You know that though just occured to me before i read your post.
I was shooting and could smell the product of ignition...
I did my best to clear compression chamber with a few empty shots.
But I could still smell an ignition.
Thanls for the tip Chinese instructions say to oil it.
Clean and oil......
No speciufication for the oil though.
What do you use?
I have some Fluid film.
Thats lanolin and wool wax.
Does not burn as redily as a petroluem product and is good for leather.
I use that on lantern pumps.
It needs to be non petroleum so it won't ignite. Crosman sells a lube called Pellgun Oil that will work. Or any synthetic oil I guess. What happens is cocking the gun compresses the spring. Firing the gun unleashes the spring sending a piston with a rubber or leather seal screaming down the compression tube at a million mile per hour compressing the air in the chamber to a thousand PSI or so, superheated like a diesel engine, the air goes thru a transfer port to behind the pellet & it goes out the barrel. Put just a drop of oil in there & you have an explosion that will melt the seal. As I said, you can smell it. And hear it.
More bad news...
The system depends on the pellet being in the barrel to keep it from destroying itself. The piston is screaming through the compression chamber heading for certain death. What stops it is the air it's compressing. The pellet has plugged the escape path. At some point near the end of the piston travel, the pressure hits it's peak... again, KPSI, the piston stops, can go no more, and actually reverses direction... bounces off the compressed air. At this same time, the pellet is overcome by the pressure & goes down the barrel. The piston, still driven by the spring, reverses again & coasts to a stop.
Now, leave out the pellet, fire the gun & the piston slams face first into the end of the compression chamber.... no compressed air to stop it. Bad thing. It might survive a trip or two, but it's certain death.
They don't put this in the instructions, huh?