Lock adjustment

[Swandog]

Is the sear not deep enough into the full cock notch? Where it is in the picture I get a 3lb pull. Any deeper and it gets close to 6lbs. Am I going to damage my sear if I leave it like this?

The screws to adjust the double trigger will not turn with any of my tools and I don't want to bugger the screws up. This is a CVA Mountain rifle lock.

 

[necchi]

Photo looks fine. But yeah there is a problem.
1st things 1st.
Clean and lubricate everything,, if your afraid of soapy water, scrubbing and drying,, at least spray everything down with brake cleaner and dry,, then lube.
Ditto goes for the triggers. Go through the effort to pull the trigger and clean and lubricate that mechanism also.
Gun oil works well.
Your dealing with an old ML,, it needs to be clean and locks, triggers need lube,,

 

[Swandog]

Thanks necchi, I feel better about it now.
This photo is after 30 mins in my ultrasonic cleaner, dried by the woodstove and then lubed with rem oil. It's very clean and lubed but I know it looks bad in the picture.

 

[Boomerang]

The sear looks fine in that position to me. As far as adjusting the set trigger screw, you might have to remove the trigger guard in order to get a square bite on the screw. It probably has some thread lock on it from the factory.

 

[necchi]

There's actually a small screw in the tumbler that can be adjusted to change the depth of sear engagement.

It likes to move around by itself (or there's a Gremlin that moves it!) unless held in place with loctite or nail polish.
That screw and 3 different adjustment on the trigger are all part of a balancing act to get the Spanish made rifles functioning smoothly.

One issue that haunts the old CVA MR is the trigger inlet wood itself. With many the old wood has dried and decades of folks with gorilla hands over-tighten the tang screw compressing the wood. This leads to the trigger being too deep in it's inlet, forcing the rear cam to be in constant contact with the sear,, when it happens,, the lock can only be brought to full cock after the rear trigger is set.
The fix is to place spacers under the trigger plate or re-bed the area.

 

[Swandog]

Yes, that screw is too easy to turn. I think I'll degrease it again and blue lockit. Most of my other rifles are at 3 lb and this one breaks nice and crisp. I may not even try to adjust the other trigger screws.