Hunters21w wrote:I also don't know how to take apart and inspect everything. It's probably in the manual though. Have any nice tutorial vids on disassembly?
I haven't yet made a disassembly video, though I'll probably end up doing one at some point, since I get so many requests for it (normally I don't bother making videos on topics that a lot of other people have already covered). The manual gives step-by-step instructions for basic disassembly. It's not terribly complicated.
For inspection, look everything over for signs of damage or abnormal wear. A certain amount of wear (light scratches, spots with the finish rubbed off, etc.) is to be expected on a used gun, but watch for excessive rust, deformation, or cracks.
When you take the trigger plate assembly out of the gun, look it over for signs of extreme wear, rust, or missing parts. Make sure the hammer and sear lock up securely, and that the connectors move with the slide release. Look over the striking face of the hammer; it will probably show some deformation, but should still be more-or-less flat, and the same width as the rest of the part. Press down on the cocked hammer and the carrier dog, work the slide release and safety button, and flip the carrier up and down. If any of these feel especially soft and loose, or don't actuate crisply or spring back smartly when released, it could indicate worn-out springs that need to be replaced.
In the breech bolt, check the extractor spring and firing pin retractor spring the same way, and inspect the firing pin, extractor, and locking block for excessive wear or restricted movement.
Check the barrel for bends or bulges, and use a flashlight to inspect the bore for rust or pitting (clean it first). Make sure the barrel extension fits properly into the receiver without gaps or alignment issues, and make sure the locking notch inside the top of the barrel extension is free of debris and in good condition. Check the barrel guide ring to make sure the magazine cap detent is still installed.
Check the shell latches to make sure they actuate properly, and aren't worn-down or loose. Make sure the magazine spring has enough tension, and that the follower moves freely through the magazine tube and extension. Look for cracking or fatigue in the ejector and ejector spring. Look for dents, burrs, and stripped threads on the magazine tube, extension tube, and coupling nut.
Inspect the fore-end and stock wood for large cracks, splits, swelling, or looseness. Make sure the fore-end tube nut is tightened down, and the action bars on the fore-end tube assembly are straight, aligned, and intact (don't worry about finish wear on the action bars, that's usually the first place it rubs off).
If you're not sure what parts I'm talking about, refer to the owner's manual, they're all listed and illustrated there.
It also occurs to me that that this gun may be old enough to have the early-style action, without the flex-tab updates Remington implemented in the 1980s that prevent certain types of jams.
Here's a video with some details.