Five mods for Crosman 38t or 38C

[Septicdeath]

Power mods for a Crosman 38T or 38C

1. Drill the sleeve around the spring into swiss cheese like pattern. Creating more co2 volume

2. Open up the exhaust port. creates more flow.

3. Shim the magazine for a tighter fit to the valve
body

4. Adjust the barrel so it just barely touches the magazine but dosen't bind. Stopping some of the loss of co2

5. Relocate the hammer spring guide pin to re-arch the spring, or a stronger hammer spring to open the valve a bit more when the hammer engages the valve.

Read More

 

[Frank RW]

a blurry pic of a gun on a dirty carpet just doesn't do it dear sir.

show us the process or at least the parts mentioned!

 

[Septicdeath]

1. drill more holes the sleeve tube with hole in it . I drill 6 smaller holes in each side of the existing ones. Here's where it goes in the valve assembly.

2. Enlarged the port in the valve body.

3. Shim the front side of the magazine cylinder. I used a piece of derlin.

4. Adjust the barrel so it is sung against the magazine cylinder but not binding. There is a set screw so this is easy to accomplish

5. The hammer spring has a pin that can be moved up or down to adjust the hammer strike.

 

[Septicdeath]

There better picture. The carpet is in front of one of my workbenches. It will probably never be clean.

 

[gunnut38]

Thanks for posting this. Have purchased seal kit for this gun? I have two I need to rebuild.

 

[Septicdeath]

Thanks for posting this. Have purchased seal kit for this gun? I have two I need to rebuild.

Did you get the .22 or the .177
If you need any guidance let me know. I have done at least 50 of them.

 

[gunnut38]

I have one of each. Both leak. I bought .177 new in 1978 and the .22 a couple of years ago as project here on NWFA .

 

[gunnut38]

I realized I had a typo in my question. Thanks for posting this. Have you purchased seal kit for this gun? I have two I need to rebuild.

 

[Septicdeath]

I buy them from this gentleman. He lives in Bellingham WA.

Crosman 38T / 38C Seal Kit COMPLETE, All Parts Are OEM Spec. (4000+ Sold) | eBay

This is a complete set of seals for all versions of the Crosman model 38T & 38C in both. 177 and. 22 cal. (I majored in Plastics in college) I am on my fifth batch of 1000. I do not substitute 0-rings where the manufacturer designed for gaskets.

www.ebay.com