steverebo
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Posts posted by steverebo
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17 minutes ago, ak2m4 said:
What happens when you just drop a BB down through the barrel, does it drop freely? Any obstructions?
Yep seems to drop down fine this only happens at random did it with both maple leaf and zci, it happened faster on the maple leaf but I really spammed semi auto got some random dry shots and then this
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Ok update tried with zci hop rubber and get jams as well maybe there is something else going on. This is what I was met with 😕
One question, can precocking have any impact on things like this as my perun has a small amount of precocking enabled
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6 minutes ago, ak2m4 said:
@steverebo hmmmm try the original hop chamber instead of the ZCI rotary, and try the ZCI rubber as well in both as well. If you have a ML inner barrel to hand it's worth also trying that. Can always post one out to you tomorrow (should arrive by Friday) as long as I get it off in the early post.
I'm on my way home now so will try all the above when I get in and if I have no luck I will put an order in for the maple leaf barrel. Will have to grab a 310mm as you don't have any 290mm left but I can't imagine the extra 16mm will make much difference in my fps and the excess will be hidden inside my mock suppressor anyway
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13 minutes ago, ak2m4 said:
As others have said, do the drop test, check for burrs etc, if there is an issue drop it back to me and I can test / replace, it's no bother. Maple Leaf rubbers design is quite a bit different from the old / standard one, longer lips 1.8mm and a much wider aperture - can cause all sorts of problems. If you have an old standard bucking laying around try that.
It's a SA Edge, with the blue rotary chamber right?
Yep so in pursuit of getting this solved I have:
swapped for zci plastic hop chamber
Replaced the piston head to a rocket double oring
Replaced the nozzle to a rocket double oring and sanded a tiny tiny amount off the top to match the original nozzle height.
Tried the MR Hop rubber and standard maple leaf 60
Still had the same issue with inconsistent dry firing and eventually a jam.
I have now ordered a new Chinese tappet spring zci tapped plate and a shorter zci nozzle to see if swapping these helps
I spend £90 on the mags and when I explained the issue the return was rejected based on them staying it was my gun not the mags with the issue so I've got £90 of useless mags unless I identify the problem
I do have a couple of the zci hop rubbers that you supplied with the barrel and the hop chamber so when I get home I will get one of these installed I see how it goes.
I will also fill the mags as much as physically possible and leave them till Saturday when my next game is and see of that helps
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45 minutes ago, concretesnail said:
If its from ak2m4 then its worth asking.
I'd still look at the mag spring for the mags which have an issue as you already said all the other midcaps feed and fire fine and that uts just the 200rnd ones that don't.
I seem to recall people that have the large midcap pts mags having similar issues, just too much pressure.
I know I have zci barrels and maple leaf rubbers in nearly all my rifs and use nothing but mid and low cap mags.
So cutting some coils on the mag springs helps?
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36 minutes ago, Rogerborg said:
When BBs do shoot, how's the hop on them? I'm wondering if they're just not making it past the hop rubber - and I have read the thread, and am looking at the barrel as the culprit.
If it's a feeding problem, I've had some luck with hand-drilling a very slight detent into the top of the hop chamber. 6mm drill bit straight up the feed tube, a couple of turns by hand, just enough to create a tiny dome at the top of the chamber for the BBs to seat into. It might be a ritual observance, but it did sort a feed problem on my MP5K with a less than brilliant hop chamber.
Yeah I grabbed it from ak2m4 I think I've been his no.1 customer over the past months spent about £200 on barrel gearbox parts ect.
He is the only one with the maple leaf barrel in stock at 310mm if I grab one today maybe I can get it by Friday fingers crossed.
I have done a bit more research and some people are only able to use the ZCI hop rubber with zci barrels without issue and I'm using a maple leaf 60 o do have a few zci hop rubbers floating around at home that came with my zci hop chamber and barrel so nay give them a go it might just be the hop rubber giving me issues
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1 hour ago, Iceni said:
Whoa guys!
The gun is feeding fine on one barrel with the same feed nozzle and hop unit. It's only the barrel change that's causing the issue. Feed nozzles only go into the hop and touch the barrel. Therefore the issue isn't feed nozzle, tappet spring, Midcap syndrome, or hop unit.
The issue can only be the barrel. So it's either got an issue like a crushed feed, Or more likely a burr or there's a little too much material on the feed side of the barrel and it's allowing the BB to lock up once it enters the lips but before it enters the barrel. Hence Chamfer it first and rule that out! It is probably that the failing mid caps have a little more upwards pressure, and it's allowing the BB to enter the barrel by rolling on the top of the feed... That position is the one that needs the attention.
I have noticed that when it jams there are 2 bb's trapped and they don't move at all no matter how many times I fire
I might just grab a new maple leaf barrel but the 290mm is out of stock everywhere so may have to grab the 310mm and have an extra 16mm sticking out
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1 hour ago, concretesnail said:
Unless the barrel is sitting too far back into the hop unit I doubt the barrel is the issue, if it were then all of the mags would feed poorly.
