String Pops off Cam - Why?

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10-25-2007, 03:48 PM

#11

shott8283

Fork Horn

Join Date: Sep 2007

Location: Western, NY

Posts: 167

RE: String Pops off Cam - Why?

i wonder if your limbs are weekening and making the cams do this.. especially since you checked the axles and bearings...when i put my laser checker on my relfex (hoyt)onthe sight mount and tracked a laser from nock to cams (top and bottom) the laser would eventually point at the wall,, being way off .. a week later one of my limbs had a narly crack in it.. dealer cant figure out why it was doing this.. never dryfired .. who knows.. maybe itll be better when my limbs are in and replaced..

10-25-2007, 09:01 PM

#12

BGfisher

Nontypical Buck

Join Date: Feb 2003

Location: Middletown PA United States

Posts: 3,625

RE: String Pops off Cam - Why?

Quote:

ORIGINAL: nethunter

Quote:

and the string would jump off about every 2 or 3 shots.

Ouch! The cams don't appear to flatten, BTW, and they didn't do this for hundreds of shots in the past.

Quote:

Does it have floating "Y" yokes or static yokes? If they float then changing them end for end isn't going to help any.

These are 'upgrades' - cables run straight thru the Y to the ends, as opposed to having a sliding thingy at the Y. Would that be static?

Just pulled the other cam. Axle is straight, no significant slop in the cam sleeve, but again some slop in the limb holes.

To derail the thread here, found a webcam with the ranch I built in view. The fire swept thru there twice, and there is a huge mushroom cloud in view. Everything is burned all around the ranches at the bottom of the canyon, but they appear to be untouched. God Bless those volunteer firemen and others who came to help!

Yep, this is what we call a static yoke. What we do to straighten out the top wheel (cam or idler) is twist up the side needed to straighten the wheel. You can use an arrow as a straight edge along side the cam to check for alignment. Laid along side the cam it should parallel the string.

NOW here's where things get dicey. If you are shooting a cam+1/2 or single cam you don't have a static yoke attached to the bottom limb so if there is any lean you can't do anything about it.

For what it's worth the cams probably aren't leaning. The limb tips are being twisted out of shape by the side torque created by the cable guard. It's quite common with this antiquated technology.