TM 5.1 gas spewing

[Slono]

Originally Posted by turok_t

Hey Slono, actually, i cant believe i forgot to say this, but the recoil spring and hammer spring is upgraded. Im using the Guarder 150% spring. It looks like this:

http://shop.ehobbyasia.com/guarder-e...a-5-1-150.html

You mentioned about recoil buffers? Hmm im not sure what that is, but i have a recoil rod, recoild spring and the bushing. They all look like this:




Do you think this is causing me problems?

Also, any ideas on the double feed issue?

Here's a picture of the MEU's (short length) guide rod.



The rubber thing on the end of the spring is a recoil buffer, rubber, whatever you want to call it. You should have one on there... I've never seen or heard somebody run a GBB without it. If you still have your stock guide rod with you there'll be a rubber washer that looks exactly like the one in my picture. Take it off and put it on your upgraded guide rod and fire off a few shots. See if that does anything.

The purpose of the rubber is to prevent your spring plug from smashing onto your guide rod and dampening the shock that your hop up unit takes from the blowback action.

Edit: And yeah, use the AS nozzle since you have the upgraded spring.

[Styrak]

Originally Posted by Slono

The rubber thing on the end of the spring is a recoil buffer, rubber, whatever you want to call it. You should have one on there... I've never seen or heard somebody run a GBB without it. If you still have your stock guide rod with you there'll be a rubber washer that looks exactly like the one in my picture. Take it off and put it on your upgraded guide rod and fire off a few shots. See if that does anything.

The purpose of the rubber is to prevent your spring plug from smashing onto your guide rod and dampening the shock that your hop up unit takes from the blowback action.

I've never used a GBB that had a rubber shock buffer. Including my TM Hicapa 5.1

[turok_t]

Actually, i think i kinda get what ure saying, but my stock marui doesnt have any rubber spring buffer..all it comes with is the long recoil in the pic i posted above. Here, this is how a 5.1 disassembled looks like:

http://www.justpistols.co.uk/tm_hc_stripped.jpg

This is how my gun looks like when taken apart

[Daiviet]

Originally Posted by Slono

The rubber thing on the end of the spring is a recoil buffer, rubber, whatever you want to call it. You should have one on there... I've never seen or heard somebody run a GBB without it. If you still have your stock guide rod with you there'll be a rubber washer that looks exactly like the one in my picture. Take it off and put it on your upgraded guide rod and fire off a few shots. See if that does anything.

uhh... I'm pretty sure most gbb's don't come with the buffer. I've never really seen the need to run a buffer except maybe short stroking the slide.

And regards to an earlier comment, the stock nozzle won't crack because of the strength of the return spring, it'll crack because of the extra pressure exerted by propane. TM's guns were originally designed to use duster (hfc134a). Another argument with the AS nozzle is because it's so hard, it makes it more brittle. The SD POM nozzle I've found works best, just don't use the rocket bulb that comes with it.

[Slono]

Huh, I thought they all came with one since the TM 4.3, 1911, and MEU models all have them I assumed it would be the same for the 5.1, but it seems like they included them in every model except the 5.1. Nevertheless, having a recoil buffer would help take the impact off certain parts of the gun, so if you can pick up the AS recoil buffers your gun will like you more.

Try lubricating all the contact points of your slide catch. Check to see if the firing pins are smooth and bouncy too and if they're not, try lubricating that as well. I know I sound like a newbie who slops lube on everything, but give it a try. You can always wipe it off if it bugs you.

[Shirley]

Buffers just make your slide last a bit longer from damage from barrel and slide. Also reduces slight recoil, depends how much you put on.

[pusangani]

I run 2 buffers and a short stroke spring in my Noobkiller 5000, makes it nice and snappy with no jump.

[juicy]

I run 0 buffers - works just fine so far. On my KJW, I found that the addition of a buffer (stock, KJW provided one) + 160% recoil spring inhibited the slide lock function, as the slide could not physically cycle back (without me racking the slide hard to the back) far enough for the slide lock to engage. I just won't be using my stock TM slide in colder weather, that's all.

The Guarder springs tend to be ridiculously long... but I don't think that just a Guarder recoil spring and no buffer should inhibit the cycling of the slide/slide stop engaging.

