The "joys" (aka. trials) of being a gun doctor!

ccyg8774 · March 11th, 2013, 00:35

Quote:

Originally Posted by ScooterVauto

ok this is a new one to me..
we have all seen various axle damage, but how about this
aperantly it was dry fired ALOT, but that much damage??
Discuss.

Hi... Can I get your premission to post these 6 pictures on a Chinese forum as a example of "that's why you should always be careful and always check for proper shimming"? Thanks!

ScooterVauto · March 11th, 2013, 02:09

Quote:

Originally Posted by ccyg8774

Hi... Can I get your premission to post these 6 pictures on a Chinese forum as a example of "that's why you should always be careful and always check for proper shimming"? Thanks!

yes that will be fine.

ccyg8774 · March 11th, 2013, 15:20

Quote:

Originally Posted by ScooterVauto

yes that will be fine.

Thanks a lot.

lurkingknight · March 18th, 2013, 23:49

some test firing of my g36 before game season starts... and this happened.

fired about 500 rounds full speed in all... probably another 1000 rounds at half speed.

CA 7mm bearings. Will be ordering up some bushings now.

and maybe a new set of gears. The SHS 13:1s are still in good shape... the spur on the fat side is a bit polished for obvious reasons... it ate away at the gearbox more than the gear. Some grinding occurred at the extreme sides of the teeth... so my spur and sector are a fraction more helical than straight cut now.

I didn't even lay into the trigger when it went... just pulled it sounded like the motor height came undone... I pulled once more to verify, no more cycle. And that was that. Pretty obvious what happened once the gearbox came out.

e-luder · July 13th, 2013, 00:53

So I know this is mostly dedicated to an AEG gun doc but....

I was sent an M4 to look after. Took it apart.

....and look at what I found!!!

This was a build up of "lube gunk". The owner complained that it no longer fired and would vent gas on the first pull of the trigger.

I surmise that because of the cold gas venting from the magazine, it completely froze the gunk up and made it super hard.....

This is what happens when you don't take care of business like you should, fellahs.

The gunk was soooooo thick and hard that it didn't return the bolt all the way such that the loading muzzle and gas route packing on the magazine didn't line up. Ergo, all the vented gas.

Look at how thick the fucker is!!!
That's one helluva lot of lube....
I had to mildly heat the muzzle up just to get it off because it was soooo compacted in there good and tight that it refused to be scraped off.

Frack!!!!!

This is the side effects:

notice how much of the bolt was still sticking into the buffer tube. This prevented me from properly taking the upper and lower receiver apart. I had to undo the front pin and completely separate the two halves just to get the damn bolt out....

I don't know what the hell kind of lube this guy was using but...WTFBBQ!?

Also, why the hell would this be all over the loading muzzle anyways!???

Anyways, problem solved. Gimmie my $50 fee....
...or a carton of Belmonts. Large Kings.

MaybeStopCalling · July 13th, 2013, 01:47

I'm surprised a couple of strikes of the F/A wouldn't get it to seat forward enough to open up.

e-luder · July 13th, 2013, 03:06

Quote:

Originally Posted by MaybeStopCalling

I'm surprised a couple of strikes of the F/A wouldn't get it to seat forward enough to open up.

The gunk hardened so much. It felt like hard rubber after.
It was "packed" in there when the muzzle slams into the hop up chamber. I guess repetition made it so well packed that the bolt no longer returned to battery.

That was as far as the bolt went...

Styrak · July 13th, 2013, 11:44

Firing out of battery! Lol.

Styrak · July 13th, 2013, 11:45

Quote:

Originally Posted by lurkingknight

some test firing of my g36 before game season starts... and this happened.

fired about 500 rounds full speed in all... probably another 1000 rounds at half speed.

CA 7mm bearings. Will be ordering up some bushings now.

and maybe a new set of gears. The SHS 13:1s are still in good shape... the spur on the fat side is a bit polished for obvious reasons... it ate away at the gearbox more than the gear. Some grinding occurred at the extreme sides of the teeth... so my spur and sector are a fraction more helical than straight cut now.

I didn't even lay into the trigger when it went... just pulled it sounded like the motor height came undone... I pulled once more to verify, no more cycle. And that was that. Pretty obvious what happened once the gearbox came out.

And that's why you don't use bearings.

MaybeStopCalling · July 13th, 2013, 22:41

Quote:

Originally Posted by e-luder

The gunk hardened so much. It felt like hard rubber after.

ccyg8774 · July 14th, 2013, 02:48

Quote:

Originally Posted by lurkingknight

some test firing of my g36 before game season starts... and this happened.

http://dreamers-ink.ca/airsoft/boom.jpg

http://dreamers-ink.ca/airsoft/grind.jpg

fired about 500 rounds full speed in all... probably another 1000 rounds at half speed.

CA 7mm bearings. Will be ordering up some bushings now.

I didn't even lay into the trigger when it went... just pulled it sounded like the motor height came undone... I pulled once more to verify, no more cycle. And that was that. Pretty obvious what happened once the gearbox came out.

