Originally Posted by
Ozmodeller
I used a heat gun to soften the tube slightly and pushed a metal scribe down the tube to enlarge it slightly and pushed it onto the nipple, works well and after lock wiring its not going anywhere.
Peter
I concur with Peter; warm the tubing up with the heat gun, stick a scribe/punch/whatever you call it in far enough to widen the tip of the tubing a bit and then it should fit over the barb. Helps to put a drop of oil on the filter barb.
Regards,
Gus