MKII Trigger Resetting on Double Pull

Tbag · Post by **Tbag** » Tue Aug 28, 2007 10:40 pm

Well, I've smoothed the edges, opened up the plunger hole a smidge, rechecked the disconnect spring. The spring appears ok, wasn't corrosion just an off color.

The pistol is still needing to be reset most of the time.

I would have figured this work would have done the trick, not this time.

The only burr that I really found was a small nick on the side of the sear. The disconnect lever had maybe a little edge but it wasn't much to speak of and it buffed out. Starting to run out of ideas.

Post by **Bullseye** » Tue Aug 28, 2007 10:48 pm

How is the pivot pin in the top of the hammer - is it tight or binding? Remove the hammer and bushing then swing the disconnector lever upwards on the pin to see if it moves easily. If it is binding then that hole may need to be opened up a little, or the little step part of the hole. The disconnector pivot pin hole actually has two parts, the first goes all the way through and the second is just a step recess and goes in about 1/16". Either one of these could cause a problem.

R,
Bullseye

Tbag · Post by **Tbag** » Wed Aug 29, 2007 7:34 am

I would like to first say thankyou for working with me on this one.

I'm at work, but I don't recall any feel of binding when I swung up the D.L. to get to the plunger and spring. I was playing with DL when I had previously swung it up, it even has a little free play side to side (1/16th) albeit not much. Bulleye you did mean the pivot pin in the top of the trigger?

What is the life expectenancy of the of the D.L. plunger spring? This pistol is far from new with its fair share of rounds, more than 5000, less than 10,000.

Post by **Bullseye** » Wed Aug 29, 2007 7:00 pm

Yes, I meant the pivot pin on top of the trigger.

I've never seen a trigger plunger spring wear out, no matter how old the Ruger.

R,
Bullseye

Tbag · Post by **Tbag** » Fri Aug 31, 2007 1:57 pm

I'm going over it all again. One thing I've noticed is when I first start the disassembly of the pistol, after the mainspring is out, most of the time I need to reach in with needlenose's to gently pull down on the hammer so that the bolt will slide out the back side. I don't ever recall needing to do that with my other MKII that I use to have.

Tbag · Post by **Tbag** » Fri Aug 31, 2007 8:05 pm

Noticed something this afternoon, after a total disassembly, polishing, and cleaning. I found that when I had the pistol on safety and pulled on the trigger, I would feel and hear the dreaded click. Pop off the safety and bang.

I would then re-cock and I could either, make the pistol make that first click with or without the safety on on. After making the click the gun would operate as normal until I inserted a fresh mag.

jjfunk · Post by **jjfunk** » Fri Aug 31, 2007 8:36 pm

Have you already done the VQ hammer/ Sear yet? I am wondering if you have removed the sear to inspect it. I know that you said that you emptied the frame and polished everything, but just thought that I would ask anyways. I know that some people were talking at one time about having sears that were breaking and was wondering if yours had unusual wear or anything. The only other thing I could think of would be that stupid Mag-Safety disconnector interfering with normal sear operation but then I re-read your previous posts to see that you have an MKII, not an MKIII. Man, sorry, but I can't think of anything else.

Tbag · Post by **Tbag** » Sat Sep 01, 2007 8:42 am

JJ, I'll give up a little history, I,m the second owner of this pistol. And since I bought it, it had functioned fine. Only up till recently did this double pull bull start. The gun has a VQ upper on it the LLV, the VQ extended bolt release and their grip. It has the stock trigger, hammer and sear from what I can tell. Due to the modifications and lack of owning the original upper, I doubt that Ruger would want to fix it via warranty, but then again it never hurts to call. But I don't expect a warm welcome from them.

When I had the sear out the other day I noticed a rough spot on it near where the pin slides through. I smoothed out that spot and reassembled, but still had the same issue.

I've decided against ordering the VQ hammer, trigger and sear parts at this point, I'd rather try to figure out whats going on first. If I can't figure it out, I may give Nick a call at VQ and send this frankenstein into them for the trigger /hammer work and put the onus on them to potenially figure out whats going on with it.

Post by **Bullseye** » Sat Sep 01, 2007 9:20 am

Tbag,

Does this happen with only one mag installed or do other magazines do it too. I recall another member discovering a similar problem and it was caused by the magazine interfering with the disconnector lever. Here's his post: http://www.guntalk-online.com/forum/vie ... ?p=832#832 When I look back I see that originally you mentioned everything worked fine without a mag installed but when one was inserted the problem surfaced. Could this be the cause of your problem?

When you said you released the thumb safety and bang - did you mean that you could then pull the trigger to drop the hammer, or, did the hammer drop automatically once the thumb safety was released?

R,
Bullseye

Tbag · Post by **Tbag** » Sat Sep 01, 2007 10:29 am

Bullseye wrote:Tbag,

Does this happen with only one mag installed or do other magazines do it too. I recall another member discovering a similar problem and it was caused by the magazine interfering with the disconnector lever. Here's his post: http://www.guntalk-online.com/forum/vie ... ?p=832#832 When I look back I see that originally you mentioned everything worked fine without a mag installed but when one was inserted the problem surfaced. Could this be the cause of your problem?

When you said you released the thumb safety and bang - did you mean that you could then pull the trigger to drop the hammer, or, did the hammer drop automatically once the thumb safety was released?

R,
Bullseye

This problem is happening with or without a mag installed. I had initially posted my issue on that year old post hoping that was my problem.

When I released the safety, I would then pull the trigger and it would fire on a single stroke without having to double pull on it, I might add it would do this so long as I pulled back on the trigger while the safety was on and I could feel and hear the click, all most as if the trigger was resetting itself. It wouldn't fire automatically once the safety was dropped, now that would be dangerous.

Post by **Bullseye** » Sat Sep 01, 2007 10:51 am

Hence the reason why I asked the question, I wanted to clarify what was happening.

Your's is an interesting problem. So far we haven't located the source and all the usual suspects have been eliminated.

R,
Bullseye

Tbag · Post by **Tbag** » Sat Sep 01, 2007 11:23 am

I must say I'm getting rather good at assembly and disassembly, great practice. Bulleye too bad you don't live in south Florida, I would pay you a visit.

This is becoming the rather perplexing problem, and I just don't feel like giving in at this point, I prefer to find the ansewer to a problem.

Tbag · Post by **Tbag** » Sun Sep 02, 2007 10:01 pm

I would like to take a moment and thank Bullseye for his in depth help on my problem pistol. Happy to say we got it! While there are now a couple of smaller issue's to rectify, the main problem is gone.

Apparently there has been some work that was done to the pistol before I owned it. The internals are rather tight, so tight that the disconnect lever was rubbing against the LLV frame when the upper was attached. I hadn't noticed the small rough spot that was adjacent to the hammer end of the lever. The disconnect lever was hanging up on that spot. I proceeded to remove just a tiny bit of material and sha bam, it's working.

No double pulling, just your typical long stock yuck pull that we all love our Rugers for. The next chapter is trigger pull improvement.

Bullseye, thank you, thank you, thank you. I can't say it enough. I like it when issues get solved. It took over a week of back and forth, but we got it!

Great Thanks
TBag

Post by **Bullseye** » Sun Sep 02, 2007 11:17 pm

You're more than welcome Tbag! That one went a little beyond the normal root causes but it didn't get by us.

That long, creepy trigger pull can be solved with a new VQ adjustable target trigger and a new VQ cast sear. Once they're adjusted in your trigger pull will be vastly improved.

Great news!

R,
Bullseye