I have a TM G36C that like to do the same thing till I changed to steel bushings...

ccyg8774 · July 14th, 2013, 02:49

Quote:

Originally Posted by e-luder

The gunk hardened so much. It felt like hard rubber after.
It was "packed" in there when the muzzle slams into the hop up chamber. I guess repetition made it so well packed that the bolt no longer returned to battery.

That was as far as the bolt went...

Would some solvent work?

e-luder · July 14th, 2013, 14:52

Quote:

Originally Posted by ccyg8774

Would some solvent work?

Dunno, tbh. I didn't have any at the time.

Quote:

Originally Posted by styrak

Firing out of battery! Lol.

Yeah I know, I know.
I LOL'd too...at myself.

Styrak · August 2nd, 2013, 23:44

I was given a G&G SCAR-L and a long outer barrel to replace the stock short one.
Ok fine, that's a normal request.

Open up the gun and take the barrel out of packaging.....STAR type SCAR barrel.

Sigh.

HKGhost · September 22nd, 2013, 21:57

Yay, I got another gun that wasn't put together very well. Now I have to clean up the mess.

Cracked and missing piece from the switch assembly.

Two piece contacts sandwiched and tried soldering them together.

Mismatched contacts that isn't even making contact.

And the soldering job. OMG!!!

The wiring was also shredded but I don't want to post all the issues with this gun. And to whoever did this job, I'm not bashing you, but please don't do this or anything that you don't know how to.

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March 18th, 2013, 23:49	#94
lurkingknight "bb bukakke" KING! Trader rating Join Date: Jul 2011 Location: Ottawa	some test firing of my g36 before game season starts... and this happened. fired about 500 rounds full speed in all... probably another 1000 rounds at half speed. CA 7mm bearings. Will be ordering up some bushings now. and maybe a new set of gears. The SHS 13:1s are still in good shape... the spur on the fat side is a bit polished for obvious reasons... it ate away at the gearbox more than the gear. Some grinding occurred at the extreme sides of the teeth... so my spur and sector are a fraction more helical than straight cut now. I didn't even lay into the trigger when it went... just pulled it sounded like the motor height came undone... I pulled once more to verify, no more cycle. And that was that. Pretty obvious what happened once the gearbox came out. __________________ I futz with V2s, V3s and V6s. I could be wrong... but probably, most likely not, as far as I know.

July 13th, 2013, 00:53	#95
e-luder Trader rating Join Date: Aug 2011 Location: Centre Mass	So I know this is mostly dedicated to an AEG gun doc but.... I was sent an M4 to look after. Took it apart. ....and look at what I found!!! This was a build up of "lube gunk". The owner complained that it no longer fired and would vent gas on the first pull of the trigger. I surmise that because of the cold gas venting from the magazine, it completely froze the gunk up and made it super hard..... This is what happens when you don't take care of business like you should, fellahs. The gunk was soooooo thick and hard that it didn't return the bolt all the way such that the loading muzzle and gas route packing on the magazine didn't line up. Ergo, all the vented gas. Look at how thick the fucker is!!! That's one helluva lot of lube.... I had to mildly heat the muzzle up just to get it off because it was soooo compacted in there good and tight that it refused to be scraped off. Frack!!!!! This is the side effects: notice how much of the bolt was still sticking into the buffer tube. This prevented me from properly taking the upper and lower receiver apart. I had to undo the front pin and completely separate the two halves just to get the damn bolt out.... I don't know what the hell kind of lube this guy was using but...WTFBBQ!? Also, why the hell would this be all over the loading muzzle anyways!??? Anyways, problem solved. Gimmie my $50 fee.... ...or a carton of Belmonts. Large Kings. __________________ "May you fight with the strength of ten full grown men."

July 13th, 2013, 11:44	#98
Styrak Trader rating Join Date: Jan 2007 Location: Saskatoon, SK	Firing out of battery! Lol. __________________ Airsoft Sales and Repair/Upgrade Services

July 13th, 2013, 01:47	#96
MaybeStopCalling Green Synergy Trader rating Join Date: May 2009	I'm surprised a couple of strikes of the F/A wouldn't get it to seat forward enough to open up.

August 2nd, 2013, 23:44	#104
Styrak Trader rating Join Date: Jan 2007 Location: Saskatoon, SK	I was given a G&G SCAR-L and a long outer barrel to replace the stock short one. Ok fine, that's a normal request. Open up the gun and take the barrel out of packaging.....STAR type SCAR barrel. Sigh. __________________ Airsoft Sales and Repair/Upgrade Services

September 22nd, 2013, 21:57	#105
HKGhost Trader rating Join Date: Nov 2009 Location: Mississauga, ON	Yay, I got another gun that wasn't put together very well. Now I have to clean up the mess. Cracked and missing piece from the switch assembly. Two piece contacts sandwiched and tried soldering them together. Mismatched contacts that isn't even making contact. And the soldering job. OMG!!! The wiring was also shredded but I don't want to post all the issues with this gun. And to whoever did this job, I'm not bashing you, but please don't do this or anything that you don't know how to. __________________ Please email me as I'm not on ASC too often. Custom Build \| Upgrades \| Repairs \| Maintenance Contact: ghostgunwork@gmail.com / Private Message

The "joys" (aka. trials) of being a gun doctor!

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