I picked up a high standard sentinel mark iv 22mag parts gun
it was a mess inside, straightened everything out now functions properly. Problem remains with the extractor stuck in the cylinder. I can tap on the extractor rod to get the extractor to extend out, have to tap on the extractor to flush it back up with the cylinder

The extractor rod rotates both clockwise & counter clockwise but does not unscrew….I am stumped how to disassemble the cylinder.

Hoping someone can give some advice.
thanks
Jack

On the diagram it looks like it's held together by a pin (#10) through the cylinder lock plunger (#9). That's my guess.

High Standard MKIV Sentinel Parts for Sale | Numrich Parts

that pin #10 is below the extractor star, not sure how to access
will work on it
thanks

As I recall there's another pin in the ejector shaft itself that's driven out first.
This allows access to the other pin, #10.

Look at the ejector shaft in this drawing, note the pin hole........

Ejector MKI SENTINEL, MKIV SENTINEL HIGH STANDARD

You are very correct but I have looked very closely at this whole in the extractor shaft there is no pin to push out All I can see is the extractor spring pushing up on the plunger can't believe this is so difficult

It's been many years since I worked on one of these so I'm not certain about this........

I "think" (note the qualifier) that the hole is to allow a retaining pin to be inserted to block the ejector rod out of the ejector. That would allow punching out pin #10 and allow the assembly to come apart.

Try holding the ejector in and pushing the ejector rod. If the rod moves out of the ejector, insert a pin to hold it out while you push out pin #10.

If this fails, try posting on the High Standard forum.
Don't just start banging away and damage the assembly. Parts may be hard to get.

Also, look for videos on Youtube.

As I recall from years ago, the key is getting pin #10 out. The High Standard requires three hands and appropriate language to work on.

I think later models ejector rods were threaded and lacked the pin and lock plunger.

I have a Sears Model 88 version of the High Standard Sentinel. It’s the earliest version of the Sentinel and is somewhat different from your revolver (and my version does not have a return spring to reseat the ejector into the cylinder).

To find the pin on my ejector, it is necessary to very firmly pull the ejector away from the cylinder body and hold it against the cylinder lock spring. Then you should be able to see the pin on the ejector.

On mine, the pin was stuck (and not visible) inside the cylinder – probably by a burr in the channel the pin was riding in. A pretty hard pull was needed to get the pin visible.

After that, my guess is that pulling that pin out of the ejector will free things up.

If this is how it’d done, getting that short pin out with everything under spring pressure looks really difficult – and replacing it looks even worse.

Good luck!

On closer examination, on my revolver it looks like the two small opposing holes on the ejector shaft might be an access to a concealed pin that appears (as far as I can tell) visible when the ejector is pulled forward and is firmly held against the cylinder lock spring. If so, a small punch could probably remove it pretty easily.

That makes more sense, at least on my revolver. The exterior pin, I suspect, solely rides in a channel and keeps the ejector lined up with the cylinder.

I might simply be saying what dfariswheel already said!!

dfarriswheel you are correct….figured out how to push the smallest roll pin ever out of the extractor shaft…takes three hands, push plunger pin down, line up hole in extractor rod with plunger pin then psh out roll pin…two small vise grips for third hand.
I do believe some gun designers are also mad scientists

thank for you help
Jack

Don't forget ... when doing this ...
... you have to hold your mouth right !

Great job in getting this one sorted out...
This Site is Amazing !
Gary

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But did you use appropriate language.
The High Standard revolver was infamous for difficult disassembly, everything being held by pins.
There's only one screw and that's the grip screw.