Why Do limb Bolts Back out?

[MLN1963]

I have noticed on my bow that the limb bolts back out an 1/8 to a 1/4 turn in as little as 20 shots. I have never let them go any further so I don't know just how far they would go. I have the bolts backed off 5 turns to condition my muscles to shooting and wonder if this has something to do with it?

[martinbowhunter]

I think five turn's is to much to have them backed out. I'm purty sure your not supposed to back them out more than 4 turn's if your still planning on shooting them. What limb's do you have 45-60- 55-70? Also, do you know what poundage your shooting at the moment?

[cjchasman]

I have noticed on my bow that the limb bolts back out an 1/8 to a 1/4 turn in as little as 20 shots. I have never let them go any further so I don't know just how far they would go. I have the bolts backed off 5 turns to condition my muscles to shooting and wonder if this has something to do with it?

Have you checked the gap between the limb and riser w/ a feeler gauge. I was wondering if it is all limb bolt movement or is the facing washer rotating also with the rotor cup limb support in close proximity could you be getting a teeter-totter effect??? (due to the 5 turn back off)...I'm no pro but was just wondering. That type of vibration might back out the bolt.

[martinbowhunter]

I'm thinking you should go one full turn in on the limb bolt's minimum. I'f you will be able to pull it back. Try it out. I think this will solve your problem. And yes, check to make sure it's not just the washer, as the poster above me mentioned. So put a mark on the lims also. Do you have a bow scale?

[Hutch~n~Son Archery]

I don't believe the limb bolts are backing out. I believe the outer washer is spinning. Do to the same reasons mentioned above. The limb bolts can be out 5 turns but it would be better for them to be out only 4 turns, putting more pressure on the bolt and limb washer.

Hutch

[MLN1963]

I have had it at 4 turns out and it did it there too. I will mark the washer to limb and see what that shows. The washer doesn't turn when rotating the bolt but who knows?

The limbs are 45-60#

[Hutch~n~Son Archery]

I have had it at 4 turns out and it did it there too. I will mark the washer to limb and see what that shows. The washer doesn't turn when rotating the bolt but who knows?

The limbs are 45-60#

Line up the white dots then put a piece of scotch tape over both the washer and limb bolt. Then shoot for awhile. Then you will see if it is the washer.

Hutch

[Ehunter]

I think the guys are on the right track. One thing I do, after my bolts are set where I want them, I always put a mark on the bolt head in line with the split in the limbs. Basically, bottom dead center on the top bolt, top dead center on the bottom bolt. That way, I always have a mark regardless of what happens to the washers, etc.