SOURCE: My crosman 1377 won't pump up. Is there a
The pumps seal is bad so take it apart and cut a piece of leather out to fit
Coat the leather with Vaseline and it will operate just fine for you
SOURCE: Older Crosman 1377 Air Pistol. Believed to be bad
Yes. This is as simple as replacing O-rings and seal bushings. you may get out for less than $5 worth of supplies. Just be sure to label everything as you take it out of the gun and lay out the parts in the order you removed them. this will make reassembly MUCH less painful. Oh yeah.... remember to clean and oil the parts as you put them back in.
Testimonial: "Very helpful. Will now try to do it. "
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