Jump to content

Zci Cylinders for an ak105 rebuild.

Recommended Posts

Figured my old topic might be too old to bump back up.

Some background:  Putting in 16:1 shs gears I had left over from last tinkering, replacing an asg yellow rating spring for a zci m95 (attempting to lower enough to be able to clear buildings with/reduce strain).  ZCI high torque motor (28 tpa iirc), aoe corrected with sorbo and shs blue 14 teeth piston.  Shimming will probably be a mess no matter how I try.

Anyways, after finally getting a shs air nozzle that will hold a seal (I suspect the zci one I had earlier lost its o ring or something), I am now at a crossroads.  I have two zci cylinders on my work pile, a full type 0 cylinder that was in the gearbox previously (logic being it would help with .28s and whatnot, especially after aoe correction), and a type 2 that just arrived with the air nozzle, that is different from the stock type 2 cylinder in that instead of 2 ports it has 4 thinner ones.  I also have a SHS cylinder head brand new that I believe has a longer nozzle section.

My questions are:

  • Whether I should go ahead with the new type 2 and if so how should the ports be angled?
  • Out of the two ZCI nylon piston heads types I have, is it okay to use the lighter nylon piston head or stick to the regular nylon one that has metal bearing ring in its metal nut base.
  • Would the SHS cylinder head with either piston be a better option with the longer nozzle.

I just tested seal with the zci type 2 cylinder with matching cylinder head and the shs air nozzle and got a decent seal (afaik about this stuff).  Just looking for suggestions before I finally get this thing rebuilt and off my table so I have space for my hands when gaming.


Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


Important Information

By using this site, you agree to our Terms of Use and the use of session cookies.