Many TM Hicapa 5.1 problems, need help!

[philster911]

Originally Posted by Daiviet

If it's a stock hi capa though, it doesn't use normal o-rings. It uses a proprietary cup piston head instead.

so either OP is saying it doesn't have an o-ring, because technically it's true, it uses something else.

Or, the cup piston head is missing. At that point he has a choice of purchasing a new stock one, or upgrading to a better piston head. The latter is better than the former.

That's what i'm gonna do. I'm gonna buy a dyna-piston head from Nine ball.

[philster911]

Pics worth a thousand words :




My problem may be caused by the fact, i think, that there's NO piston head. Dunno if it's there, but looks like there's nothing where i think it may be.

EDIT: Here's a pic how the beast looks like ( not done with polishing, i'll finish tonight):

[jamuke]

Yup, the part you're looking for is H43-26, I think it's called piston cup.

All you need to get is a new piston head, this guy has 2 for sale
http://www.airsoftcanada.com/showthr...pa+piston+head

this guy has enhanced loading nozzle and piston head
http://www.airsoftcanada.com/showthr...pa+piston+head


EDIT. Daviet is right, what I meant to say was an UPGRADED piston head would fix your problem as they( most as I can tell) use an o-ring on thee piston head for a seal and not the piston cup thing

[Daiviet]

piston head is there, but it's missing the cup seal. Time to upgrade.

[philster911]

Ok, so dyna piston head from nine ball or any other upgrade piston head should make that beast work properly?

[jamuke]

as long as it's for a Marui hi capa,

if you're thinking of upgrading of your blowback unit to a lightweight one then the piston head is part of the package so you wouldn't need another

the Airsoft surgeon one for sale I linked with the upgraded loading nozzle is not a bad deal as eventually you'll need a new loading nozzle

of course the nine ball is aluminum and slick looking

regardless ...
remember to lube your O-rings, if you put silicone oil in your propane you should get enough lube but I also like to add a little extra when I clean my pistols.

I recently purchased silicone grease and spent the day greasing O-rings on everything I've got

anyway enjoy your pistol, GBB take some getting used to as they take effort to maintain but I find that to be part of the fun

as for making your gun work properly well..it should fix your gas consumption problem

[Gunny_McSmith]

Originally Posted by ILLusion

1. I have extra safety levers for sale.
2. I have new piston heads for sale, but generally, as long as the o-ring on your piston head isn't visibly torn, you more likely have a cracked nozzle.
3. The hammer doesn't stay cocked back if the leaf spring does not properly engage the sear. See the troubleshooting FAQ in the Hi-Capa FAQ/guide stickied to the top of the Upgrades & Modifications forum for resolution.

Amen... :P

[ILLusion]

Originally Posted by philster911

Ok, so dyna piston head from nine ball or any other upgrade piston head should make that beast work properly?

Yes.

You're definitely missing the piston cup. No idea how that could have happened... lol.

[philster911]

Lol i dunno, last owner was an idiot... lol .
Anyway, piston head is in the mail ( Thanks Hata ). Thanks everyone for the help!

[philster911]

Here's what it finally looks like:


There is some scratches due to the SERPA holster. Even if i polish them, when i put my gun in my holster it scratches again...
Here's my rear sight, i've drilled two holes, and i've putted some white paint in it, here what it looks like:





Bling rules mofo!
Comments?

[ILLusion]

Regarding the two whited holes, you should check out Daysiters or Nitesiters. The sight visibility is increased dramatically.

[Slono]

Originally Posted by ILLusion

Regarding the two whited holes, you should check out Daysiters or Nitesiters. The sight visibility is increased dramatically.

I agree. I've had them on my gun since this January and I can't be happier with the results.