Crosman 140

Questions on a Crosman 140
May 22 2005 at 3:51 PM bowhunter4life (Login bowhunter4life)


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How hard is it to re-seal a 140 ? I have re-sealed my old 760(no problem). I have re-sealed two old Daisy 880's that were actually a pain in the you know what and didn't really turn out too well. I am wondering if I am better off hiring the 140 out.

Next question. Does anyone have chrono numbers for a stock 140 ?

Thanks


Resealing the 140/1400 series
May 22 2005 at 9:02 PM Tom @ Buzzard Bluff (no login)

Response to Questions on a Crosman 140

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First things first. A hearty THANKS! to Dave for providing a place to indulge my passion for 'Ammerican Arn'.

As for the 140/1400 series Crosmans they are easier to me than dealing with the Daisys you redone. You'll need to get the inlet valve and the pop-off cap from someone like Ron Sauls (Bryan and Assoc.) or Precision Pellet. Or Crosman may still supply them. Other than that a few O-rings from the hardware store should do the trick. If the pump cup needs replacement you'll need a pump rod. What the heck, just call Ron Sauls and buy a complete kit. Easier than chasing down the individual parts. It should even have the transfer port seal included.
Replacing the quad seal in the pop-off cap can give a newbie problems so you're probably better off buying a new cap complete. But if you're confident of your mechanical skills the seal is cheaper.
Make sure the pump cup is adjusted to just kiss the valve at full closure and that there is NO leakage at transfer port or bolt. Other than modifying the bolt to include a skinny pellet 'pusher' that's about all the 'souping up' you can do to a dump valve gun. My own favorite 1400 at 10 pumps pushes 14.3 grain Premiers downrange well into the 700 FPS range with only those few blueprinting methods.
HTH, Tom @ Buzzard Bluff