it in Kroil still. A lot of grunge was inside.
Last edited by jmace57; 03-07-2017 at 10:53 PM.
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