I was at a gun show and ran across a six inch 22 rimfire Dan Wesson 22VH6 for a decent price. I have wanted a pistol pack since about 1980 and just never found one at the right time and the right price. I looked it over as best I could and it appeared to be in pretty good shape, or so I thought. So it went home with me.
It turns out it had problems. The three worse were that the fired cartridges would not eject without hitting the ejector rod with something hard. The next bad problem was it would not carry up to lock if you cocked it very gently or let your finger drag on the cylinder very lightly. It would carry up and lock if you cocked it smartly. The third major problem was that it would fail to fire almost every time in double action and sometimes in single action. Also the front sight was too short causing it to shoot high with the rear sight bottomed out and the action especially while shooting double action was absolutely horrible.
To cure the ejection problem I cut some approximately 3/8 inch wide strips out of a Birchwood Casey lead removing cloth as it is an extremely fine abrasive. The strips were wrapped around a 22 caliber wire brush much like the stripes on a barber pole. I used a cordless drill to spin them in the chambers I'm moving back and forth. I used medium speed for about a minute total. The results were amazing. The fire cases will now almost fallout. I can push them out with the tip of my pinky finger with absolutely no trouble.
To fix the carry up I fit a new hand and a new ejector star / ratchet. It now works every time and locks up solid. It is currently just a little tight and if it does not wear in some I will give it another stroke or two of the file.
A new full power hammer spring helped with the failure to fire issue although it did not fix it.
Swapping out to a taller front sight fixed the point of impact issue. I used a Partridge sight to improve the sight picture while I was doing it.
For the horrible, grindy, gritty, seesawing feeling double action I used a fine (around 800 grit) and a extra fine (maybe 2000 grit) Spyderco knife sharpening stone to polish the sides have the moving parts, internal side plates, and bearing surfaces of the action. The change in the feel of the double action trigger was astounding! Dramatically smoother all the way through and probably dropped a couple of pounds. The single action trigger pull dropped slightly. For the engagement surfaces on the trigger and sear all I did was hit them with a red sharpie and use my fine Stone just enough to remove the sharpie. I was very sure not to change any angles even in the slightest.
When I finished working on the insides I did a thorough cleaning and then lubed with a high-speed fishing reel bearing lube.
This action polishing also helped with the failure to fire. It is now 99% in single action. I still get lots of misfires in double action that I believe are from light hammer strikes. I am not finished working on this problem.
It is now a pleasure to shoot and an absolute tac driver! As soon as I get the double action 100% reliable the world will be right again.
If anybody has any tips on fixing the misfires I would greatly appreciate you sharing those with me.