Google for a pic of a 41. I don't think any other looks like it. 


I would not pull the top off unless I really needed to. Removing the chuck is
easier.


Also, there isn't an oil reservoir, per se. A few drops int the oil hole kind of
works it's way throughout the internals.


As I mentioned before, spirits works well. I flush through the oil hole using a
syringe. WD or sefoam or kroil or any other light mystery juice in an aerosol
can with a small straw will do as well, but cost more. Or, soak in a bucket of
kerosene. That works too.


Also note that the color could be grunge or could be the brass (bronze?) showing
through the shiny coating. The yankees were mostly chromed or nickeled brass.


Every one I have has play. These are not precision mechanisms. If there is too
much, the utility of the tool is compromised, but that is a surprisingly large
amount. There are no seals-- or guides, or bushings in the sense of precision
machinery, for that matter. They are simple and a little sloppy. Fluid goes in,
fluid and crud wash out.


Unless there is an emotional tie to the tool, or it is a special collectable,
don't worry too much. There are a LOT of these out in the wild, and I see them
in good user condition for $US1 or so regularly, which is why I have roughly a
dozen (one in each main kit, two in the shop, plus a few spares in the drawer).
You won't likely damage it, but if you do, it is replaceable.



*** This message was sent from a convenience email service, and the reply
address(es) may not match the originating address




On Saturday, February 2, 2019, 7:38:49 PM EST, RH  wrote: 




>Thank you to all who have responded.  The information is great.

>So far, I've used a brass brush and WD40 and removed the top layer of 
grunge.  I also revealed the mark "Yankee 4?" which I take to be a 41.  
I plan to remove the top pin so that I can remove the handle and can 
give it a bit more attention without affecting the other parts.

>I have not tried disassemble it.  After some more cleaning, I think I'll 
flush the oil reservoir with ? . . .   mineral spirits maybe?  Then 
refill it with light machine oil.

>The rotating/retracting lower shaft seems to be colored much like the 
oil dip stick in a car engine with a brownish stain.  I noticed that 
each time I rotated and retracted that shaft, I was getting a dark brown 
liquid until I depleted it.  My guess is that the WD40 got up into the 
working chamber and washed out some old oil.  Should the seals prevent 
any liquid getting in or out?

>There is a small amount of 'play' in the mechanism.  It's not sloppy, 
but I can rotate it about 1/8" holding each end.  Is this anything to be 
concerned about?

>Again, thank you for all the pointers.

>Bob Hutchins
>Temple, TX

On 2/2/2019 4:10 PM, Erik Levin via OldTools wrote:
> Bob asked:
>
>> How would you go about disassembling - if you would - this tool
>
.
.
.