GTA
Airguns by Make and Model => Crosman Airguns => Topic started by: specter208 on November 03, 2014, 05:04:07 PM
-
Hello guys, I have an issue with the right side stock mounting screw of a Crosman Phantom. I removed the stock to tighten the pivot screw and now I cant reattach the stock completely because the right side screw wont turn in after it is inserted about 3/16 of an inch. The hole looks noticeably rougher compared to the other ones but I don't understand how the screw was even inserted from the factory. It wont turn and I'm hesitant to use more force to prevent stripping. Can anyone help me! thanks in advance!
-
On my Phantom model CS5M22 with the plastic stock, the screw is 5mm diameter by 14mm long. I'd be inclined to pick up a 5mm tap and clean the threads. If the hole is stripped, it may need to opened up and tapped for a 6mm screw or even larger to 0.250 inch 28 pitch.
-
I'd think about having a machine shop install a thread-sert if the hole is stripped and you can't do it yourself.
That said, take the action out and look closely at the hole and the screw. What is the condition of the threads? I'd replace the screws with better quality hardware even if they are still good but in my (somewhat limited) experience these screws are VERY soft. If it's the hole then follow the above advice and chase the threads with an M5x1.25 tap. A good trick is to slowly spin the screw backwards and feel for it to drop into the first thread before you try to screw it in.
It definitely sounds like one or the other is chewed up but you can probably still pull it out of the fire at this point.
Let us know what you find and welcome to the GTA!
-
Try taking the action out of the stock again. Use the good screw from the opposite side to screw into the chewed up hole and visa versa while it's out of the stock. If you feel it starting to stop, back the screw out, blow out shavings if any and repeat until the screw gets fully seated. You could even put a drop of oil in the whole. You want to chase the bad hole with the good screw and good hole with the bad screw. Hope this helps.
-
You want to chase the bad hole with the good screw and good hole with the bad screw. Hope this helps.
I've got to disagree with that. I think you definitely DO NOT want to run a bad screw into a good hole. Spend a few bucks on a tap if you don't have one and another buck on two new screws. You local Ace or other hardware store will have both.
With better metal in the compression tube you might chase out a very mildly damaged screw thread but this is soft stuff, at least on my Trail and NVD.
-
If you opt to tap the hole, you need a bottoming tap and the screw is metric.