Using one plastic bushing...where do I put it?

[Kid]

Long story short, Area 1000 bushings suck for QC.

5/6 worked and the sixth is miss molded enough that it will not fit on the gear.
Have to put a plastic one back on


I am thinking that I should put it on the large part of the middle gear, but would like someone to contradict my thinking if I am wrong.

Usually I would post a wanted for a bushing, but in this case it's a friend's gun that I'm upgrading and he can't wait.

[six4]

if i read this right you are upgrading to metal bushings and need to put a plastic one back in?

[Kid]

Yes, because one of the metal bushings is no good.

[six4]

im suggesting you not do this. the tolerances between a metal bushing and the nylon one will be differant,running a nylon bushing with a steel one will lead to catastrophic failure,,gauranteed. your friend will just have to wait for the proper bushing. rushing a a mod especially a bushing one is a recipe for disaster and will cost your friend twice as much money and time for replacing stripped gears. im suggesting you go with gaurder bushings and wait till you have the quality parts to put it back together.

[Kid]

Originally Posted by six4

im suggesting you not do this. the tolerances between a metal bushing and the nylon one will be differant,running a nylon bushing with a steel one will lead to catastrophic failure,,gauranteed. your friend will just have to wait for the proper bushing. rushing a a mod especially a bushing one is a recipe for disaster and will cost your friend twice as much money and time for replacing stripped gears. im suggesting you go with gaurder bushings and wait till you have the quality parts to put it back together.

I told him this too... but he really, really, has made up his mind. The spring I put in for him is a PDI 150%, so it should be ok for a while.

[six4]

Originally Posted by Kid

I told him this too... but he really, really, has made up his mind. The spring I put in for him is a PDI 150%, so it should be ok for a while.

a 150 spring with metal and used nylon bushing? wouldnt be suprised if it exploded in his hands at the first pull of the trigger.

[Tankdude]

put it on the bevel gear

[CDN_Stalker]

Ditto, bevel gear.

If the mechbox explodes, its because of the PDI spring (thye have largely sucked, been way out of normal tolerance the past few years, thicker wire and longer length, guaranteed to break the mechbox).

I have installed a single nylon gear in a mechbox I did for a guy (he had opened the bag, then put it loose in the box he delivered to me with the other parts, one bushing fell out somewhere between his place and his car, or his car and my place). I told him to order a new set of bushings, and I used one stock nylon one on his bevel gear, he ran about 3-4 game days with that set up (110SP spring) and nothing catastrophic happened at all. He eventually got his new bushings, I installed them for him.

[DYORD]

yeah.. bevel gear.. less stressed gear.

[Kid]

Anyway, I put it on the bevel and after having some problems with the trigger and fire selector I got it together and working again.

Unfortunately, either due to the battery, a poor motor, or other, the gun is unable to turn the spring over fully. It manages it a couple times, then sticks with three teeth left on the gear.

So I had to put the stock spring back in. Teaches him for buying a Cyma AK and using the stock 1200NiCd battery.

[CDN_Stalker]

Hey Kid, do me a favour and measure that PDI 150% spring. The only ones I've come across in the past few years that are true 150% springs (350fps) measure 6 3/8" long, and have a blackish brownish metal finish. The shitty ones are generally 6 5/8" to 7" long and have a dark gloss black finish. That'd explain why the gun can't turn the mechbox over, and why I strongly discourage everyone from going with PDI springs (even the ones for sniper rifles, I bought a 300% and it damn near ripped my CA M24 apart, even after I cut off a half dozen coils.) The latter spring in a V2 mechbox will destroy it within a few hundred to a thousand shots.

[Kid]

I measured it to be exactly 6.8 inches.

Near black in color. Came from ASCA Armoury a couple days ago.

If a picture would help to identify it, I can gladly take one.

[CDN_Stalker]

That's fine Kid, thanks. That will kill the mechbox pretty fast, and has good chances of chronying over 400fps (I think it was Droc that had a PDI 150% spring in his SR-16, it chronied around 425fps with 0.20g BBs. He left the spring in the full back position for a few weeks, and wasted a lot of ammo shooting it to get it to eventually drop down to around 400fps, some were a bit over, others a bit under. Field owners still had a problem with it, even though when I chronied 10 shots, the average was about 396fps, but because it chronied about 401-403fps every 6-7 shots, they made him use a velocity reducer, or semi only.) Case in point, talk our buddy into getting a Prometheus 110SP spring, that way he can both play under the limits as well as not have to worry as much about blowing his mechbox soon. And, know this, reinforced V2 mechboxes last longer than stock mechboxes, but will still break eventually (my G&P Hurricane mechbox in my MP5 with the 150% developed cracks mid-last year. I fixed the problem, but check it every so often.)

[DYORD]

even all the bushings are plastics, PDI150 will work fine... what more if you replace metals on some of it?

[CDN_Stalker]

Plastic bushings will work fine with that spring, but the gears will end up enlarging and wearing the holes in the bushings due to the added strain of a heavier spring, which would lead to pretty serious future problems. Better to invest $25 on a set of metal bushings now than a set of metal bushings and set of new gears, (maybe new piston) in the future.