Author Topic: 5 trips to smith & still misfires (Read 942 times)

qweeksdraw · « **on:** September 27, 2003, 03:14:13 AM »

5 trips to smith & still misfires
Hi all, I have a rem. mod. 572 22. cal. pump that misfires randomly with all brands of ammo. It some times feels hard to chamber, and this is the round that misfires. Fivetimes and two different smiths have said that they fixed the problem. but it still misses. Anyone that can solve my problem will recieve a token of my appreciation.

3shots1hol2u

best qweeksdraw

jhm · « **Reply #1 on:** September 27, 2003, 03:39:21 AM »

Qweeksdraw : I certainly am NOT a smith, but have taken care of several guns over the years, and just from what you have stated I would law the problem to the bolt assembly and maybe a bad firing pin assembly when you say its hard to chamber it could be the extractor not letting the bullet come against the bolt face, which would hold it far enough forward that the firing pin isnt making contact with the chambered round, I would contact remington and let them know what it is doing and you may be able to send them just the bolt assembly which you can do without a FFL, good luck and keep us informed.

JIM

Dave in WV · « **Reply #2 on:** September 27, 2003, 04:08:58 AM »

I'd send the entire rifle to Remington and let them sort it out. The barrel/magazine assembly comes out of the reciever together and I wonder if there is a reciever problem since it's cast. I have a 572 and I'm familiar with them. They are a gem for squirrel hunting. Dave

gunnut69 · « **Reply #3 on:** September 27, 2003, 06:47:29 AM »

Let's find out the problem before we send it off the big green.. When the rifle DOES NOT fire, is the rim of the cartridge marked? If it is not marked or just very lightly marked combined with the difficulty in closing we need to see what's inhibiting the action from fully closing. The nearly closed action limits the hammer strike on the firing pin. This produces the light hits. Check the fire control mechanism around the disconnector for anything that might interfere with it's movement. Also check the firing pin and it's groove for burrs or battered ends. I've also noticed these actions to be a bit lightly built and therefore a bit suseptable to bent parts... Also what is the condition of a fired casing. Depth of the firing pin dent, marks, etc..

qweeksdraw · « **Reply #4 on:** September 28, 2003, 07:34:00 AM »

Thanks to all that have replied to this post, I did chat with Rem. and they want me to send it to their shop. I have already spent more money than the gun is worth in smith bills. I was hoping that someone had the same problem as I. Only hoping that it was something simple that was over looked. I shot it 45 times today missing firing the thirtyninth shot. They have replace all the parts that could cause the problem and some just to run up the bill I think.

The unfired round is not stuck hard enough to detonate. I think the hard chambering of the round is not letting the bolt close completely I think.

Please help me if you can, or I will be forced to send it to big green, I like that name it fits.

keep your power dry or die. Men used to live by this saying.

3shotz1hol4u qweeksdraw

gunnut69 · « **Reply #5 on:** September 30, 2003, 10:12:57 PM »

The hard closing of the bolt may be the key. Pumps don't have a lot of leverage and if the bolts not closed the disconnector may still partially block the force of the striker. I would check for a burred chamber first. That can cause a slightly large round to not want to chamber correctly and thus become a misfire. Check the firing pin, and it's race in the bolt. These use a long pin and a burr could be blocking the motion of the pin. Can you take the rifle down to check these parts? You might also check the round which failed to fire for marks around the case(indicating a burr or tight chamber). Also check the disconnector for burrs and it's spring for sufficient tension..

Swany · « **Reply #6 on:** November 03, 2003, 10:49:36 AM »

Lot of pump guns do shoot shorts, longs and cbs, well I for one would clean the chamber of that little pump before sending it out. If it is hard to chamber then you are not getting the round to the seat or (anvil so to speak) If the round is not fully chambered even a couple of thousanths then that rim is not against half of the firing mechanism. This can be some crud that just happens to get knocked loose and then is dislodged by the next round, not to be seen. But causing the round before to misfire. I do pick up a lot of .22 rds at my local range that are not fired when I put them in my old marlin lever they almost always go off. That old marlin, has a very stiff hammer spring, and I also always pay a little more attn to the chamber, with a .25 cal bore brush that I turn in the chamber after, it gets some bore solvent on it. That pump gun is a little more difficult though a cheap cleaning rod can be thought of as a extension for a cordless drill.

gunnut69 · « **Reply #7 on:** November 03, 2003, 07:29:22 PM »

I would caution against using a cheap aluminum rod in any rifle powered by a drill motor OR by hand. They will warp under stress and the soft aluminum is a perfect lap.. They can do a grerat deal of damage in an amazingly short amount of time. I prefer uncoated stainless rods. They are carefully checked for burrs and polished. They will not embed,will not act as a lap and have the strength to push a stubborn patch or spin a brush.. Check the chamber mouth just in front of the firing pin hole in the face of the bolt. There may be a burr in the chamber, developed by inadvertant dry firing, that's retarding the next rounds progress. Peen the burr back into place and the problem may disappear.