Dye Lazarus Valve & Leak

[nicmauro]

So, I put one of these in my Empire Resurrection but since I pulled it out of a different gun I am unsure if it came with a specific retaining screw. I just used the stock resurrection one with the o-ring and it seemed to work fine, sealed up the first time. However I have since seemed to spring random leaks down the barrel when airing up. Like I played with it a full.day last week and no major issues but when I went to clean it up, leak city.and yes, it was cocked 😂

I tore it down and couldn't find anything wrong but thought maybe the valve screw was too tight so put it in with a lighter touch. I gassed it back up and it was fine. I went to shoot it a day later and I had a smaller but significant leak that sealed up with a couple of shots which sounds like maybe an iffy cup seal (I think it's an o-ring on these, right?) but I tore the valve down and inspected/changed anything I could. This may have been just low pressure and needing to get seated but the overall issue has happened a few times.

Any thoughts? Something else to check with the valve in general? I have been trying to make this gun my daily driver but between reg issues and now this I'm a little hesitant.

Thanks!

[Jordan]

I've got the same problem... so far I've changed out the u-cup seal for a 009 oring, and that seemed to make it a lot better.

I still get intermittent barrel leaks that go away after cycling 20 or 30 shots through the market... I've just changed the valve orings (maybe i nicked one going back together?) and I changed out the valve setscrew, but I'm out of air so I can't test anything at the moment.

Hopefully people with more Laz experience will chime in.

[nicmauro]

Well, sorry to hear it but also glad it's not just me being crazy 😂

[Cdn_Cuda]

My Lazarus valve in my Sniper had also been problematic. Thought I had it tuned nicely and set up at home, chrono’d well and no leaks. Pulled it out at the field and it was completely unusable. Two three shots were good, then massive drop off. In the end the balls were only going a few feet. Diving into this is on my list of things to do.

And for reference I’m running a BM reg as my stock reg blew up the last time I tried to use it. Maybe my Sniper is just cursed?!

[nicmauro]

That has basically been my experience... all set up and ready to play and when I flip the air on to walk out on the field it shots the bed 😂

I really want to like the gun for the price point, weight, style, etc but I was reading a thread on FB and messaging with someone who seemed to have some deep knowledge of the original development and said there were some internally known issues that they basically refused to fix. Honestly, I don't remember what they were specifically but I may go try to hunt it down. I don't want my primary shooter to be unreliable!

[RAZRBAKK]

Interesting... It seems like these valves are really hit or miss. A shame, they shoot so nice when they work.

I had mine in a trilogy originally and just could not manage to keep the velocity consistent. In my Meteor it's been rock solid.

[nicmauro]

Yeah, and honestly, it's a little embarrassing to walk out on the field and it sounds like your gun has split in half 😂

[Psycho91]

I have my fingers crossed I dont have problems with mine, I'm putting one into a trilogy as well I plan on just using the stock hammer and an inception spring kit

[nicmauro]

I followed the prevailing advice and got a Jenni Kraig delrin hammer. That part seems good, I have it sweet spotted with the lightest spring and the IVG just barely in. That said, I never tried it with the stock so not totally sure if I would have had any issues or noticeable gain but it's def lighter

[docfire]

Simple fix put a PHAT Rat in its place.
lol

[nicmauro]

It's funny you post because I had set it aside for a bit to finish off some other slightly less frustrating projects and just picked it up again last night. Rebuilt it all and still won't seal up consistently at any pressure from 100 to 400. I think I just might take that advice 👍

[docfire]

https://docfirepaintball.com/collections/autococker-parts/products/st-phat-rat-valve-11-16

[latches109]

Did you tighten the blue cap with tools?

[nicmauro]

I am AFG at the moment... Where are you suggesting the 009 oring go? And thanks!

[latches109]

nicmauro it goes on the valve stem replacing the u-cup oring on the valve spring side.

[nicmauro]

Ok, done but no air left to test. I am playing tomorrow and will report back. I assume the theory is that the leak is actually air passing through the passage in the stem, not around the valve face? Thanks!

[Psycho91]

The more this thread keeps going the more I'm thinking about just selling my laz valve and going with the palmers LT i have sitting around, laz valve just seems like a big headache for some at this point

[Jordan]

The more this thread keeps going the more I'm thinking about just selling my laz valve and going with the palmers LT i have sitting around, laz valve just seems like a big headache for some at this point

Have you used the Laz valve yet? There's only a handful of us with issues, compared to all the successful installs out there.

I'm very happy with mine other than the intermittent leak issue, which I think I've got fixed.

[tyronejk]

Yup, I like mine too. I'll buy yours if you're gonna sell though (I could use another for a Promaster project).

[Jordan]

Just as an update on my valve... replaced the outer 015 seals with buna, replaced the ucup seal with a 009, used the proper valve retainer (modded Trilly screw instead of unmodded setscrew) and tightened the shizzle out of the valve halves as per Latches109's recommendation.

No leaks - aired it up tonight after I got home from the field. Tweaked my timing a bit (I changed out the sear) and it's humming right along.

I'll air it up again tomorrow or in a few days to verify but I'm pretty sure it's fixed.

Edit 1: aired up, tiny leak. Cycled once, went away... subsequent air-ups were leak free. Leak might have been pneumatics related, not valve. Will continue to check.

Edit 2: I've still been getting intermittent barrel leaks that would go away after cycling, and it's been driving me nuts. Took the valve out to inspect it again and discovered a tiny nick in the seat area of the valve body.... lapped it out with a honing stone, replaced the "cupseal" oring since I was there (and it was the last one I hadn't changed). No more leaks. Time will tell if it's fixed... pretty sure it is, though.

[nicmauro]

Haha, you beat me too it but yeah, latches109 saved me today. I just replaced that stem ucup with the 09, plenty of lube, plenty tight and zero issues. I am still using the stock retaining screw. Thanks to all!

[Frmrspec]

If you have issues with the Laz valve in a resurrection, one thing to keep in mind is the resurrection lower tube is a larger diameter than standard traditional 11/16”… iirc it is +.695, I’ve had to run 14x2 metric orings on the OD of some valves to get it to seal reliably (or 015-90)..