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Main Boards => PowWow => Topic started by: Yolla Bolly on April 28, 2020, 08:26:30 PM

Title: Weight tubes, popped nocks and glue.
Post by: Yolla Bolly on April 28, 2020, 08:26:30 PM
Has anyone had any experience using some type of adhesive to stabilize the plastic weight tubes inside carbon shafts, to reduce the incidence of nock loss?
I recently had to send my current bow back to the bowyer for repair (after 12 years of hard use), so I resurrected an old Kodiak and dug a random bunch of arrows out of of the “archive”. I had installed the 3 grain/inch tubes, way-back-when, and remember frequently watching nocks flying off into the leaf litter, whenever the stump was more solid than I expected. I hypothesized, then, that the tubes were rebounding inside the shafts against the nocks, and abandoned their use.
The old bow shoots the old arrows just fine, but nocks still fly.  I am considering putting some type adhesive around the weight tube before sliding into the shaft to see if it would fix the problem.
Any thoughts or experience?
Title: Re: Weight tubes, popped nocks and glue.
Post by: ozy clint on April 28, 2020, 11:03:02 PM
when i used to use weight tubes i would use pliers to crimp the tube just enough to deform the tube so that it it tight inside the shaft when inserted. i used to crimp it every couple of inches with each crimp being 90 degrees offset to each other.
worked well for me.
Title: Re: Weight tubes, popped nocks and glue.
Post by: Bow man on April 29, 2020, 07:08:11 AM
when i used to use weight tubes i would use pliers to crimp the tube just enough to deform the tube so that it it tight inside the shaft when inserted. i used to crimp it every couple of inches with each crimp being 90 degrees offset to each other.
worked well for me.

done this or similar things works well
Title: Re: Weight tubes, popped nocks and glue.
Post by: TOEJAMMER on April 29, 2020, 10:53:53 AM
The most effective method I have found over the years was using one of those glue sticks meant for gluing paper.  I would apply it to the weight tube as I inserted it in the shaft  It would dry pretty quickly and I never had a nock pop off due to the weight tube moving.  If I wanted to remove the tube I could do it without much effort or damage to the shaft.  The arrows so modified were/are shot out of 60-65 # Widows among others.
Title: Re: Weight tubes, popped nocks and glue.
Post by: Yolla Bolly on April 29, 2020, 10:14:22 PM
Thanks a lot, folks for all the ideas. Can hardly weight to get my “main” bow back.
Title: Re: Weight tubes, popped nocks and glue.
Post by: BigJim on April 30, 2020, 01:19:48 PM
I tried lots of things to keep them in the shafts back in the day. I have since dropped down in weight to the mid 60 lb range and no longer need any type of tube. I have found that I got better flight with arrows that I could put all my weight up front and not use the tubes.
We used to stock them, but I talked everyone out of buying them so I wasn't making any money having them.
BigJim
Title: Re: Weight tubes, popped nocks and glue.
Post by: Yolla Bolly on April 30, 2020, 11:46:22 PM
I did the same, also, Jim. Brass inserts and forward tapered shafts worked better.  So does Doug fir.. :bigsmyl:
Title: Re: Weight tubes, popped nocks and glue.
Post by: Petrichor on May 01, 2020, 12:02:33 AM
Wood arrows. Problem solved. Only joking. Interesting issue and solutions.
Title: Re: Weight tubes, popped nocks and glue.
Post by: lefty4 on May 01, 2020, 03:03:33 PM
I have wrapped Scotch tape around the outside of the weight tube to snug the fit. It only takes a couple wraps. I wrap them every 4-6 inches and especially on the ends of the weight tube. This makes it tight and prevents that annoying rattle. You can pull the tube by screwing a decking wood screw in the end of the weight tube and gently pulling it out.  If you are stumping with these a lot, you will also need some glue on the end of the insert and probably the nock.
Title: Re: Weight tubes, popped nocks and glue.
Post by: Wheels2 on May 03, 2020, 10:13:39 AM
I don't shoot any type of weight tube but do get the nocks to pop out if I hit a real hard stump or tree.
I find that the energy and vibration just run back through the arrow shaft and cause the nock to come out.  Try twisting the nocks.  I would suspect that they turn easily.