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Question: LM4 O-Rings / Lube

lube o rings o-rings maintenance

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#1 BioRage

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Posted 30 July 2013 - 06:26 AM

Updated:

Got custom o-rings in! Thanks everyone for the help :).

Hopefully this thread can be use for beginners such as me for the future ;)

Posted Image
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Hi,

I'm receiving my LM4 PTR on Friday according to my mail tracker! So I am really excited.

I want to get down to maintenance tools I require for the LM4 and Magazines..

I've done some research but I'm pretty sure I am missing things, so please help me out.

Current List:

Silicon Oil:
25 or 30 wt Silicon oil

Purchased this one..
Posted Image

Release Valve/ LM4 Bolt:
Danco #10

· 1/2 in. I.D. x 11/16 in. O.D. x 3/32 in. wall


Charging Valve O-Ring Size:
002 3/64 ID 9/64 OD 3/64.

Unfortunately us Canadian's don't have it good as the U.S with what they carry so I need to find a place that sell the o-rings..

I was looking at these, but not sure if they would work with everything I need..

Link 1:

Link 2:

Any other feedback/tools(screwdrivers)/etc. I should pick up would be greatly appreciated.

I also heard frog lube should be on my to buy list, however does anyone know anyone in Canada that sells it, or I assume I'd have to order from the U.S

Bolt Lube:
Frog Lube purchased

Accessories:
Gloves
Cleaning Swab

Edited by BioRage, 09 August 2013 - 09:43 AM.


#2 Lost

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Posted 30 July 2013 - 08:15 AM

Hi there :D

Here's a previous topic that someone asked the same kind of question.
http://www.kwausa.co...112#entry100074

Have fun with your new toy!

#3 BioRage

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Posted 30 July 2013 - 09:50 AM

View PostLost, on 30 July 2013 - 08:15 AM, said:

Hi there :D

Here's a previous topic that someone asked the same kind of question.
http://www.kwausa.co...112#entry100074

Have fun with your new toy!

Thanks Lost!

I will look into this thread.

#4 General Pickle

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Posted 30 July 2013 - 02:06 PM

As for o-rings: http://www.oringwarehouse.com/

Size 002, 70-durometer Silicone, Red, FDA. Those will replace the silent fill o-ring, though if you're talking about the inner o-rings for the seals then I'm not sure.

#5 apilar

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Posted 30 July 2013 - 04:25 PM

Fellow Canadian here!

For the lube, I just use 'superlube' from homehardware. Seems to work very well! I use it on all my GBB's.

http://www.homehardw...?Ntt=super lube

General pickle -- does that site have any orings that fit the bolt/loading nozzle? The one that came with the Ra-tech npas is very tight and my stock one has a tear.

Alex


edit***--- i see they have a size chart. sorry about that i can look it up. Also, It doesn't appear they ship to canada...

Edited by apilar, 30 July 2013 - 04:28 PM.


#6 General Pickle

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Posted 30 July 2013 - 08:58 PM

Aww poop, I thought they could ship out of the states, sorry! For the bolt I've had very good results with the Harbor Freight HNBR set, though I have a feeling that they aren't available in Canada either :(

#7 BioRage

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Posted 31 July 2013 - 11:12 AM

View Postapilar, on 30 July 2013 - 04:25 PM, said:

Fellow Canadian here!

For the lube, I just use 'superlube' from homehardware. Seems to work very well! I use it on all my GBB's.

http://www.homehardw...?Ntt=super lube

General pickle -- does that site have any orings that fit the bolt/loading nozzle? The one that came with the Ra-tech npas is very tight and my stock one has a tear.

Alex


edit***--- i see they have a size chart. sorry about that i can look it up. Also, It doesn't appear they ship to canada...


View PostGeneral Pickle, on 30 July 2013 - 02:06 PM, said:

As for o-rings: http://www.oringwarehouse.com/

Size 002, 70-durometer Silicone, Red, FDA. Those will replace the silent fill o-ring, though if you're talking about the inner o-rings for the seals then I'm not sure.

Hello Gents,

Thanks for the reply, I've ordered some Frog Lube, and will pick that up this weekend.