As Asomodai mentioned its likely midcap syndrome and nozzle combination.
It's definitely only the high capacity mid caps that I have that are having feeding problems.
How do I fix mid cap syndrome?
Would a shorter nozzle new tappet spring and new tappet plate help?
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I am using a rocket 21.4mm nozzle would grabbing 21 3mm nozzle help fix this qnd maybe a new tappet plate and spring?
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Yep, only happens with my lonex mags i get dry firing and eventually a jam, they are higher capacity 200 round midcaps whereas my other mags are 140 round or high caps they all work flawlessly but when I put my stock barrel in my linex mags feed fine
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So my ZCI barrel is having issues with my lonex 200 round pmags it's misfeeding a getting blocked I've tried prometheus bucking malle leaf macrom a MR HOP with the same result.
I want to use my lonex mags so will have to grab a new barrel, the maple leaf 290mm is out of stock everywhere so I was looking at the mad bull black python v2 us this any good? If not could someone recommend an alternative
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Wicked cheers guys
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1 hour ago, Lozart said:
As long as they're not being crushed, scuffed or otherwise damaged getting the battery in and out then yes, it'll be fine.
That's awesome thank you, also is it normal for the battery to get warm under use?
I don't mean burning hot or anything but just noticeably warmer to the touch after spamming semi and some burst fire
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So I'm going for a magpul style stock so my batteries now have ti fit in the buffer tube. I have an 11.1v lipo nuprol nunchuck style with the 3 separate cells. I can fit it in the buffer tube its not too tight they fit in but they are all touching each other and the buffer tube on all sides.
Is this safe?
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4 hours ago, Rogerborg said:
Hmm. There are no dimensions specified, so I wouldn't bet on them fitting in a buffer tube. I've yet to find a 3 cell / 11.1V pack that will.
Other that that, they don't seem completely unreasonable. The mass, capacity and C rating are all plausible, and the price is fair enough, if they actually meet those specs.
I'm tempted to buy some for a G36C and solid-stock M4. But inside a buffer tube? Nah, I doubt it.
I have managed to fit my nuprol 3 cell nunchuck 11.1v 30c lipo's in the buffer tube of my m4 my mofset is a perun v2 so I only have the 2 battery wires to contend with. I might give these a go and report back
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I found these lipo batteries on ebay the specs are exactly what I am after and they look like they will fit in the buffer tube if my m4. Has anyone tried them and do you think they are woth a shot?
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So I took some advice after having double and triple shot semi issues and short stroked my 13:1 gears removing 2 teeth, I did not touch my piston as it is a 14 tooth piston so didn't think it was needed. I've invested in a perun v2 which is on its way will the short stroked gears cause issues with my perun?
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8 minutes ago, Alimcd said:
Have you enabled AB on the gate? It’s off as default from memory
Yep all activated qnd watching the piston it's all over the place sometimes it's back sometimes mid way I thought active breaking stopped this
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So I decided to go from 16:1 to 13:1 all went well got it shimmed nicely but I now have issues where my gun is double triple and going burst in semi and if I depress the trigger really slowly it will full auto in semi when the trigger is still depressed. I have had a look at my cut off lever and it looked OK I'm really confused by what's happening. My gearbox loadout is:
Zci 13:1 advanced gears
Zci high torque motor
Rocket 14 tooth piston
Rocket piston head
Rocket nozzle
Gate nano hard mofset
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So I'm having issues with my sa-07 edge and lonex 200 round pmag mid caps. I randomly get nothincoming out if the barrel. I have looked into the hop hamber and I can see a small lip from my maple leaf hop rubber. I have heard of potential issues with zci barrels and maple leaf rubbers but the drop test seemed fine.
Do I need to trim away this tiny lip?
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5 hours ago, ak2m4 said:
@steverebo you're a superstar, thanks. Hopefully the chamber will work out well for you. I'm always over-cautious when it comes to anything related to feeding and hop chambers. It's just such a minefield sometimes. Let us know how you get on.
Just measured my nozzel and its 21.37mm so would a 21.4mm double o'ring rocket nozzle be OK?
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50 minutes ago, ak2m4 said:
@steverebo always good to keep in mind that there's so many factors involved nothing is ever 100% guaranteed to fit or work straight away. Exactly the same with these ZCI plastic chambers. They are however cheap. If you purchased from me let me know, I've got some sample zci adjustable nozzles around somewhere, I'll drop one in for you for free 🙂 might help you diagnose any issues.
Unfortunately you have already shipped my order, I think my entire gearbox has been built with parts from your store 😁
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I didn't measure because from what I was told the nozzle length is directly linked to the hop chamber and I'm replacing the hop chamber and zci have 2 different length nozzles.
I will give the 21.4 a go and see if I have any issues
Zci barrel causing misfeeds and jams are mad bull barrels any good
in Electric Guns
Posted
I have just checked and I do have quiet a bit of wobble on my nozzle maybe it's nozzle misalignment caused by the lonex mags