Marauder air tube leak

[Cbourbeau32]

Hello, my marauder has a leak. I have it narrowed down to the air gauge end of things by the "balloon test". I pumped it to 2k and put a balloon all the way over the gauge and taped it off so no air could escape from the balloon. It fairly quickly started to fill with air. How many leak points are there on that end and is there a way to test for each one individually or do I have to trouble shoot them by replacing o-rings, etc.?

 

[Raysfan]

I would suggest some dish soap and a small paint brush. Even a small leak will quickly show itself as a bubble. Start in one area and work around the problem.
Good luck it should be fairly easy to find.

 

[sasquatch]

Ungas, Unscrew the gauge and look at / replace the o-ring?

 

[Airgun-Revisions]

Just strip gun and use new -118 o-rings. There are 4 of them plus a -009 under the gauge fitting.

 

[BanjomanMI76]

Just strip gun and use new -118 o-rings. There are 4 of them plus a -009 under the gauge fitting.

As a new SynRod owner (a local auction buy) I read all these posts with great interest. With respect to the OP, Does anyone have an exploded bueprint where to find all of the replaceable o-rings? How do you do a "balloon test".

 

[Cbourbeau32]

As a new SynRod owner (a local auction buy) I read all these posts with great interest. With respect to the OP, Does anyone have an exploded bueprint where to find all of the replaceable o-rings? How do you do a "balloon test".

The owners manual which can be downloaded online from the Crosman site has schematics. Replacement o-rings can be purchased online. I bought mine from an Ebay seller name "Captain O-ring". The balloon test is accomplished by pulling a balloon over the end that you suspect a leak from and taping around the end so no air escapes. A leak will inflate the balloon.

 

[kayaker]

BanjomanM17 Go to the Crosman Site, they have schematics listed for their guns . The o-rings can be bought from the O-ring store located in Wa. State (OSK Industrial Standard O-ring kit). This kit carries all of the standard o-rings that you will need. Also the O-ring store or McMaster Carr even for individual pieces Lowes, Home Depoe to name a few. Look on you-tube for extra help for tearing down your gun.

 

[BanjomanMI76]

OP and Kayaker, I went to site as recommended. Unsupported File Type from my chromebook, maybe different on the mainframe. TY
Found an exploded view after 10 minutes of searching ... downloaded it and emailed it to myself.

 

[Airgun-Revisions]

Here ya go.