As for the o-rings, I want all o-rings to replace and repair the LM4 without any down time.. the question is whether I should get the o-rings custom made with Viton or silicone, might get them both to test them up. I really do not know the difference, however the ones made with Viton are a bit more expensive.

#8 General Pickle

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Posted 31 July 2013 - 12:05 PM

I think you'll be good with the silicone. Silicone has great properties especially with high/low temperatures and is very resistant to all sorts of chemicals. I forget the exact wording but I'm fairly sure I recall reading that silicone is well suited for use with propane. I also used some spare nitrile o-rings before I ordered the silicone ones with good results. The mags that have had o-rings replaced with nitrile are still going strong so I think either of those materials will work well. Also just as a testament to Froglube, I've been using it in all three of my KWA's and they're in fantastic health because of it.

#9 Chuck S

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Posted 01 August 2013 - 03:15 AM

Stick with a very light amount of silicone oil for the first couple of months.  Frog Lube is highly hyped and maybe shows incremental improvements in laboratory tests but the factory spec silicone lube works for airsoft (and CLP works fine in cartridge guns).  Anyway don't mess with non-approved lubricants while the gun is in warranty.  You can use KY Jelly or peanut butter after that if you want.  :)

There is no call for grease in either the LM4 or M4.  Grease adds friction and slows moving parts.  Light oil is what's needed, not heavy.  I've seen guys induce stoppages with grease but   I'm sure many use it without problems, though.

-- Chuck

#10 BioRage

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Posted 01 August 2013 - 05:00 AM

View PostGeneral Pickle, on 31 July 2013 - 12:05 PM, said:

I think you'll be good with the silicone. Silicone has great properties especially with high/low temperatures and is very resistant to all sorts of chemicals. I forget the exact wording but I'm fairly sure I recall reading that silicone is well suited for use with propane. I also used some spare nitrile o-rings before I ordered the silicone ones with good results. The mags that have had o-rings replaced with nitrile are still going strong so I think either of those materials will work well. Also just as a testament to Froglube, I've been using it in all three of my KWA's and they're in fantastic health because of it.

Hi Pickle, thanks for the info, I'll go pick up some silicone ones tomorrow!

Haha, I read all the hype on the forums here, I plan on using it on my WE AK74UN as well!

View PostChuck S, on 01 August 2013 - 03:15 AM, said:

Stick with a very light amount of silicone oil for the first couple of months.  Frog Lube is highly hyped and maybe shows incremental improvements in laboratory tests but the factory spec silicone lube works for airsoft (and CLP works fine in cartridge guns).  Anyway don't mess with non-approved lubricants while the gun is in warranty.  You can use KY Jelly or peanut butter after that if you want.  :)

There is no call for grease in either the LM4 or M4.  Grease adds friction and slows moving parts.  Light oil is what's needed, not heavy.  I've seen guys induce stoppages with grease but   I'm sure many use it without problems, though.

-- Chuck

Hi Chuck,

So you recommend I only use silicone oil for the first couple of months, and not frog lube? Until of course warranty (not sure of the time) is over?

I'll keep that in mind! Yes I've read not to use any form of grease at all, it clogs any rifle :)

Thanks for the tips.

#11 niko_gpsy

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Posted 01 August 2013 - 06:35 AM

The only part that really needs lubing is the piston O-ring and there are many that run the bolt dry without issues.  With that said I frog lube all my gbb guns and they have worked the best out of anything I have ever used.  But I tend to still use a little silicone oil on the O-rings to be safe.

#12 -wigs-

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Posted 03 August 2013 - 12:31 PM

Chuck coming in with his " it's a gimmick" " tye rs counterpart doesn't need it so this doesn't" "it's overhyped" comments. A light coat of FL on the bolt works amazingly well, everything else just needs a tiny amount of silicone oil.

Edited by -wigs-, 03 August 2013 - 12:32 PM.


#13 BoobieM4H

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Posted 05 August 2013 - 12:57 PM

Murder Oil. Google that ish.

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#14 BioRage

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Posted 09 August 2013 - 09:40 AM

Thanks for the replies guys. I got some Frog Lube from a local vendor (rare find in Canada lol) 4 oz for $17.

My next order will be some Murder Oil to try that out.

I got my custom o-rings that came in, picked them up today. Hoping to put them in soon.
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