Sheridan Technical Repository - O-Rings, Screws, and All

[evilfishsticks]

Does anybody happen to know the size of the safety bearing for the pgp? Lost mine years ago, but I'm trying to get my pgp back up and running and would like the safety to work.

[BrickHaus]

Cut it long, the body needs to depress it into the frame to make tension.

[BrickHaus]

I happened to find a safety ball in q baggie and have my calipers. It measures .077"

Spring I would imagine has a similar od.

[evilfishsticks]

Some quick conversion showed that 2mm is .078". I'm going to grab some 2mm bearings and try them out.

[BrickHaus]

[evilfishsticks]

Can confirm, 2mm ball bearing works properly for the safety.

[AnarchicArctic]

Anybody know the size and thread spec of the rear sight screws?

[netsurferdude2]

3-48 x 0.095L
Slotted Pan Head

[AnarchicArctic]

Thank you!

[JeeperCreeper]

Weird I was literally going to ask this question

[BrickHaus]

Springs! Talk yto me about springs.

My lever walz has my kp3 spring in it right now. It is hard af to rack the hammer. I think its essentially a kp2 parts wise though.


Im looking for the softest hammer spring I can get away with, and I assume I need a valve spring to match. I planned on pulling the spring and ordering something similar with less poundage. But I remembered you guys may have already done the leg work.

Anyone have the spring info for these ( size and strength more than the sheridan part numbers? ) we may as well detail Pgps, P series, and kps for the benefit of us all.

This will allow us all to start springing these more like cockers.

[BrickHaus]

I knew someone was doing some research!!!

I found a few on Mcmaster that are similar to size to my example, but they are 4.75lbs per inch. I am not sure if thats heavier, or lighter than what I have.

Would you be willing to sell me a few valve springs? That part should be absolute.

[Jordan]

Cocker valve springs work with Sheridans... they might need trimming but I've used them (and pulled them out of PPS guns) so I know they work.

Having a mainspring guide pin is pretty important with the rifles, I've found - the spring tends to bunch up and gives a grindy pump stroke without it. My KP feels like butter with the guide.

[BrickHaus]

I do have a spring guide, its fairly smooth. It just takes a lot of force to get that sear click. Even if I grip my bolt and pull it back manually its a fairly hard to rack.

[BrickHaus]

Well. The spring I have seems to be cut. I intend on putting it back in my kp3 so Ill leave it as it works in that shooter.

It measures 2.675" long, and .290" OD. Its heavy.

I don't know exactly how to measure a spring poundage, but here is a start.

[Brokeass_baller]

Usually for springs, in my experience, it's similar to thread gauge. You measure the thickness of the steel, and you count the number of coils per inch, and outside diameter. Then you order by the inch. There are a few different coil ends you can choose from, like cut and ground, just cut square. And there are coil types, like square coil (like Automag springs), etc, but those are the basics.

[Jordan]

I had this posted elsewhere in this subforum but in the interest of disseminating information I'll post it here.

The metric tube can be used as feedtube but also accepts the thinwall .750 od brass tube listed - with some work they can be combined into a barrel assembly that accepts Freak inserts. It's also worth noting that the resulting assembly is only about .015" larger than a stock Sheridan barrel's OD, so it's possible to use PPS style detents.

Here's the Amazon link for the 21mm tubing:

YTGZS H62 Brass Round Tube... https://www.amazon.ca/dp/B0B7DPFSM8?...p_mob_ap_share

I bought two sticks of .692 tube from onlinemetals.com because I hate running out - shipping to Canada sucks - but you can use the .686 stuff instead. Stock Sheridan bolts fit the tighter bore fine, but you might need thinner orings.

The .692 tube (pricey!):

https://www.onlinemetals.com/en/buy/...id/mp-00000876

The .686 tube is good but I dont know how tight the QC is on it. I've ended up with .678 and .682 ID tube instead before, so you might be better off ordering the bigger stuff. The current batch I have runs .685, so pretty close.

You can find the .686 here:

https://www.onlinemetals.com/en/buy/...less/pid/21052


.680 id Titanium seamless tubing:

https://www.onlinemetals.com/en/buy/...less/pid/17803

[chops]

Anyone know the specs on the bolt O-ring for the PGP?

[Jordan]

#111.

[Trbo323]

Anyone have the thread specs for the 12g front plug for a cartridge valve pgp? I might need to get a tap to chase the threads and clean them up

DocsMachine I bet you have them

Sent from my motorola edge 5G UW (2021) using Tapatalk

[netsurferdude2]

13/16-28 for the standard PGP bottom tube.
For a 2k PGP, It is the same thread as the quick changers doc is working on. I think it is a 4 start thread so you cant get a tap for it.

[JeepDVLZ45]

What threading is a PGP Lug?

[netsurferdude2]

8-32 on all sheridans.