Sheridan Help with my childhood Sheridan

The hardest part of my valve service was holding the hammer spring tension and screwing the valve retaining nut in without cross threading it.
I was determined to put it in the same way it came out, but I couldn't get it, and wound up flipping it.View attachment 528910
So flipping it is ok? I saw some video where somebody had the same problem.
 
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I plan on tackling the project myself, I'm fairly mechanically inclined, I may get into and change my mind, but I'll give it a go. I ran across a kit that includes the tool to remove the valve. https://www.bakerairguns.com/product/sheridan-c-seal-kits/
I'm glad you mentioned .20 caliber, I couldn't remember if it was .20 or .177.

Edit; just ordered the seal kit and the bolt, I'm committed now, ha.
I look forward to your feedback!
 
I plan on tackling the project myself, I'm fairly mechanically inclined, I may get into and change my mind, but I'll give it a go. I ran across a kit that includes the tool to remove the valve. https://www.bakerairguns.com/product/sheridan-c-seal-kits/
I'm glad you mentioned .20 caliber, I couldn't remember if it was .20 or .177.

Edit; just ordered the seal kit and the bolt, I'm committed now, ha.
You will also need this pump head to use with the pump cup in the kit that you ordered, unless it had already been swapped out in the past. Up until the early 60's, Sheridans had cups that were molded into the head and are not easily replaceable.
 
The old Sheridans had a great trigger and give good accuracy with modern .20 pellets, so well worth fixing up in my opinion. I also like the tang safety on yours as it encourages the thumb top hold that is still used by many top shooters since it prevents torquing the stock. I rebuilt mine myself, so it can’t be too hard. I did make a special tool to remove the valve, maybe something similar is available to purchase. If you are sending it out for rebuild, ask to have the receiver drilled for a receiver sight, or maybe you can do that yourself. Good luck!
The trigger is great on these old Sheridans. Why do they have to recreate this design into many moving parts, resulting in a sloppy stiff, who knows when it's going to go off, mess of a trigger.
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You will also need this pump head to use with the pump cup in the kit that you ordered, unless it had already been swapped out in the past. Up until the early 60's, Sheridans had cups that were molded into the head and are not easily replaceable.
Thanks, I'll go ahead and order that. I'm almost certain it's never been opened up.