[Clark Gryphyn]

Sounds like too much friction from the bolt-guide o-rings. Either break them in a bit using Brasso, or swap them out for some smaller o-rings. If you put all of the Lurker-provided bolt guide o-rings on your bolt guide, pull them off and try it with stock o-rings. If you can wiggle the bolt too much though, swap on a Lurker bolt guide o-ring at the tip of the bolt guide, and maybe at the base as well.

Myself, I run Lurker bolt-guide o-rings at the tip and base of the bolt and stock in the middle.

[LiL_NguyeN707]

Originally Posted by Clark Gryphyn

Sounds like too much friction from the bolt-guide o-rings. Either break them in a bit using Brasso, or swap them out for some smaller o-rings. If you put all of the Lurker-provided bolt guide o-rings on your bolt guide, pull them off and try it with stock o-rings. If you can wiggle the bolt too much though, swap on a Lurker bolt guide o-ring at the tip of the bolt guide, and maybe at the base as well.

Myself, I run Lurker bolt-guide o-rings at the tip and base of the bolt and stock in the middle.

im running the stock orings on the guide, theyve had over 10 cases on them and are well enough broken in.

i think it may have been the oring/white spacer on the bolt that was messing with me. i took those off and it seemed to be working perfectly fine. still no chrono to fully test tho

[Lurker27]

Those rings can boost the spring rate - that could explain some things.

[Clark Gryphyn]

Didn't think of that. I'm running an older version of the Lurker before those rings were included.

I think a lot of guys who are using the white ring and the bumper are also combining it with a lighter-force spring for this reason.

[LiL_NguyeN707]

well shiiittt.... i didnt know u needed a softer spring for that...

well either way, i think that my problems will b fixed. just needa test it

[lightmaat]

OK - so I can't get this damn spacer on. It goes on well without the O ring, but soon as you throw it on, it just won't slide onto the guide bolt. I've sanded the crap out of the spacer now, and i've scratched my guide bolt twice. Is there something that I am missing? I have tried a few different O rings and well.

Also of note - when I got the bolt kit the spacer actually had leftover aluminum from the mill. Could I have just gotten a bad spacer?

[ThexAlchemist]

Originally Posted by lightmaat

OK - so I can't get this damn spacer on. It goes on well without the O ring, but soon as you throw it on, it just won't slide onto the guide bolt. I've sanded the crap out of the spacer now, and i've scratched my guide bolt twice. Is there something that I am missing? I have tried a few different O rings and well.

Also of note - when I got the bolt kit the spacer actually had leftover aluminum from the mill. Could I have just gotten a bad spacer?

What I did is, I put the spacer on the tip, and the bolt over it. I pushed the bolt down, pushing the spacer all the way onto the guide.

[lightmaat]

Originally Posted by ThexAlchemist

What I did is, I put the spacer on the tip, and the bolt over it. I pushed the bolt down, pushing the spacer all the way onto the guide.

That works great to get it onto the tip, but then it won't clear the first O ring. Looking at the vid - it is suppose to just slide on and lock into place at the back O ring groove

[ThexAlchemist]

Originally Posted by lightmaat

That works great to get it onto the tip, but then it won't clear the first O ring. Looking at the vid - it is suppose to just slide on and lock into place at the back O ring groove

All bolt guides are different, you may just need to force it on a little more.

[LiL_NguyeN707]

Well, after testing it, i had no luck... Still the same thing with or without the spacer. i dont know if it was the bolt, or my gun...

Im just gonna throw the stock bolt back in and run it with that...

I still think the lurker bolt is a great product, just didnt work out well for me this time...

[lightmaat]

Originally Posted by ThexAlchemist

All bolt guides are different, you may just need to force it on a little more.

Short of hitting it with a hammer - I've tried just about everything to force it.

I think I'll wait to hear back from lurker before I take... drastic measures...

[lightmaat]

Looks like putting a tank O ring on it (015) did the trick. I don't think I would use the uethane one though. After I put one of those on it fit perfectly and snapped into place at the back. 10/10 bolt!

[lightmaat]

Now my issue is without booting the PSI above 180-200 I can't get the FPS over 200. I've swapped all the o-rings for rings that are smoother, and there is almost no resistance on the bolt itself or the bolt sliding on the bolt guide. Is there something that I am missing that would cause any sort of drag on the bolt to give it such an abysmal fps?

[Teahouser]

Originally Posted by lightmaat

Now my issue is without booting the PSI above 180-200 I can't get the FPS over 200. I've swapped all the o-rings for rings that are smoother, and there is almost no resistance on the bolt itself or the bolt sliding on the bolt guide. Is there something that I am missing that would cause any sort of drag on the bolt to give it such an abysmal fps?

Use the thicker 012 orings he includes for the inner and outer bolt guide orings that the inside bolt face moves on. Should tighten everything up.