Originally Posted by learningxp
Dang...I have he old noid. Still works fine tho. Are the power tube orings supposed to be tight in the bolt? I noticed a had fsdo when I put the hand fit orings on. So I tried moving the bolt through every part of the engine to check for tight spots and the power tube was definitely tight. I believe that was causing my fsdo, I switch the tip to an xring and it feels looser. The mid pt oring is still a poly/vit still pretty tight tho.
Poly/Viton o-rings are a little more snug than regular bunas typically. Just be patient with the poly/viton o-rings and allow them to break in. I've had polys on my powertube for quite a while now, and they took about 8-10 cases to "really" break in. The FSDO will continue to get less and less as you break them in and once they are fully broken in they work absolutely fantastic.