Air Gun Home :: View topic - Anyone else see this? B1x/Quest/Phantom/G1/etc. guns...

AirGunEric · Site Admin

My Quest would not close firmly earlier this week- so I thought perhaps the barrel/receiver bushings had finally worn (still has plastic pieces installed). When the barrel was raised after cocking, it was always a bit loose and wiggly.

So, I finally got it apart- and the "alive jam" as Crosman labels it- the spring-loaded pointed pin, or detent that contacts the other detent at the lower edge of the receiver to hold the barrel up firmly- was stuck in place. Don't know how this could have occurred- but it was only moving a fraction of what it should be, barely having any contact with the pin on the receiver to keep everything tight. So I took it apart, cleaned it off and lubed it a bit and reassembled everything. Now the match between the barrel and the receiver seems "like new" again- very tight and no wobble whatsoever.

I'm wondering if anyone else has encountered anything similar? The only thing I can think of that could have caused this was dirt getting in around the pin/detent and jamming it up.

23ib0d0n · Moderator

Seen it a few times. When the 'cosmoline' dried or from actual rust. WD40 or Liquid Wrench to the rescue.

AirGunEric · Site Admin

Do they actually term the lubes used in some airguns as "cosmoline"? I don't hear that term used much anywhere these days- of course I also don't hang around machining forums or shops either. Very Happy

The lube in this Quest seemed pretty fluid- probably because I've oil it in the past and that thick, waxy lube the Chinese seem to love was obviously thinned out or perhaps even displaced. It almost seems like maybe the sticking of the 'alive jam' was because of some sort of mechanical interference (the pin that goes through the barrel support was slightly bent- for no good reason I can determine- but I can't see as how that stopped the detent from moving).

Ah well- fixed now, so we'll see if it returns again someday...

23ib0d0n · Moderator

Just figured 'cosmoline' sounds better than 'chinese goop lube' which of course could be just about any gooey substance that was retrieved from the differential of a dead transport truck . . .

airbuddy3 · Member

Hi Eric ,
The detent was Galling in the breech ....I always take it out and degrease it and polish it and the cavity it fits in the breech .
Take out the detent spring and dremel the sharp wire ends and polish the ends , then use molly paste containing 65% or better MOSO2 on the detent spring , the detent , the cavity for the detent as well as the breech pivot sleeve and the breech screw .

It will be as smooth as silk for life after that Cool

DO NOT USE ANY TYPE OF SILICONE OIL Includeing WD40 or any formulated lubricants that may contain Silcone oil .
as they displace any lubes and displace water ..and lead to severe galling and siezing up of the parts in short order .

WD40 contains silcone oil ,and is more of a degreaser and water dispersion agent usefull in locks and protecting the surface from moisture ...ok to wipe down the blueing .

If you are looking at a lube ..the things to look for would be "water dispersing formula " this is code for Silicone oil .
If you are unsure DO NOT USE IT .
There really is no use for any oil inside a springer . Pelgun oil or motor oil can be used mixed with molly 50% 1-2 drops at the links and on the detent every 250 -500rds . This mixture can also be applied to the trigger parts to give a smooth trigger pull .

I have seen horror pics ..where someone used silcone oil on a seal or on the piston ..and the reciever tube and the piston have deep gauge marks
and consequently the piston seals get Gouged out every 100 rds .
Tragic and preventable .. the gun is junk and not worth fixing as it would take many hours of honeing ..more than the gun is worth new .
Told the guy keep it for parts .

Regards ,
Frank