Author Topic: Timney install (Read 735 times)

PeterB · « **on:** April 13, 2005, 05:20:31 PM »

Just got a stainless Timney trigger for my wifes Ruger 77 compact. I just couldn't stand the 6-1/2 lb pull. She thinks I'm nuts. She doesn't know what is important, but we'll leave that at the bedside. Anyway, the instructions seem relatively clear without taking the rifle down. Any of you who have installed one have any advice beyond the included instructions? Thanks
Peter

ScoutMan · « **Reply #1 on:** April 16, 2005, 07:11:15 AM »

Peter,

My buddy (who is more machinist talented than I ) installed the Timney on my compact. It now breaks at 2 lbs, 1 oz. There is some fitting. In order for the safety to work with the timney, the safety tab on the Timney needs to be fitted per the instructions.

If you do not wish to get into this swamp, see what you get when you install the timmney sear and the Timney trigger return spring. Keep the Ruger safety and trigger.

Please post back on your results.

PeterB · « **Reply #2 on:** April 16, 2005, 08:21:36 AM »

Scoutman, here is what I found so far. I installed the new sear, spring and trigger. No matter how tight I made the spring, the trigger would slam fire about 50 % of the time when I closed the bolt. I re-installed the original spring and found that I could get a 2lb pull with the new sear and trigger(ZERO slam fires). When I installed the new sear, original spring and original trigger I could get a 3lb pull, but it wasn't as crisp as I would like. Now I have not made an attempt at filling the safety tab on the new trigger to fit my safety. I am amazed at how much it "looks" like I will have to remove. Maybe I'll try it tomorrow. The new trigger/sear and old spring combo sure do make for a nice trigger pull. I'll post back at how I do with the safety fitting. If I screw it up I will still have a substantial improvement with the new sear/old trigger combo.

ScoutMan · « **Reply #3 on:** April 16, 2005, 11:31:09 AM »

Peter,

My buddy said that he had to remove about 500 thousands to get mine to work.

Go slow. For the first time at least stay away from the Dremel tool and do it with files.

I'm keeping my fingers crossed for you.

gunnut69 · « **Reply #4 on:** April 16, 2005, 03:49:00 PM »

ScoutMan - I think you mean 50 thousandths as 500 thousandths is 1/2 inch.. They have to make them over size because of the variance in ruger tolerances.. Follow the instructions and GO SLOW. It's a lot harder to put back than to file off.

PeterB · « **Reply #5 on:** April 17, 2005, 12:46:56 PM »

I'm guessing 50 thousandths is about right. I was figuring around 1/16 inch is what is needed. Still allot more than I expected. I figured it would be closer to a few thousandths. Anyway, planning on giving it a try tonight. I'll keep you posted.

PeterB · « **Reply #6 on:** April 17, 2005, 02:16:45 PM »

DONE!

I marked the side of the trigger where the safety came in contact with a very fine sharpe pen so I could see just about how far I had to go, keeping in mind that the mark needed to stay. After several fillings and refits it's in (I didn't want to believe my mark). Functions flawlessly. I used the original spring since I wanted greater than 2lb pull. Set it at 2.5 lbs to try it out. We will see if I need to make it a little firmer or not. All in all it was not to bad. I'm sure I'll be doing more in the future.

ScoutMan · « **Reply #7 on:** April 24, 2005, 05:12:56 AM »

PeterB,

Great job!!

As an aside. Mine is retrofited with an Ashley ghost ring rear and an Ashley post front sight. The whole thing with sling but unloaded weighs 7 lbs. even. I stayed away from a scope as I wanted the rifle to meet Jeff Cooper's criteria for a "scout" rifle which is 7lbs. in weight and one meter in length.