Posted: 8/7/2011 1:52:56 PM EDT
| Just picked it up the other day brand new. Pulled it out of the box and it wont fire and will not disassemble. Im not very familiar with this platform... Im assuming it is something with the magazine disconnect. Any quick solutions to this or am I driving back to the shop? |
| Yup. Bolt cycles... It does get hung up a little while fully racked back. Almost need to give it a little nudge to send it forward. The bolt release is also extremely stiff. Don't know if that means anything other than I need to shoot some rounds through it and break it in. The shops closed until tuesday... It is the first gun Iv got from them even tho they do have a pretty good reputation around here for what its worth. |
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Quoted:
Yup. Bolt cycles... It does get hung up a little while fully racked back. Almost need to give it a little nudge to send it forward. The bolt release is also extremely stiff. Don't know if that means anything other than I need to shoot some rounds through it and break it in. The shops closed until tuesday... It is the first gun Iv got from them even tho they do have a pretty good reputation around here for what its worth. Is the bolt release only stiff with an empty magazine inserted? That is common. When you say the bolt gets hung up... does it actually bind up and seem to stick or is it simply the pressure of the bolt pushing the hammer down? I also take it the trigger will not release the hammer even when the mag is inserted and the safety is off? Well, just to play the goon for a second is the safety off (down)? Is the goofy safety lock engaged? |
| The gun is brand new and excessively lubed (main reason I want to disassemble it). I have tried different mags and yes the safety is in the boom position (with mag inserted). The bolt is not getting hung up bad just a slight bit, doesn't feel like it is binding. When i say it wont fire i mean the there is no primer strike, the firing pin is not engaging, the trigger feels like a sponge. |
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How far into the removal of the mainspring assembly does it "not go any further"? Is the lever not pulling up? Is the assembly not swinging out? Or is the locking lug refusing to budge?
The first few times you disassemble a Ruger Mark the mainspring locking lug will be tight as hell and most likely require a few taps from a mallet with a dowel to get it out. Same goes for getting the upper loose from the lower, mallet tap. The parts eventually loosen up and become removable by hand but the first few times require some "convincing". At this point I have no clue what is wrong with it. Something could be messed up in the trigger action, but until you can get it stripped there is no way to really know. |
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I can pull the mainspring out about 30 degrees from the frame. I was wondering if I needed to get a little more aggressive with it. Might give it a few love taps but before i do does it matter that the hammer is cocked (since it cant be fired).
Thanks for all the help guys. |
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The mainspring assembly should rotate about 90 degrees out and butt up against the rear of the lower receiver before you pull it out. If it is only moving to 30 degrees then that is most likely due to the hammer being in the wrong position. You may be right that something is not working with the magazine disconnect safety which is preventing the hammer from falling.
Might you have a dowel rod or metal punch that you could push up into the magwell and try to trip the magazine safety bar to get the trigger to drop the hammer? The magazine safety is just a little lever that the right side of the mag body presses up against to close the little switch on the action. Once you get this thing apart I recommend ditching the magazine safety. It's a simple swap for a MkII bushing. |
| That was the first thing i tried when i figured it was the mag safety, it wont trip when i push against it, it feels like it has spring tension against it. At this point im giving up on it before i send it flying across the room. Gonna have my buddy check it out tomorrow he has about 15 years of gun smithing for the army on me so I hope he has some tricks. Ill post when we figure it out and you can believe that mag safety will be gone at the first opportunity. Thanks again for the help. |
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I have seen one in the exact condition you are describing and it happens when the reassembly steps are not followed properly.
Keep the mag in, charge it, pull the trigger back, point it barrel down, and tap it a few times down onto a piece of wood or rubber. You should be able to disassemble it after that. |