double deuce Posted February 27 Posted February 27 Hello everyone, getting ready for my first match in a long time, went to the range and my marlin was jamming, it’s a JM gun that I have had for a while but haven’t shot it a lot, brought it back to clean and inspect that’s when I noticed the wear on the side of the carrier, is this normal and if not what would cause this? Thanks Quote
Widder, SASS #59054 Posted February 27 Posted February 27 (edited) 24 minutes ago, The Original Lumpy Gritz said: What type of 'jam'? This ^ is a good question. As for that 'wear', more than likely its from 'fitting' the carrier in the rifle in order for it to pivot up and down. Someone has grinned (or sanded) that 'saddle' area and didn't reblue it. A conscientious gunsmith would normally give a slight polishing to that area but my guess is that a factory worker under time restraints did it. And as Lumpy inquired................ what type of jam is it? Is the round jamming coming onto the carrier or does it jam going into the chamber. Does it jam on the 1st round or the last round, etc......... And as Lumpy's #1 excellent advice..... 'are all your screws tight'? EDIT: can you give us a picture of the other side and the bottom of the carrier. We would like to see the ramp condition. ..........Widder Edited February 27 by Widder, SASS #59054 1 Quote
double deuce Posted February 27 Author Posted February 27 It was letting a round advance from the magazine and was keeping the carrier from going up, I could press the round back in the magazine and it would free the jam, that’s the only pic I have I just finished re assembling the rifle 2 Quote
Widder, SASS #59054 Posted February 27 Posted February 27 (edited) DD: from your description, your jam is often referred to as the "Marlin Jam"..... or the 'feed 2 jam'. It is caused by the rising time of the carrier in relationship to the OAL (Over All Length) of your ammo during the downward stroke of the lever. Basically, you have slow timing. CURE: The carrier ramp need to be heightened about .003 to .005. This can be done by a good TIG welder, or adding something hard like a jigsaw blade to the ramp, etc........... CAUTION: when welding on the carrier, don't allow the area of that little plunger to get too hot because it can ruin (destroy) the spring strength on that plunger piece. And with no spring strength to that plunger stud, the carrier won't rise during the upward stroke of the lever. Depending upon the severity of your timing, sometimes the cure is to shoot ammo that has a longer OAL than the ammo that is jamming. Example: if your rifle is a .38/.357 and your ammo is 1.450, it might help to use ammo that is 1.500 in OAL. NOTE: don't add too much height to the ramp because when the timing becomes too fast, the carrier will pinch the bullet as it exits the portal area and create a jam before the bullet can clear the portal to sit on the carrier correctly. Adding .003 to .005 is usually sufficient to correct your timing issues. ..........Widder Edited February 27 by Widder, SASS #59054 1 1 Quote
double deuce Posted February 27 Author Posted February 27 Thanks Widder, Do you have any pics showing the modification? I’m not certain I understand where I should add material, and is there other options to fix this other than a tig? I don’t have one, and quick search looks like replacement parts are non existent, i really appreciate your replies and sharing your knowledge. Thanks Quote
The Original Lumpy Gritz Posted February 27 Posted February 27 (edited) 2 hours ago, double deuce said: Thanks Widder, Do you have any pics showing the modification? I’m not certain I understand where I should add material, and is there other options to fix this other than a tig? I don’t have one, and quick search looks like replacement parts are non existent, i really appreciate your replies and sharing your knowledge. Thanks Where the 'cam' on the lever makes contact with the bottom of the carrier. You may even see a notch in it. https://www.marlinowners.com/threads/the-dreaded-marlin-jam-and-how-to-fix-it.568012/ Edited February 27 by The Original Lumpy Gritz 1 Quote
Widder, SASS #59054 Posted February 27 Posted February 27 What Lumpy posted above ^^^^^. ALSO, you can contact Gunner Gatlin about his fix..... AND, on this Wire, we have a good Wire Pard name Jackrabbit Joe who can weld and reshape those carrier ramps. I would trust either person using their particular methods. ..........Widder 2 1 Quote
