striker/sear interface problem fixed

[SWShootinDave]

For anyone who ever has this malfunction: I inspected the striker's sear-contact face and saw that it had neutral engagement with the sear. So I grabbed my trusty hard Arkansas stone--the best--and very slightly reprofiled--I'm talking a few thousandths or so--the striker's sear-contact face to more neutral-positive engagement. The problem of striker/sear skipping--and causing an uncocked striker upon slide release/lockup--is history.

 

[staylor]

I thought you said in a previous post you had fixed the problem by removing, cleaning and lubing the sear. Did the problem reappear?

 

[SWShootinDave]

I thought you said in a previous post you had fixed the problem by removing, cleaning and lubing the sear. Did the problem reappear?

I couldn't be sure of the cause so I added the insurance of reprofiling the striker's sear-contact face, because it was probably contributing to the tolerance/disengaging problem being neutrally engaged with the sear.
Since the reprofiling of the striker's face, I've slingshotted dummy rounds numerous times and the striker-disengagement problem hasn't recurred.

 

[JAREDSHS]

For anyone who ever has this malfunction: I inspected the striker's sear-contact face and saw that it had neutral engagement with the sear. So I grabbed my trusty hard Arkansas stone--the best--and very slightly reprofiled--I'm talking a few thousandths or so--the striker's sear-contact face to more neutral-negative engagement. The problem of striker/sear skipping--and causing an uncocked striker upon slide release/lockup--is history.

Just curious-----what is this "" neutral engagement with the sear""

 

[familyman357oh]

1.) The term for what you did is "positive engagement" (i.e. created more engagement). Negative engagement would have made it more prone to disengagement.


2.) Remind me to never buy a used gun from you.

Original thread: SW9VE trouble

 

[Steve912]

Just by chance, did you also happen to remove the aftermarket
parts, and reinstall the OEM S&W parts?

Jared, he may be talking about changing the engagement angle
of sear/striker...?

 

[ken158]

Maybe S&W should hire you as an engineer since you believe you know how to repair non existent problems?

 

[JAREDSHS]

Just by chance, did you also happen to remove the aftermarket
parts, and reinstall the OEM S&W parts?

Jared, he may be talking about changing the engagement angle
of sear/striker...?

Yup, that is what I thought was going on....sort of a foolish idea {in this man's opinion} but it is "HIS" gun. Just happens to be the wrong solution to the problem that he originally posted about.

 

[SWShootinDave]

Just curious-----what is this "" neutral engagement with the sear""

Neutral engagement of the striker with the sear is the minimum-required engagement--contact--that allows safe, reliable operation. Apparently the engagement of my SW9VE's striker/sear was too minimal, or negative.
I messed up and called the stoning/reprofiling I did 'negative' where I meant 'positive' engagement [thanks fam.man357oh] which is more contact between the striker and sear. The numerous dummy-round 'slingshots' and dry fires I did bears this out...the contact area on the striker is observably larger than it was previously.
And my dummy rounds have pieces of hard-rubber washer in the primer pockets, so there is no damage to the striker or breech face done while dry firing.

 

[SWShootinDave]

Yup, that is what I thought was going on....sort of a foolish idea {in this man's opinion} but it is "HIS" gun. Just happens to be the wrong solution to the problem that he originally posted about.

My SW9VE is again happily reliable after the slight reprofiling of the striker's face--and I also cleaned the sear block--so if it wasn't the correct solution, at least it was effective. The striker hasn't disengaged/decocked upon slide release/lockup from numerous slide drops or 'slingshotting', both with with a dummy round, since.

 

[SWShootinDave]

Just by chance, did you also happen to remove the aftermarket
parts, and reinstall the OEM S&W parts?

Jared, he may be talking about changing the engagement angle
of sear/striker...?

There were no aftermarket parts installed. I thought about installing an aftermarket sear spring but didn't. I had removed the 'pigtail' spring and outer sear spring. That was done some time ago and the pistol functioned fine for a long time after.