Recurve noise increses after sanding nocks

maineac · January 21, 2010, 09:42:00 AM

So the topic title explains what happened. I was getting less than satisfactory groups, so I thinned the nocks which seemed tight. My groups tightened up immediately, but my recurve limbs started to make a LOUD vibration (though I am not sure why). I am looking at some suggestions to quiet it back down.

Do you think I need to move my cat whiskers, I already have wool wrapping where the limb and sting meet. I could go with some limbsavers, but would like to hold off on that as a last option.

getstonedprimitivebowhunt · January 21, 2010, 10:03:00 AM

You might try putting a little bees wax on the nocking area of string. Helps grip arrow nock but not to tight. Just a thought!

January 21, 2010, 10:06:00 AM

The energy from you is transmitted to the arrow by the limbs through the string. It's a beautiful, simple thing. It makes sense to me that if there is some wiggle room between the nock and the string that the energy transfer would be less than perfect, thus the vibration in the limbs. The nocks are TOO loose.

BowHuntingFool · January 21, 2010, 10:14:00 AM

You might be better off either switching nocks or getting the right size serving on your string instead of sanding your current nocks. I liked a little thicker serving, on my carbons I went with the nock inserts and classic index nocks that fit just perfect, made a big difference in noise, arrow flight and accuracy!

FerretWYO · January 21, 2010, 11:35:00 AM

QuoteOriginally posted by BowHuntingFool:
You might be better off either switching nocks or getting the right size serving on your string instead of sanding your current nocks. I liked a little thicker serving, on my carbons I went with the nock inserts and classic index nocks that fit just perfect, made a big difference in noise, arrow flight and accuracy!

I would try a little thicker serving as well. For me if my knocks are snug they will be just fine if they are tight it will not work. I have sanded them out before as well. Sounds like maybe you got just a little to much out?

Zradix · January 21, 2010, 12:37:00 PM

I sanded my nocks a bit much once. Got a click sound I could hear but no one else could. After scratching my head awhile I found that the "washer" on my spacer that keeps it in my tab was pushing the nock 1/3 to 1/2 way off the string. It was slapping the nock!

AkDan · January 21, 2010, 12:41:00 PM

basically by making the arrow come off easier it's not hanging on the string as long (or in your case being to tight it was staying on the string too long) which in turn is going to take out some of the vibrations a normal fit would give you. Moving your silencers wont help enough. Too loose of a nock shouldnt make your bow much more noisey then a nock that fits right...to tight of a nock will in fact quite it up quite a bit, however effecting speed and accuracy in the process.

I hate to even say this without more experimenting on my part, but after going to a skinny string I'm still amazed at how quiet my bow became....something I'd consider (with padded loops of course).

I was never into padding the string grooves but it might be worth a try. The closer to the center of the string you move those silencers the more effect you'll see from them, but it becomes a weight game..if they are too light they wont help hardly at all to heavy and you'll start loosing speed. Find the 1/4 mark on the string (or 1/3), and try your silences there...measure the string as it comes off the string grooves not total length. If thats not enough I'd seriously consider the skinny string, I know I wont go back just for the sake of the lack of noise!

bshunter · January 21, 2010, 03:28:00 PM

too loose, I've done it myself, don't worry, just build up your string with dental floss.

Terry Green · January 21, 2010, 03:45:00 PM

Don't know what to tell ya...never had that happen....always make my shot smoother and quieter. I sand all my nock for a custom fit.

bornagainbowhunter · January 21, 2010, 04:54:00 PM

I sand mine too, never had a noise come from it. Just for experimental sake, try a lighter point, then a heavier one and see if the noise came from the arrow. When the arrow has a cleaner release it could "act" like it has a slightly weaker spine. the actual travel of the arrow while on your string will not be effected, but a tight knock will "hold" the arrow for a split second. When the arrow has a clean release, the string cannot align it sith your rest, leaving the possibiliy that the knock could come into contact with your shelf or sideplates. Just a thought.
John

maineac · January 21, 2010, 05:05:00 PM

The nock still holds the arrow on the string when hanging straight down. I need to put pressure on the back of the nock to get it off the string, though not as much as I did before. The arrows are the grizzly stick woodies and are a heavy arrow, 780 grains. I'll try some wax on the serving, I like the better flight and consistency in my shooting, but need to bring the noise back down. the limbs are what are making the noise for sure, almost a hum of vibration. My 55# limbs were quite from day one, no matter the arrow weight or nock. The 65# limbs were louder , but I was able to get them quieter until this last change.

reddogge · January 21, 2010, 07:25:00 PM

As a test replace a nock with another brand to see if it really is the nock.