Widder, SASS #59054 Posted February 27 Posted February 27 DD, I sent you a PM. ..........Widder Quote
Cheyenne Ranger, 48747L Posted February 27 Posted February 27 18 hours ago, double deuce said: It was letting a round advance from the magazine and was keeping the carrier from going up, I could press the round back in the magazine and it would free the jam, that’s the only pic I have I just finished re assembling the rifle Lord knows I'm no expert but the length of ammo also plays a factor in this. If the rounds are too short, the one ahead of the one on the carrier can come out of the mag tube and jam the works, too Quote
Widder, SASS #59054 Posted February 27 Posted February 27 2 hours ago, Cheyenne Ranger, 48747L said: Lord knows I'm no expert but the length of ammo also plays a factor in this. If the rounds are too short, the one ahead of the one on the carrier can come out of the mag tube and jam the works, too Indeed. I talked with DD this afternoon and gave him information on how to test his timing. I told him my guess was that he was using ammo that was probably 1.45 to 1.47 in length and he informed me his ammo was 1.46. (Lucky Guess) I instructed him to test some 1.50+ and call me back. I haven't heard from him yet. But, we talked of his situation, the causes and cures......... along with those who can help him, etc...... I hope to hear from him again. ..........Widder 3 1 Quote
double deuce Posted February 28 Author Posted February 28 Thanks everyone for the replies, Widder I really appreciate you taking the time to talk to me today, I loaded a few dummy rounds to 1.50 my feeding jams are still intermittent, I have taken the gun apart and took some more pics as well I added a layer of carbide on the bottom I thought it helped but I had another failure. Widder gave me some more options that I will pursue, thanks Quote
The Original Lumpy Gritz Posted February 28 Posted February 28 Add a .020 metal shim to the bright spot on tha carrier a see what it does. You can crazy glue it for test purposes. Quote
Widder, SASS #59054 Posted February 28 Posted February 28 (edited) I talked with DD again this evening after looking at the picture of his carrier. I advised him that the material he added actually needed to be lengthen to the bottom area of the carrier ramp and not just the middle section. So, he's gonna add a little more. He'll proceed with his fix-it procedure tomorrow and report back to us. EDIT: DD did say that the 1.50 ammo did help a little but he still got the occasional jam. He may try some a little longer tomorrow, but basically, he's gonna focus on adding some material to his ramp. ..........Widder Edited February 28 by Widder, SASS #59054 2 2 Quote
Eyesa Horg Posted February 28 Posted February 28 Just FYI, you can wiggle the carrier out thru the bolt slot instead of taking the whole action apart. Just did it dozens of times! Remove lever , bolt & ejector. Poke carrier from the bottom just forward of the he lock bolt. Turn 90° as you remove thru the bolt slot. After a few times it becomes easier and a lot less disassembly. Second note, do as Widder advised!! He's da man! 1 Quote
double deuce Posted March 1 Author Posted March 1 Hello everyone, I added a shim to the carrier and now the rifle function flawless so far, I need to figure out a permanent way of building the carrier up, I don’t have a Tig, but a few ideas, Eyesa, I agree Widder is da man, he was gracious enough to talk me through how the gun works as well as test to do to find the issues, thanks Widder and everyone that replied, below is a pic of the temporary shim I added, 5 Quote
Widder, SASS #59054 Posted March 1 Posted March 1 DD, You did a good job and I enjoyed talking with you on the phone. Keep us all informed of progress or future issues and the 'Wire Pards' will try to surf you thru cures and proper 'fix it' methods. Keep my number and feel free to call anytime. ..........Widder 3 1 Quote
The Original Lumpy Gritz Posted March 1 Posted March 1 45 minutes ago, double deuce said: Hello everyone, I added a shim to the carrier and now the rifle function flawless so far, I need to figure out a permanent way of building the carrier up, I don’t have a Tig, but a few ideas, Eyesa, I agree Widder is da man, he was gracious enough to talk me through how the gun works as well as test to do to find the issues, thanks Widder and everyone that replied, below is a pic of the temporary shim I added, See if you can find a jewelry repair shop that uses low temp silver solder. 1 2 Quote
