Can someone explain to me why my Crown is leaking from this hole? New Huma Reg, new poppet, new poppet seal. Im lost. Its just a super small leak, but enough it will drain a 300cc bottle over night.
FX Criwn MK II Leaking
- Thread starter blacksmith304
- Start date
I'ts probably coming from your regulator. You can remove the regulator and replace all the O rings. Don't forget the one in the bottom of the hole in the receiver block.
Upvote 0
There is an o ring inside there. Shine a light inside and you will see. It must be replace. If after replace and still leak than it's the huma reg.
Upvote 0
Actually, I just did a Crown MK II O-Ring replacement today and could not see that 'Hidden' O-Ring deep within the threaded recess. So, I called Utah Air and asked about it.
The tech asked for the serial number and finally said that the serial number indicates that there is no 'Hidden' O-Ring on that particular rifle and that when they send the O-Ring fix-it kit, they send the O-Rings for ALL Crowns, which means that you could possibly end up with an extra O-Ring.
I simply replaced all of the others, except of course that one since it wasn't needed.
Finished the reassembly and no more leaky.
I suppose that it's possible that the HUMA may need an O-Ring in that position, but I was only resealing the original regulator Rings.
Good Luck!
mike
The tech asked for the serial number and finally said that the serial number indicates that there is no 'Hidden' O-Ring on that particular rifle and that when they send the O-Ring fix-it kit, they send the O-Rings for ALL Crowns, which means that you could possibly end up with an extra O-Ring.
I simply replaced all of the others, except of course that one since it wasn't needed.
Finished the reassembly and no more leaky.
I suppose that it's possible that the HUMA may need an O-Ring in that position, but I was only resealing the original regulator Rings.
Good Luck!
mike
Last edited:
Upvote 0
If you already have a Huma, why not rebuild it? Seems like mine came with some spare Orings and Teflon disc. I'd investigate that hard to get to bottom Oring. At first glance it won't look like an Oring at all due to the flatten ID of it.
Upvote 0