Upgrading the WELL metal gbox series

[SANDMAN]

Since the arrival of the WELL metal gearbox series opens a new chapter in the ACM story, we have to re-educated ourselves on this new AEG.

I'll just share the stuff that i've learned so far... pareho lang tayong lahat newbies dito sa metal gbox AEGs, so if the gurus from the Hi-end side of the sport wanna jump in and offer tips.. please go right ahead...

What? Upgrade agad? Kabibili ko lang ah! Sorry guys.. but its a sad fact that the WELL AEGs come with plastic bushings just like the MARUI AEGs they were copied from. Too bad they didn't copy the CLASSIC ARMY AEGs para metal bushings na agad out of the box.

Plastic bushings are fine for initial use but they will fail eventualy(1-2 bags of bbs lang daw sa TM eh) with catastrophic results- usualy bringing down the piston body or some of the gears.

These should be replaced with aftermarket METAL BUSHINGS and properly shimmed by a competent gunsmith.

While we're at it.. the excess GREASE should be removed from the gbox. Preferably replaced with good quality lube. Sobrang dami kasi yung nilagay sa factory. The grease spits out of the nozzle and gunks up the hop up rubber and even the barrel. OUT YOU GO!!!

PORTING THE STOCK PISTON HEAD and replacing the O-RING is a low cost option that should also be done at this point to improve comprssion. Might as well do it while the gbox is open.

Replacing the spring is another option at this point. I've tried installing the China-X120 spring and it did improve performance but i'm not quite sure if it will still chrono below 300fps... however, the WELL stock spring is a bit lame(lambot masyado) and maybe replacing this with a TM stock spring will improve performance slightly while keeping FPS below 300fps.

Basic upgrade pa lang 'to troops... will post again later... gotta go to work na.

[SANDMAN]

More detailed explanation of my post above:

Grease... for some reason.. WELL not only PUT A LOT of grease inside the M4 gbox.. they also used Grease of questionable quality. Not only does the grease gum up the works.. but it also seems to "eat" the plastic and rubber parts inside the AEG! Proof in point is that some WELL's chrono terribly OUT-OF-THE-BOX(also witnesed by one-airsoft cebu)!!! Opening these units will reveal that the gbox is suffering from loose compression due to the deterioration of the the O-RING. I've found o-rings that are cracked up and sometimes simply too small for the cylinder. Pati nga spring guide, mukhang may chicken pox dahil kina-inan ng grease...

Replacing the spring is now also a necessity for me due to several reasons. For one, the ROF of the WELL AEGs are too high with the stock spring!Minsan, di na kaya habulin ng hi-cap mag ang supply ng bbs into the chamber. Secondly, the well stock spring is sometimes even weaker than the BE AUG stock spring!!! WTF!!!

Upgrading the spring to an X120 will lower the ROF, improve power a bit and improve the feeding of the magazine. The X120 is still ACM LEGAL though. I've tried the X120 upgraded Well units on my poor-man's-chrono double walled cardboard and the WELL's passed with flying colors(di sya naka-thru and thru sa cardboard- mas malakas pa yung steyr aug ko na naka-bore up dati). hehehehe

to be contiued....

[ROSCOE]

sir stan nice review.
if ever kukuha ako ng m4 pa upgrade
ko agad.

[daroyski]

hmmmm.. i think this goes with my MP5A5 too? hehehehehe

[SANDMAN]

alsimons said:

hmmmm.. i think this goes with my MP5A5 too? hehehehehe

Most definietly sir AL.. kaya tabi ka na ng budget para safe ang beloved MP5 mo sir.

dagdagan ko pa 'tong post ko later mga sirs...

stay tuned....

[keenwerkz]

sir stan,

have opened my well mp5 and others well mp5... same thing ang na-notice ko interms of abundant use of grease and very very poor o-ring quality. so i replaced the o-ring and tried to clean up the greasy mess.. used silicone oil instead... didn't replace my bushings yet but it is in the works.

i already have opened my gearbox for about 4 times (tried stock tm springs @240fps, the well spring @220-230fps, spacers and now x120 - chrono ko pa tomorrow nyt).. its quite funny that the gearbox is really IMHO difficult to reassemble compared to a marui mp5. I dont know if this i have the same experience as u stan but in my case the anti-reversal latch seems to be loose (like i need an extra hand to put it back again) unlike sa TM... basta IMHO for the technically challenged i recommend to have ur gun/gearbox opened by someone well-versed with the process or u'll end up w/ a sorry gun..

[SANDMAN]

Thanks for the chrono details sir Keenwerks. I hope you will share your findings with the X120 spring. In my poor man's chrono- (and to the best of my guestimates) di pa rin sya aabot ng 300fps but a simple chrono test will settle this once and for all! BTW- i notice that there are TWO kinds of X120 springs... the ones from KOKOMIMI are actualy the same springs that are found in the RED CYLINDER AUGS. They are indeed longger than the old AUG stock springs, but not as stiff and HARD as the X120 springs I get from BROJAMES. Hmmm....

The WELL gbox is also very difficult to re-assemble due to the fact that the screws are only "tapped" into the gbox. Parang mga woodscrew na pinilit lang na ipasok sa bakal. Huhuhu... they work... but just barely.. they don't lend themselves to frequent assy and dissasembly... baka ma strip agad ang mga screws if you're not carefull....