Widder, SASS #59054 Posted March 1 Posted March 1 Hey Lumpy, DD is gonna try and drive down to Fort Widder sometime next week and we hope to set up his carrier and a couple other quickie fixes to help give him a better Marlin. Looks like he just lives a couple hours north of me. I'll enjoy the visit........ and I get a free BBQ sammich out of it. ..........Widder 2 1 Quote
El Sobrante Kid Posted March 1 Posted March 1 4 hours ago, double deuce said: Hello everyone, I added a shim to the carrier and now the rifle function flawless so far, I need to figure out a permanent way of building the carrier up, I don’t have a Tig, but a few ideas, Eyesa, I agree Widder is da man, he was gracious enough to talk me through how the gun works as well as test to do to find the issues, thanks Widder and everyone that replied, below is a pic of the temporary shim I added, It would be helpful to know how much "thickness" you added with the shim and adhesive. Thanks, and congrats. Quote
The Original Lumpy Gritz Posted March 1 Posted March 1 13 minutes ago, El Sobrante Kid said: It would be helpful to know how much "thickness" you added with the shim and adhesive. Thanks, and congrats. Start with .020 thickness. Steel only.... Quote
The Original Lumpy Gritz Posted March 1 Posted March 1 41 minutes ago, Widder, SASS #59054 said: Hey Lumpy, DD is gonna try and drive down to Fort Widder sometime next week and we hope to set up his carrier and a couple other quickie fixes to help give him a better Marlin. Looks like he just lives a couple hours north of me. I'll enjoy the visit........ and I get a free BBQ sammich out of it. ..........Widder He may well benefit from one of your extractors, since the ones we prototyped are no longer made. 1 Quote
Widder, SASS #59054 Posted March 1 Posted March 1 56 minutes ago, El Sobrante Kid said: It would be helpful to know how much "thickness" you added with the shim and adhesive. Thanks, and congrats. As Lumpy noted, it was probably more like .020 After talking with DD on the phone about his symptoms, I had advised .005 or such, but after some initial testing, the .005 was not enough and I think it ended up somewhat thicker. I don't know what adhesive DD used at this time, but his fix is 'temporary' right now. He's taken it to the range and shot it and is very happy with the results. ..........Widder 3 Quote
double deuce Posted March 1 Author Posted March 1 Hello everyone the sim is .020 thick hacksaw blade, I used impact gorilla glue for the adhesive, as Widder mentioned it is a temporary fix just to see if that was my issue, it worked flawlessly, about 150 rounds shooting as fast as I could work the lever no hiccups so far. Widder. I'm looking forward to my visit, I really appreciate you taking the time to help me out. 2 3 Quote
Jackrabbit Joe #414 Posted March 2 Posted March 2 double deuce 2 hours ago, double deuce said: Hello everyone the sim is .020 thick hacksaw blade, I used impact gorilla glue for the adhesive, as Widder mentioned it is a temporary fix just to see if that was my issue, it worked flawlessly, about 150 rounds shooting as fast as I could work the lever no hiccups so far. Widder. I'm looking forward to my visit, I really appreciate you taking the time to help me out. double deuce I have some marlin carrier's with the fix, Will send you apm. JRJ 1 Quote
Jackrabbit Joe #414 Posted March 2 Posted March 2 On 2/26/2025 at 5:51 PM, double deuce said: Hello everyone, getting ready for my first match in a long time, went to the range and my marlin was jamming, it’s a JM gun that I have had for a while but haven’t shot it a lot, brought it back to clean and inspect that’s when I noticed the wear on the side of the carrier, is this normal and if not what would cause this? Thanks Yo Ho double deuce sent you request for you email to communicate better. JRJ Quote
Howdy Pardner Posted March 2 Posted March 2 when you click on the website lumpy suggests, cursor down through the other posts. you may find a permanent fix there in the picture. howdypardner 1 Quote
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