Benjamin marauder 22

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apslatton

apslatton

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Sep 23, 2024
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was dialing in a used .22 ben marauder and after about the 3rd shot air started leaking from inside the breach. guessing its that little o-ring just inside the breach? when bolt is closed it leaks out the barrel. put finger over barrel and its coming from the breach...gotta be that little seal right?
 
Same happened to Airacuda Max. Broken poppet. WM
IMG_20240226_144632.jpg
 
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3Crows said:
You will have to degas and pull the gun down to change the poppet. Might as well put in all new seals. The entire valve assembly is pretty cheap though changing a poppet is nothing at all.
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Yea i watched a video earlier. Got the valve ordered and we have 2 whole cases of different size orings (my buddy is a mechanic) so I hope it's of the same ones. I think shipping and taxes cost more than the valve 😅
 
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apslatton said:
Yea i watched a video earlier. Got the valve ordered and we have 2 whole cases of different size orings (my buddy is a mechanic) so I hope it's of the same ones. I think shipping and taxes cost more than the valve 😅
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The M-Rod is about as easy as it gets. The gage cutout has a burr on the inside, it will cut the new O-ring seal on the valve and gage manifold if not careful. Best to deburr the inside with a hook deburring tool. Push the components from rear to front to remove and installing back in reverse. I use a piece of 1/2 inch PVC Schedule 40 pipe as a pusher.
 
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apslatton said:
That'll cover most all of em from ben, fx, hatsan etc then? About to order some for sure.
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Those are Benjamin M-Rod part numbers from your owner manual cross referenced to standard O-ring numbers. I have no idea about FX or Hatsan.

You can also get Marauder specific kits all made up cheaply on eBay.

Marauder (.25) PL:



Marauder (.25) Exploded Diagram:



Should all be in the OM which if you do not have it can be downloaded from Crosman. I only have the .25 specific info because I have no interest in the .22 or .177 ;). Most of the parts are the same save for a few caliber specific items.
 
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apslatton said:
Oh I don't have a manual but I got ya. I'm looking something with a wide range kit like this so maybe it would have a lot of the ones if I need on other guns 🤷‍♂🤔 I have sets similar to this but they were for sure not the right sizing/thickness 😅
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VITON is the WRONG material .... you want BUNA and @ 70 duro hardness
 
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