Want this question answered?
The Barrel has to be removed to replace it. Any good Gun Smith should be able to do it.
Try e-gunparts.com
Generally, ejection problems in the 39A are caused either by accumulated gunk, or by a weakened or broken ejector spring. Clean the gun, first. If that doesn't fix the ejection problem, then replace the ejector spring. It is easy to replace, as it's held in with a screw. The spring is Marlin part number 402095 and is available from www.brownells.com as their part number 550-402-095, priced at $2.73.
Best left to a gunsmith
The ejector located inside the left side of the receiver is drug reward by a leaf spring on the bolt on this rifle. The ejector has a shoe on the forward end which is part of the chamber and assists the extractor in removing the cartridge from the chamber. About halfway to the open position a coil spring located in a slot on the left side of the receiver under the thin metal cover overcomes the bolt spring pressure and pops the ejector loose and returns it to its forward home position. As the bolt continues rearward a lip on the back end of the ejector contacts the cartridge case rim and kicks it out when the bolt is fully rearward.
There is a hidden groove on the bottom of the ejector spring area. While initially it seems as though you should mount the spring with the half moon facing up to match the cutout in the gun you actually put the half moon piece down in the groove on the bottom which holds the spring in place and allows it to sit flush inside the gun save the ejector portion on the end.
Search on youtube for Winchester 1300 assembly, they are internally the same.
If you removed the bolt, you probably lost the ejector spring. A new one can be had from Numrich Gun Parts. To replace the ejector spring, remove the bolt, and take out the spring from the bottom of the receiver just behind the ejector port.
Try e-gunparts.com
If your rifle is not ejecting the casings, your ejector is not working. If you have a lever action, the ejector is the little spring loaded finger protruding from the inside of the receiver's back wall. There is a curved flat spring behind the finger that may be broken. On bolt actions or semi-autos the ejector is built into the bolt and also is spring loaded. Check for damage to the ejector itself or weak or damaged springs. when the caseings on my gun dont eject i just use a little oil on the bolt! works fine I concur, I have a Marlin Glenfiled Model 60 that would do this and finaly paid $8.75 for an ejector lifter spring from Numrich. The 32 year old gun works like new! Sounds like you may have a broken or damaged ejector, or worn out extractor, or both. ANSWER They also tend to be a little fussy if you get any oil in the chamber. Or if you use Remington Golden bulk ammo packs.
Put a drop of lubricant on it then use a spent casing to push the ejector in and out to get the lubricant to the spring.
Try e-gunparts.com