I’m having a lot of pain putting the flange in position in a 4’’ alu tube. The difference between the flange and the tube seems not to be enough to put the o-ring in place. I’ve actually damaged the first o-ring by trying to put the flange in position. The o-ring has been cut because of the lack of space between flange and tube. Tube was empty and no endcap on it. Unable to push the flange with 40/45kg of pressure, which is incredibly too much. Either the tube diameter is too small, the flange is to big or o-rings aren’t compressible enough. There was grease everywhere, even inside the tube…
Is there any solution (I can’t see one) or I have to ship back everythink?
Flange diameter: 100.52mm
Flange with o-ring diameter: 102.40mm
Tube inner diameter: 100.58mm