Airsoft Canada - View Single Post - Tippmann M4 Leaking

shreddybear · May 6th, 2015, 21:32

Thanks for posting! Yeah, I know CO2 isn't the popular choice here. Love the thing aside from the leak.

I think it's the Input Fitting losing it's seal (sits on the internal gas line). I actually got two mags off today with no leak, and this was after inspecting the inside of the Input Fitting again and finding small plastic/metal shavings between the oring and metal wall (inside of the fitting). Seems as if it's not staying secure after a few shots. Shooting fast also causes the leak to come back faster. Maybe something to do with cool down shrinking the oring or the dropped pressure.

I think there must be some shaved or cracked metal on the fitting which would explain why the seal isn't as good as it could be despite the good oring. Oring is lubed and looks good at the base of the fitting, but it's also a bit loose fitting on the brass gas line of the puncture valve.

Hopefully I can get a new one and this will be the end of the problem.

Anyway, thanks everyone for posting. Main reason I'm still posting this is for anyone else who might experience a similar issue. Might as well be a problem with your Input Fitting if you do!

...Then again, maybe not. When it's all resolved I'll post back.

Thanks again!

May 6th, 2015, 21:32	#10
shreddybear Trader rating Join Date: Apr 2015 Location: Canada	For sure Thanks for posting! Yeah, I know CO2 isn't the popular choice here. Love the thing aside from the leak. I think it's the Input Fitting losing it's seal (sits on the internal gas line). I actually got two mags off today with no leak, and this was after inspecting the inside of the Input Fitting again and finding small plastic/metal shavings between the oring and metal wall (inside of the fitting). Seems as if it's not staying secure after a few shots. Shooting fast also causes the leak to come back faster. Maybe something to do with cool down shrinking the oring or the dropped pressure. I think there must be some shaved or cracked metal on the fitting which would explain why the seal isn't as good as it could be despite the good oring. Oring is lubed and looks good at the base of the fitting, but it's also a bit loose fitting on the brass gas line of the puncture valve. Hopefully I can get a new one and this will be the end of the problem. Anyway, thanks everyone for posting. Main reason I'm still posting this is for anyone else who might experience a similar issue. Might as well be a problem with your Input Fitting if you do! ...Then again, maybe not. When it's all resolved I'll post back. Thanks again!