Might as well continue my original thread...

HOP UP BUCKING(rubber):


Another problem area. The rubber is not quite as good as a stock MARUI(in fact, it's terrible). Aside from being too hard and slick- it's sometimes torn and brittle. One instance where I had to replace the orig hop up with an aftermarket unit from GUARDER- realy improved performance by leaps and bounds! Not only was the BB "lifted" better- but the power also seemed to improve due to the better grip of the hop-up against the BB while the cylinder pressured-up.

Then again- not ALL units have bad hop ups... some units that passed through my hands also had hop-ups that could send a BB straight to heaven... but that was only 3 units out of EIGHT. The rest had mediocre to passable performance.

Finaly, the HOP UP adjustment knob is also soooo loose that you sometimes loose your settings with the vibrations of the AEG shooting full auto. In this regard- I prefer the MP5 hop up adjustment system since it doesn't shoot itself loose as easily. Anyway, if it's any consolation.. even TM and CA users usually put a dab of glue on the hop up knob to keep it from moving under fire.

[keenwerkz]

btw im using the x120 from brojames (parang blued steel ang kanyang itsura) by the looks of it, it resembles m733 spring (mas mahaba lang konti ang 733 by about 1 1/2 turns) pati sa material and stiffness. I was even infact tempted to put in the mp5... pero i was quite afraid that it would surpass our limits since the stock 733's could do 300's.

Nwei i tested the gun last night (makati tlaga ang kamay e... hehehe) using then poor man's chrono... lo and behold the inconsistencies of the coke can (i drank 2 coke cans last night for this test - - burp)...

All tests are done at point blank using ICS .20 bbs

Coke Can 1 - big dent to 1 side + a bit of tear
Coke Can 2 - wide tear on 1 side and big dent + about 1/4 bb-size dimple on the other side

i tried the test again on "undamaged" side of both coke cans, same results... probably thats one reason God created a chrono... And i came to realize to that PROBABLY coke cans are also like ACM's - QC and product tolerances differ... heheheh... joke2...

BTW... i hope you can check on this 2... me and a teammate both have feeding problems with our mp5's.. we have problems re: full auto -- maraming misfeeds. And we thought that the magazines were the cause kasi we tried loading using TM magazines and feeding was flawless... I hope these were just isolated cases though (malas ko lang ata.. )

[keenwerkz]

update on the x120 on chrono... its running at 300fps. quite great unfortunately it is above our limits here in cebu, but im keeping the spring for games at the 300fps level.

Im looking forward on having metal bushings and a TM mag for more reliability.

[SANDMAN]

Thanks for the chrono results on your X120 spring sir Keenwerks! Buti pa kayo may chrono na.. kami naghahanap pa... BTW, may madaling solution yang misfeeding magazine nyo, just PM me okay...

[SANDMAN]

AIRSEAL NOZZLE:



Or rather... I wish it was an airseal nozzle.. hehehe.. This is THE BIGGEST air leak in WELL Metal gearbox AEG. After all the mods I've done to the internals- the darned nozzle leaks air like a sieve! It's "fit" with the cylinder head nozzle is simply toooo looooose! This is the reason that many chrono readings are all over the scale... sometimes the nozzle seals properly- giving good chrono readigs, but most of the time the nozzle is skewed off-center leaving a big gap for the compressed air to escape!

I've you've done all the other mods to the internals of your WELL AEG, then you might as well finish of with an Airseal nozzle(they come with o-rings too) to match the NEW HOP UP RUBBER(preferably GUARDER brand). I assure you that your chrono readings will not only stabilize, but so will your accuracy(no more low powered bbs ruining the pattern). A better fitting nozzle will also improve the feeding reliabilyt of your AEG. The darned thing wobbles so much.. it's a wonder it gets to feed BBs at all!

Other stuff to look into:

Remove the fuse block- it'll corrode in time and give you lots of headaches in the future. The battery terminals are idiot-proof anyway... (it means.. if you ever get to reverse them .. you're a bloody idiot!!!) ;D A direct connection will give you better power delivery.

Change to Deans Plugs while you've got the soldering iron out.
-


www.wsdeans.com/products/plugs/ultra_plug.html

A pair will cost you approx 150p and you need two pairs.. the first pair is for your battery(female) and aeg(male)... one connector(male) from the second pair will be used for your charger. The stock Marui connectors are notorious for loose connections...

I almost bought a new EG1000 coz I thought my EG700 burned out.. turned out.. that my connectors were just loose! The Deans plugs realy improved power delivery... kayang kaya na ubusin ang power ng batts ko.. I think I added TWO HICAPS to the maximum usable power of my batts just by changing the connectors... Heck- Anton was about to buy a new set of BATTs for his TM M733- but after we changed his connectors to DEANS PLUGS nagulat sya na ang-tagal pala ma-drain ng batts nya... from two/three days of plinking- naging 1game + 1week na sya!

[ROSCOE]

sir stan san makakabili ng deans plug?
available ba yan locally?

[ZeeZeeTop]

uuuuuuuuuuuuuuy! interesado si alvin bili ng deans plug... bakit kaya?? baka meron ka na rin TM na loose din ang connection... hehehe

[SANDMAN]

Meron sa BATTERY KINGDOM sir...

[ROSCOE]

bwahahaha! unta naa koy
TM! hehehehe