Thursday, December 25, 2008

Disassembling the Crosman 707 Rifle, Part 1

Merry Christmas! What better present to myself than some time in the shop? I decided to take apart and reseal the Crosman 707 rifle I recently acquired. You can download a manual and exploded drawing from the Crosman archive. The 707 is the .177 caliber version of the .22 caliber 700, which should be the same mechanically.

I removed the two screws holding the action to the stock.

The action.

The CO2 piercing assembly was unscrewed, and the rear band clamp slid off.

Now what to remove?

Screw 700-10 was removed.

The bolt knob 700-16 was unscrewed.

The tap loading knob was unscrewed and the tap removed.

It appears someone else had visited the gun previously as the spring bushing 700-18 was a bit chewed up and the detent ball was missing.

The bushing was pulled out with pliers.

Screw 700-31 was removed.

At this point the barrel is free and was pulled out.

A somewhat swiss cheese looking breech.

The "bolt" 700-15 and spring then fall out the front as well.

I pushed the valve assembly out the back leaving an empty tube.

More to come...
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4 comments:

  1. AnonymousJanuary 17, 2009 at 9:13 AM

    my valve assembly in my crosman 707 is milled aluminum alloy of some sort. Otherwise yours and mine look exactly the same. Kinda freaky. Mine didn't have split o-rings like yours but i replaced them any way. Sealed up fine with a couple of drops of pellgunoil.

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  2. Edward O. OlsonFebruary 2, 2012 at 7:32 AM

    Warning: when removing the spring bushing 700-18 watch out for the bearing and spring shooting out susch as in my case. I found the spring but am still looking for the bearing. Ed

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  3. UnknownNovember 11, 2018 at 8:20 AM

    I have a Pell Master 707 that is missing a piercing assembly is there any hope for me does anybody reproduce these parts

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  4. crosmanNovember 14, 2019 at 11:24 AM

    Great blog, I have resealed a crosman 700 but have a question
    - on the bolt the end that goes into the valve has a 3 prong nipple on mine
    in your photo of the bolt looks like there might be more to it?

    When I pull the trigger the bolt is released, but it gets stuck in the valve to the point I have to hit it with a rubber mallet to break it free.


    I also had a round screen and a black filter inside the valve can I still get replacements?
    and how important are they?

    ReplyDelete