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View Full Version : String and Wheel Misaligned?



geronimo
04-15-2008, 04:49 PM
I just noticed today that the string coming off the top wheel on my new 08 Cheetah is not straight but coming off to the right. Should I be concerned?

bfisher
04-15-2008, 06:14 PM
Yes, please be concerned. It should not be this way, but is very common on single cam bows. It can be corrected though.

You will need a bow press to relieve pressure from the limbs. Before doing so notice which way the idler is leaning. Now put sme pressure on one side of the cable yoke that attaches to the top limb to see which one you need to add twists to to align the idler. It may take 5-7 twists of that side of the yoke to get it.

What you are seeing is actually the limb being twisted by the forces imposed by the cable rod/slide. What you are doing by twisting the yoke is countering that force. It's not a perfect fix, but it's the best you can do with a single cam bow for now and the forseeable future.

Once you get it straightened out the bow should shoot better than it was before. If you are experiencing any lean of the cam on the bottom limb then you just have to live with it. The only option you have there is to take the bow to your dealer and see what he'll do or send the bow back to Martin with a letter stating your concern. Call them first.

geronimo
04-15-2008, 06:55 PM
Thanks Bfisher, I'll take it to my shop tomorrow!

cdfirefighter1
04-15-2008, 08:25 PM
you can do it without a bow press.. just back the limb bolts out 1-2 turns at a time evenly till you see daylight through the steel barrel that the limb bolt srews into.. then you can take one side of the cable off and add twists as needed..

bfisher
04-15-2008, 10:03 PM
you can do it without a bow press.. just back the limb bolts out 1-2 turns at a time evenly till you see daylight through the steel barrel that the limb bolt srews into.. then you can take one side of the cable off and add twists as needed..

This is very true, but it's a whole lot quicker if you have access to a press. Getting the right amount of twists usually takes several tries to get it right.

Geronimo, if you don't know how to align the idler here's a tip. Just use an arrow as a straight edge. Hold it against the side of the idler parallel with the string. When you have it aligned well the arrow will maintain the same slight gap between the string and the arrow for the entire length of the arrow. It doesn't have to be perfect, but get it as close as you can.

geronimo
04-16-2008, 02:43 PM
It's done....and the world is "round" again....Thanks everyone!

cdfirefighter1
04-16-2008, 04:40 PM
This is very true, but it's a whole lot quicker if you have access to a press. Getting the right amount of twists usually takes several tries to get it right.

Geronimo, if you don't know how to align the idler here's a tip. Just use an arrow as a straight edge. Hold it against the side of the idler parallel with the string. When you have it aligned well the arrow will maintain the same slight gap between the string and the arrow for the entire length of the arrow. It doesn't have to be perfect, but get it as close as you can.

yup.. yup... it would be alot more conveinent with a press.. there has been a few yimes when I would have liked a press.. if only I could offord one:( and my bow shop is not close at all.. so for now I just back the bolts out..

bfisher
04-16-2008, 06:20 PM
cdf, you have to have heard that there is a thing called a Bowmaster. I have one with the split limb adapters and use it pretty often. Doesn't cost an arm and a leg---about $55 for the set. It works just as well as my bench mounted Apple and I can carry it in my bow case to my archery club. That's where I do most of my tinkering anyway. I haven't used my Apple in probably four years.

Another thing nice about this and some of the other portables is that because they attach to the limb tips there is no way to bend a riser. They are a little slower than a bigger press, but slow means you have less chance to bend or break something.

Think about it. It's one of the more handy tools to have around.

Hope this helps you a little.

Barry

geronimo
04-16-2008, 08:31 PM
yup.. yup... it would be alot more conveinent with a press.. there has been a few yimes when I would have liked a press.. if only I could offord one:( and my bow shop is not close at all.. so for now I just back the bolts out..

Check out this item on Ebay #300216302915. I think this is the kind of press that bfisher is referring to.

cdfirefighter1
04-17-2008, 09:36 AM
cdf, you have to have heard that there is a thing called a Bowmaster. I have one with the split limb adapters and use it pretty often. Doesn't cost an arm and a leg---about $55 for the set. It works just as well as my bench mounted Apple and I can carry it in my bow case to my archery club. That's where I do most of my tinkering anyway. I haven't used my Apple in probably four years.

Another thing nice about this and some of the other portables is that because they attach to the limb tips there is no way to bend a riser. They are a little slower than a bigger press, but slow means you have less chance to bend or break something.

Think about it. It's one of the more handy tools to have around.

Hope this helps you a little.

Barry

thx barry.. I really do need to get a press of some kind... but my mission first is to get nitrous cams on my pantera and have it powdercated.. while im on hte subject barry would you know if the nitrous cams can be PC'ed or should they be dipped instead?? reason IM asking is im not sure how thick the PC is..

bfisher
04-17-2008, 11:48 AM
Honestly I'm not sure which I'd do. Well, yeah I do. Being as I rarely keep a bow more than 1 1/2 years I'd leave them alone. I think you'd be better off to ask whoever is going to so the riser. You might get into some problem with the radius of the string and cable grooves.

And from a practical standpoint I'd get the press first. And as long as you're going Nitrous with the Pantera you need to go one step farther and get Nitrous X. Much better system than the cable guard. Ask Flytier17. He just acquired a Pantera Nitrous X.

flytier17
04-19-2008, 06:43 AM
Ask Flytier17. He just acquired a Pantera Nitrous X.

Yeah, I practically stole it off some sucker who was just too nice, and gave me the deal of the century on it.;)

flytier17
04-19-2008, 06:46 AM
Yes, the Martin X system is fantastic. No limb twist, no cam lean. Very easy to tune. And, i got shown a nifty trick to squeeze one cable to relievethe pressure on one limb to the point where I can time my cams, correct cam lean, and change a set of cables WITH NO PRESS!!!!! How cool is that!