As to the nozzle - replacing it with an aftermarket part shouldn't do anything but increase the time between installing replacement nozzles, correct? Might as just run the stock TM one for now and worry about getting that aftermarket one to fit later.

[ILLusion]

Originally Posted by turok_t

Im using the Firefly soft hop up. Yes, it is aligned, but the thing is, the last bb isnt even feeding into the last hop up, so what does the hop have anything to do? Anyways here are some pics

Your hop up rubber isn't installed properly. It's pinched. It should be a full circle and shouldn't form that "pouty lip" at the bottom. This could be creating problems with holding BBs in place.

Originally Posted by turok_t

1. Now, if i use the stock TM loading nozzle, will it explode or damage the gun because my slide and everything else has been upgraded? I heard that the AS one is nice and hard so its more durable.

A bone stock TM Hi-Capa is capable of cracking it's nozzle if you run it on propane. Nothing needs to be upgraded for it to crack. Having a heavier (metal) slide and an enhanced recoil spring is all it takes to exacerbate the issue.

Originally Posted by Slono

Here's a picture of the MEU's (short length) guide rod.

*img missing*

The rubber thing on the end of the spring is a recoil buffer, rubber, whatever you want to call it. You should have one on there... I've never seen or heard somebody run a GBB without it. If you still have your stock guide rod with you there'll be a rubber washer that looks exactly like the one in my picture. Take it off and put it on your upgraded guide rod and fire off a few shots. See if that does anything.

Incorrect, TM Hi-Capas do not come with a shock buffer. However, most other Marui pistols DO have the shock buffer: M1911A1, MEU, 4.3, 4.3 Dual Stainless, 4.3 Desert Warrior, etc.

Originally Posted by juicy

The Guarder springs tend to be ridiculously long... but I don't think that just a Guarder recoil spring and no buffer should inhibit the cycling of the slide/slide stop engaging.

I haven't had any issues with Guarder springs, and I run them in the majority of my pistols.

[Thenooblord]

time to consolidate those into one giant post brian? lol

[turok_t]

okay, so after a good nite sleep, i figure trying to attempt this again... I changed back to my original hop up rubber to see if there are any feeding issues and to ensure that it forms a nice round slip with no pouting.

Here are my results... When i fire, sometimes the bb shoots out, sometimes, it drops out, or it drops out with a bb that is fired...All of this is with the AS air nozzle. The original TM slide catch and my SD slide catch is also now working!

So the main problem right now is the feeding issue..

[juicy]

Wait - SD slide catch? So you've got aftermarket externals too, huh?

When you reinstalled your stock TM hop up, was the hop up turned all the way off?

But asides from that - I've got no clue. All the solutions I can think of abstractly have been exhausted...

[Daiviet]

Originally Posted by turok_t

okay, so after a good nite sleep, i figure trying to attempt this again... I changed back to my original hop up rubber to see if there are any feeding issues and to ensure that it forms a nice round slip with no pouting.

Here are my results... When i fire, sometimes the bb shoots out, sometimes, it drops out, or it drops out with a bb that is fired...All of this is with the AS air nozzle. The original TM slide catch and my SD slide catch is also now working!

So the main problem right now is the feeding issue..

Take it to a gun doc, I think that'd be the easier route. As nice as it is to try to figure out everything yourself, having someone experienced work on it and show you what was wrong may be a lot easier.

[turok_t]

Originally Posted by juicy

Wait - SD slide catch? So you've got aftermarket externals too, huh?

When you reinstalled your stock TM hop up, was the hop up turned all the way off?

But asides from that - I've got no clue. All the solutions I can think of abstractly have been exhausted...

its actually a nova slide catch...but its working and catching my slide after the lastt bb is shot (i tried this morning).

The hop up was turned 1/2 way but im going to try to turn it all the way, but i did notice something.. i placed a bb in the hop up chamber and i looked down the chamber to see how much light goes thru..surprisingly, there was more light when using the stck tm hop up compared to the fire fly hop up..the firefly hop up hugged the bb more firmly since there was less light from the side..i made sure that the 2 screws securing the the 2 chamber halves were fastened tightly when using either the stock tm or firefly hop up.

[Thenooblord]

did you re install the rubber properly like brian said? in your pictures it isnt installed right