Ruger Mark 2 trigger

sixtots · Post by **sixtots** » Tue Apr 19, 2011 2:43 pm

Just shot my used ruger mark2 for 1st tim fired 5 mags of ammo. the 7th round of each mag wouldn't cycle,and jammed outside of chamber,distorting round. took gun home and disassembled,to clean. while reassembling, managed to insert main spring housing after watching several you tube videos. i have another problem. now when i cycle the action the pistol fires as the bolt slides home,fortunately the gun is empty. what did i screw up? apperently i managed to break the cross pin as mentioned at ruger firearms you tube video on mark 3 assembly. im stuck. igoogled this forum to try and find a solution. any help would be appreciatied.

bearandoldman · Post by **bearandoldman** » Tue Apr 19, 2011 3:04 pm

sixtots wrote:Just shot my used ruger mark2 for 1st tim fired 5 mags of ammo. the 7th round of each mag wouldn't cycle,and jammed outside of chamber,distorting round. took gun home and disassembled,to clean. while reassembling, managed to insert main spring housing after watching several you tube videos. i have another problem. now when i cycle the action the pistol fires as the bolt slides home,fortunately the gun is empty. what did i screw up? apperently i managed to break the cross pin as mentioned at ruger firearms you tube video on mark 3 assembly. im stuck. igoogled this forum to try and find a solution. any help would be appreciatied.

Welcome to the forum, check out the stickies and Bullseye will be along to help, sooner or later,

Post by **Bullseye** » Wed Apr 20, 2011 10:16 am

Welcome to Guntalk-Online!

sixtots wrote:Just shot my used ruger mark2 for 1st time fired 5 mags of ammo. the 7th round of each mag wouldn't cycle,and jammed outside of chamber,distorting round. took gun home and disassembled,to clean. while reassembling, managed to insert main spring housing after watching several you tube videos. i have another problem. now when i cycle the action the pistol fires as the bolt slides home,fortunately the gun is empty. what did i screw up? apperently i managed to break the cross pin as mentioned at ruger firearms you tube video on mark 3 assembly. im stuck. igoogled this forum to try and find a solution. any help would be appreciatied.

I am not familiar with the video, which crosspin did you break?

It sounds as if the hammer is not catching on the sear face and following the bolt when it closes. You may have the sear spring incorrectly installed or perhaps bent out of shape. How far did you tear down the pistol to clean it? Here is a link to my procedures for detailed disassembly/reassembly. The photos are hotlinks and can be mouse clicked to enlarge. http://www.guntalk-online.com/detailstrip.htm The procedures are basically the same for the Mark II and the Mark III, you just don't have the extra parts for the magazine disconnect safety.

R,
Bullseye

sixtots · Post by **sixtots** » Thu Apr 21, 2011 1:39 am

in step 3 of detailed internal frame parts removal, the small crosspin about 1/2" below the safety is broken.

thank you for the help.

sixtots · Post by **sixtots** » Thu Apr 21, 2011 2:14 am

As far as disassembly the barrel is seperate from the frame, the frame and its subcomponets haven't been disassembled as you so clearly show in your excellent images. i looked at the disassembly images and compared to my gun,yet i never disassembled any frame subcomponets. when the hammer is down, does the pin for the hamer rest on the crosspin? the same pin I found broken,should this pin support the hammer?at this point i cant fire the trigger, or slide the bolt home over the inclined hammer. i hope im giving you enough info. the gun fired until i removed the barrel.

Post by **Bullseye** » Thu Apr 21, 2011 10:04 am

The crosspin is the key to your problem. The crosspin is there in the frame to keep the sear spring in place and properly tensioned. The fact that it is broken means the sear cannot return to catch the hammer and lock it in time and that is causing the following situation. The crosspin doesn't have anything to do with the hammer or the hammer strut. Sometimes the hammer strut catches on the crosspin if it falls off of the mainspring cap when the mainspring housing is closed. Typically what you will experience is the bolt cannot be retracted more than about a half of an inch if the strut slipped. Flipping the pistol upside down and tilting slightly rearward are key to getting the mainspring housing closed properly.

R,
Bullseye

Coach1 · Post by **Coach1** » Thu Apr 21, 2011 12:09 pm

Sixtots. You will know that the hammer strut is properly engaged in the mainspring housing if - when closing the housing you get a bit of spring tension resistance in the last 1/8" .. just before fully closed.

Bullseye's detailed instructions and pics are your best bet to get it right. Just take the time to match your gun parts and the pics details and think through the relative mechanics. Good luck.

HEADKNOCKER · Post by **HEADKNOCKER** » Fri Apr 22, 2011 7:40 am

Here's another great link that shows the MKII Inerds..
http://www.1bad69.com/ruger/internals.htm
I'd either order a new pin or make one from a drill bit & reinstall..
Good Luck!!

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