Dye DFF-20 Lazarus Valve

[latches109]

I've had issues with few of Dye's orings out of box. Two 3ways and one LPR that needed new orings and lubrication. One 3 way arrived without the barbs installed. Lack of quality control there. No issues with the valves yet, but I did lubricate them.

[Roger7pball]

I was battling small leaks in most of my markers with the Lazarus. I did the following to all of them and have zero leaks now. Might help someone down the road.

009 70 in place of the u-cup seal (Jason Antle’s recommendation)
015 x-rings in place of the body orings
Added a little dow 33 as some came dry
Drop of 243 medium locker on the cap and the set screw (nothing to do with the leaks)

[skully/a5]

Im not sure what you're talking about. I said it's working. the only thing that doesn't work in Angry's kit is the smaller spring. it doesn't create enough force to open the valve long enough unless the IVG is buried but was only able to get to 260. Angrys delrin hammer along with resi stock IVG spring and laz valve is shooting awesome.

[superman]

This is pretty confusing because the valve does work with resurrections. It sounds like you have something else going on.
Paint bore matched? orings on the bolt fit properly? timed correctly? regulator assembled correctly?
The ressy stock reg has large jumps in pressure with adjustment. I would be willing to bet that if you turn 1/8 turns outward that you will still be able to get it to shoot correctly.

[skully/a5]

Just chiming in on the hype train lol. I own a resi and installed the laz valve. Picked up the Jenny Craig hammer and spring and valve set screw from Angry and was having submarine effect like crazy. This was after finding out my reg severely needed a rebuild lol. Well, we set the guns HPR to 200 and IVG buried and got to 260. Knew we were close. Gave up after getting it out of whack messing with it and just grabbed one of the other guns I brought with me and played the rest of the day. Got home and put the stock resi IVG spring in and I’m shooting 300 with the IVG 1 full turn in and HPR one full turn out from bottomed out, as in reducing pressure or in all the way, not sure how to word it. I need to build a reg tester so I can tune better from actual pressures not just assumptions. I talked to angry and im a little upset with him. He did not educate me before my purchase that his kit did not work with the resi even though I told him I was looking for his kit for the resi. What Evs, I moved on but need that info out there for other people to know. Basically, if you have a resi get the laz valve, angry’s Jenny hammer and go have fun. There’s a lot less forward-slamming kick. Smoother action. Hope to get out again to really play with it more.

[BrickHaus]

Thing is, the break force on the pin for the lazarus is so low, I wouldnt figure it would deform the plastic. But this is my anecdotal guess from manually opening the valve with my finger. I have a lazarus, and a JC in baggies.

I ponder back to the incredible wear properties of the tippmann cyclone ratchet.

[superman]

Nice!!!

[Killshot_Kustoms]

Decided my MT A4 angel needed a Lazarus valve too. Made a new valve body out of SS. Going to hopefully get some testing in next weekend. I have a light weight hammer to try out with it.

[tyronejk]

A plastic hammer with a steel core/face sounds like a good way to make a lightweight hammer.

But I have trouble understanding the benefit to using a lightweight hammer. Doesn't that usually require an increase in spring stiffness?

I guess my underlying question is: how do you determine the hammer specs needed to slam open a poppet valve? Is it a set amount of energy? Or momentum?

[Chuck E Ducky]

The one Caveman put in his is already deforming there is no way it’s going to hold up long term. I’m curious what that one on YouTube looks like after 20+BPS on that Ecocker. He’s going to do some more testing and tuning with it but he had some problems in the cold. It’s already showing significant deformation ware the valve pin makes contact with the hammer. I suggested drilling it out a bit and epoxy in a Ring shank nail into the contact points if it gets to bad. It would only add a lil weight and make it more durable.

[The Inflicted]

What light weight hammer options are available for these valves without going plastic?

What's wrong with plastic?
Has anyone ever made autococker hammers out of HDPE?

[Chuck E Ducky]

What light weight hammer options are available for these valves without going plastic?

[Chuck E Ducky]

Oh that’s cool idea never thought of trying one in an SS-25.

[Roger7pball]

I thought maybe I had 1 too many of my wife’s gummies last night, but installed 3 Lazarus valves in Vikings and observed ~60 fps gain on each with no other changes. Another individual on the AKA fb page saw similar gains. Insane to me. No comment on efficiency until I get to a field this spring.

Gloss silver Viking +63 fps
Dust silver Viking +60 fps
Valhalla Viking +59 fps

[Roger7pball]

Hooptie, they came with some CCM valves I have. Hard to find grub screws, not even McMaster has them.

@latches, yeah I can see what you’re saying. I have a reg recharge logger at 1,000hz and can mess around with it.

@flyweight, I had a related thought. Vikings are known for excellent efficiency for various reasons. I’ve noticed the valve spring is especially heavy in them. Potentially making sure the poppet valve closes very quickly reduces the amount of wasted air.