Need help troubleshooting a Cooey 600 action.

MuthaFunk

MuthaFunk

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I got this old Cooey from my dad. He shot it when he was young and it was the first gun I shot. I have sentimental attachment to it but to my dad it was just a toy and he didn't take care of it. I have taken on myself to rebuild it and now it looks and shoots great but there one problem, the action is messed up.

I can't figure out what I did wrong with it. It ran perfect for 50 years without a single cleaning!! LOL! I take it all apart, clean it up, reassemble and now every 15 to 20 shots when cycling the bolt it comes right out the back. At first I started looking at the magazine tube and how it may be dropping out from the bolt. I installed a spring around the takedown screw to keep it pushed against the receiver. At first I thought that fixed it but now it's started to happen again...

Has anyone encountered this issue with these? I'd love to get it back up and reliable again. I bedded it in the stock so it's firmly seated and it shoots nice groups when it's running.

Any help or thoughts would be greatly appreciated
 
I'm sitting in the dark w/no power but the I pad works . So I'm guessing and have a bad memory but didn't a guy have to loosen the action to get the bolt out of those ? I wonder when you bedded it you changed the spacing of the action to stock
 
Keithjohn said:
I'm sitting in the dark w/no power but the I pad works . So I'm guessing and have a bad memory but didn't a guy have to loosen the action to get the bolt out of those ? I wonder when you bedded it you changed the spacing of the action to stock
Click to expand...

Yes, you are right. Some disassembly is definitely required to remove the bolt from the 60/600 action.
 
Towards the back of the magazine tube (when the rifle is off of the stock) there is a threaded bolt without a head and a lock nut on a piece of u-channel, this adjusts the allowed play between the magazine link to the bolt. Unscrew the locknut a bit, line up the link with the notch in the bolt, and screw the bolt back in. Leave a little room between bolt and tube mag so that the tube magazine can still move freely, as it moves with the bolt while cycling the action. After you have it in the position that will work, tighten the locknut with appropiate wrench, don't torque the hell out of it, just snug will do.

If that doesn't fix it, or you already tried that, you may be looking at worn out linkage or the groove in the bolt could be becoming rounded.

I'll try to find some pics for reference
 
At the present moment my Cooey is completely stripped for Cerakote (If anybody is looking to have some Cerakote done in the Moncton area cheap as I am looking for some more rifles to practice on.) so I could provide the pictures of the parts involved.
 
Thanks for the help guys. I think I may have an alignment issue. It's possible I bent the magazine slide stop which controls where the bolt would halt during cycling. I'm going to try to bend it closer to the action to hold the bolt tighter.
 
These can be finicky, and 99pct of the time it's the tension on the takedown stud..that stud also controls tension on the moving magazine tube. I have best luck leaving a little daylight (business card) showing through where carrier meets bolt. 60's have 2 nuts there, 600 seem to have one. Too tight, and it'll jammy jam, and too loose it will too. It needs some free play to function as slick as ever, and not bind the magazine tube.
 
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here are some of the photos as promised.
IMG_0328_zpspknyoyz6.jpg
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IMG_0324_zpsgfsxmwe9.jpg
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that's a cooey 60 dissembled and Cerakoted

the parts you are looking at are these parts
IMG_0325_zpsn3ngvn6b.jpg
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