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622 Crosman Valve Stem Rebuild Kit
Quantity in Stock:55
Complete Valve Stem Rebuild components for one Professional Rebuild of the Crosman 622 Exhaust valve Assembly. Not an exact copy but works great. We use 100% Polyurethane seals so our guns DON'T Leak. Made in USA by Mac1. A propane torch can be very helpful to get the brass head to separate from the steel stem and later models need the head drilled out to push the stem out. The seal fits in the brass head and you use a 1/8" hole in a anvil to drive the head onto the stem. It is a good policy to use a permanent thread locker in the brass head for insurance. Once the head is pressed together it can be trued and faced off to ready it for use. Heat the entire gun up to toasty when you first charge it so the seals will be supple and the pressure will be high. Making sure there is no damage to the valve seat where the seal sits is very important as the Mac1 seals are hard enough so you can leave the gun charged all the time. Getting it to seal initially can be impossible if there is any seat irregularity. Polishing the seat is often required to remove any scratches or abuse.
If you use the parts that make for the most reliable repairs imaginable a DIY project can be the best investment you ever made in an airgun. Quality parts last. This kit is the brass head and seal only. It is not a replica of the factory head but gives more valve volume and flow for more power.
The 622 needs a hole drilled in a specific spot as shown in the picture. With a 1/8" spring pin driven into the strategically positioned hole the 622 valve and tube will never separate again. Planned failure cancelled with one hole drilled.
622 DIY Tips Video
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