model 28 cylinder replacement

[bob42]

can I just swap in a new model 28 cylinder using the existing ratchet and ejector rod? Only component change would be the cylinder. No fitting required??
Thanks

 

[murphydog]

The answer is - probably. May still need minor fitting.

 

[armorer951]

The old, existing ratchet/extractor will not fit into a new OEM cylinder, if that's what you are considering.
Depending on the age of the revolver, a new center pin may be required, and will need fitting. The extractor rod will be compatible, but will also likely need minor fitting.

Carter

 

[bob42]

I was thinking a used cylinder of same vintage.

 

[armorer951]

I misunderstood your question. You posted, "can I just swap in a new model 28 cylinder".

 

[Alk8944]

can I just swap in a new model 28 cylinder using the existing ratchet and ejector rod? Only component change would be the cylinder. No fitting required??
Thanks

The first question is WHY? Is there a problem with the gun and original cylinder? Let's start there.

 

[steelslaver]

Maybe. Might need to shorten yoke tube or shim it to either get clearance for cylinder to close or reduce end shake. Hand and ratchet may work. You might also need to adjust length of extractor rod Some times you get lucky and sometimes you have to do some small adjustments

 

[Dvus]

The first question is WHY? Is there a problem with the gun and original cylinder? Let's start there.

The question has already been answered in the op's mind. He may or may not wish to share why it is necessary, the only important issue is that he has determined that it IS necessary.

To that question, I would say that you have about a 40% chance of another cylinder dropping in and working satisfactorily IF it is of similar vintage AND if it includes it's own extractor star. Minor fitting being necessry is more likely with a smaller chance of needing to fit a new hand. But trying to use the original star with the new cylinder all but guarantees that a good amount of fitting will be required. IMO.

 

[steelslaver]

Ya the old style rachet stars usually will not exchange from 1 cylinder to another. The problem is the alignment pins were match drilled to each cylinder and almost never line up when ratchet is traded. There are work around but best to keep ratchet and cylinder as a set. About 1/2 the time when trading cylinders I run into small yoke tube variations and need to trim tube a tiny bit or shim a bit, maybe 10-20% of the time extractor rod/center pin adjustment to work with barrel lug. Usually the hand will carry the cylinder to lock up, but not always.

But, I have installed recent vintage odd ratchet arm cylinders in 1917 guns and older cylinders in newer guns. The overall shape of the teeth has changed, but the surfaces the hand operates on is the same

 

[bob42]

thanks to all for replies.