Author Topic: Double trigger adjustment  (Read 6521 times)

frontier gander

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Double trigger adjustment
« on: November 05, 2008, 08:35:22 AM »
Rifle is a CVA Mountain rifle. The rifle has been like this since i bought it but the rear set trigger was extremely hard to pull back and set. I  just now unscrewed the tiny adjustment screw a bit and then adjusted the front. 

I am now to the point where the hammer will not stay on full cock unless the set trigger has been set first.

I've owned a number of double set trigger rifles and they never done that so this one leaves me scratching my head. 

If i screw the front trigger adjustment screw in, nothing will engage, No half cock, no full cock, zip.

Offline Dave B

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Re: Double trigger adjustment
« Reply #1 on: November 05, 2008, 09:15:12 AM »
Frontier Gander,
The trigger needs to have the main spring backed of a a bit. The reason for the stiffness of the rear trigger is from the mainspring. Some folks install a secondary screw that prevents over travel of this spring but you can get a result from just backing off the large screw that holds the main spring in place. It generally only takes a quarter turn to do the job. You will need to remove the trigger guard and the triggers to make this adjustment. The over travel screw needs to be installed immediately behind the rear trigger to block the downward travel of the main spring beyond where it presses up too hard on the sear bar preventing full engagement of the full cock notch and some times half cock as well.
Dave Blaisdell

frontier gander

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Re: Double trigger adjustment
« Reply #2 on: November 05, 2008, 09:42:59 PM »
If i back out the rear screw a hair nothing catches. I had it working for a bit but when i push on the back of the hammer it would set off, or even if i had it on half cock and squeezed the trigger it would drop the hammer. I have it set up as a single trigger right now and will mess with it after hunting season.

Any aftermarket triggers for this rifle?

Offline T*O*F

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Re: Double trigger adjustment
« Reply #3 on: November 05, 2008, 09:52:56 PM »
Take the trigger assembly out of the gun and get it working properly.  Before re-installing it, put a double thickness of cereal box at each end of the mortise.  Then re-install the trigger.  Test.  If unsuitable, add more cardboard shims until it works.

Once you get it working, measure the thickness of the shims.  Sand down a popsicle stick to that thickness, fit it and glue it into the mortise.

Most of these CVA's have the inlets hogged out too deep.  Then the problem compounds with repeated overtightening of the screws.

Dave Kanger

If religion is opium for the masses, the internet is a crack, pixel-huffing orgy that deafens the brain, numbs the senses and scrambles our peer list to include every anonymous loser, twisted deviant, and freak as well as people we normally wouldn't give the time of day.
-S.M. Tomlinson

frontier gander

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Re: Double trigger adjustment
« Reply #4 on: November 05, 2008, 11:03:43 PM »
 >:( i hate double triggers, just spent 15 minutes working on it before i finally got it working. The shims i think is what solved the problem along with screwing in both screws and then slowly backing them out and testing.

don getz

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Re: Double trigger adjustment
« Reply #5 on: November 06, 2008, 04:17:56 AM »
Frontier......don't get too disgusted with double set triggers, after all, the ones you are working on have three basic
problems.....a "C", a "V" and an "A".......really not the best quality stuff you can get.........Don

frontier gander

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Re: Double trigger adjustment
« Reply #6 on: November 06, 2008, 08:10:06 AM »
lol theres always that chance too.  I got her shooting great now so now all i need is some cold weather and a cow elk to walk into my sights.

northmn

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Re: Double trigger adjustment
« Reply #7 on: November 06, 2008, 02:00:33 PM »
Actually, on a hunting rifle, I do not like set triggers.  they can be adjusted too light for cold days when you need to feel the trigger, one more thing to monkey with and cannot be used to soften the "click" when you cosk the rifle.  A single trigger can be used to put pressure on the sear and eliminate that.  Some have scared deer with the click of the sear engagement.  A good single trigger can be adjusted to the pull I like.  However, you have that rifle to use and need to make the best of it. It will probably serve you well, good luck good hunting, have fun.

DP