M98 Custom - Cocking Problem

[paintballfreak6]

When I first played a paintball game with my Tippman Model 98 Custom, it uncocked during the game and I didn't know what was wrong. It wasn't completely uncocked because cocking pin was almost all the way back. It had stopped just before the sear latched on the bolt but it appeared to be cocked. One of my friends just told me it hadn't cocked all the way. Now it didn't happen again until a few weeks ago and so I decided to purchase a Full Boar Rear Cocking system for the looks and in hope that it would solve the problem. It didn't. It still didn't cock right every once in awhile. It never did it a lot until I purchased an RT System. I went to my local field and it was horrible all day long. Time after time, about 6 or 7 times a game it would happen. One time, a guy came to bunker me and I only got one shot off before it uncocked. Needless to say I was a sitting duck and got wasted. Do you know what is wrong? I've asked many people and no one seems to know the answer to my problem. If anyone knows the answer please reply.

JD

[+aPe RuNnEr]

dude this same exact thing happend to me when i was playing at my local field, and it was a total ****ing B|+(h. it could be that your vavle bolts, (you know the ones onthe side ofthe bolt are not tight enough) or you might need a new o-ring in your gun.

[Blimpey_boy]

does it happen when you are shooting it? The same thin happens to me, I also have Full Boar and sometimes when i'm shooting it just uncockes (a little bit) but it seems to happen to all Tippman 98s

[paintballfreak6]

ape runner- did you ever fix the problem?

[tonysk83]

haha ape runner, well replace your sear

[paintballfreak6]

tony- is that what I need to do?

[shockerboy02]

yep he is on the nose

[Chris Devers]

HEY!

Before you get that looked at,try a new tank.My gun did the same thing and a new tank fixed it.If you gun is spiking before it uncocks try that:) . Hope that helps!

[paintballfreak6]

well i used two tanks that day and one of them is a few weeks old but they both did it the same amount.

[Captain Roboto]

Hi Im not sure if this has been solved or not but Im having the same problem.

I was bunkering this one guy and decided to rush him. I had a clear shot at him and when I pulled the trigger nothing happened. ( My Nitro was almost full, I had paint.) I noticed that the cocking knob was in the cocked position. Anyways I ended up doing a 360 and running back for cover cause my gun has jammed.


I too have an RT. I used on CO2 and hoped by changing to NItro it would work but its still the same problem. I have changed my sear spring to the one included in the RT KIT.

upon complete dissassembly it seems all Orings are fine. There are no leaks in the gun as I have done the underwater test.

Currently this still happens at least twice in a game. How I get around it temporarily is to Uncock the gun while Im puling the trigger and then recocking. However this tends to double load and end up with exploded pain in the chamber or barrel.

[tonysk83]

that happen to my friends gun today(my old baby), so we took it apart and reassembled it and it worked fine:)

[kody206]

what it is is that a ball is getting stuck in the chamber and the bolt is pinching it.

[Empyreal Rogue]

I'm having a similar problem.

It all started when I lost my Ball Latch and thanks to SMG, I had a great idea to make a new one with, a shoe. After an entire afternoon of molding and cutting, I got it into a perfect shape, just as good as the original. So I go out for Beta test #1, it holds the ball in, so I pull the trigger. I heard the sound, but no ball came out of the barrel. I shot two more times and it finally came out, however after each shot the gun didn't re-cock, like it should. It pretty much went from Semi-Auto to Bolt Action. I'm using a Remote Line and a 20oz tank, however I spend some afternoons shooting crows with it (as lame and sad as it sounds, it's MONDO fun) so I probably didn't have a whole lot of C02. Could that be the reason it's not re-cocking and it takes three shots for the ball to escape the barrel?

[-=RA=-]

To the previous people's problems: with the RT, sometimes the bolt goes forward, but it pinches a paintball that is partway into the gun. All you gotta do is re-cock it, and it'll work fine. It's just one of those things that sometimes goes wrong with the -98. Somebody basically said this before me, so I agree with him.

To Empyreal: I believe that your make-shift ball detent is too rigid. It won't flex enough for the ball to get past it and out the barrel. I suggest that you make the part that sticks into the gun a little thinner and more flexible. If that doesn't work, then it probably is your C02 tank...you might be really low. Usually, when you're low on C02, the gun sputters until there is no more C02 to use...so I don't really think that is your problem. Try thinning down your ball-detent, hopefully that would work.

[paintballfreak6]

I wonder if a Lapco Power Feed or a Pro Team Products Pro Feed could solve this problem. I also have an RT and the reviews said they are good with automatic markers. Does anyone else think so?

[Empyreal Rogue]

*shakes RA's hand*

You spelt Empyreal right. Thank you. ;)

Anyway, back to the topic- I worked for a while and I made the ball latch real low profile, the hammer goes over the latch fine right now, I may thin it down some later. I think I'm really low on CO2 right now. I was fiddling around with the tank and the hissing sound (I use a remote line) wasn't as loud as it would be with a lot of CO2, so I'm quite relieved I didn't break anything, hehe.

[Bloodaxe]

No matter what your problem with a stock gun is, you should not have to buy upgrades (ex, RT trigger, nitro system, powerfeed, etc) to make a defect go away. Something is wrong with your marker, and you need to get it checked out by either a local airsmith, or the manufacturer. Don't waste your money on upgrades to solve a problem in the internals.

[-=RA=-]

Originally posted by paintballfreak6
I wonder if a Lapco Power Feed or a Pro Team Products Pro Feed could solve this problem. I also have an RT and the reviews said they are good with automatic markers. Does anyone else think so?

The Lapco Power Feed is not really for quicker feeding of paintballs (I am not sure about the Pro-Feed, I have never used it). I believe it is mainly for looks, quality of construction, and to chance the profile the gun. I personally notice no difference in the feeding of the stock elbow and the Lapco. The reason I got is, though, is I dropped my gun and the stock elbow broke. Since the Lapco is made out of aluminum, this won't happen (I have dropped my gun onto rocks....accidentally, clumsy me:| ...and the Lapco only gets scratches on it). If you want your gun to have continuous, fast feeding, I'd say get an agitated hopper. Richochet 2k, Richochet AK, 12v Revvy, Halo, HaloB...whichever floats your boat. If you have feeding problems, one of those is the best way to go.

I've never used the Pro-team Products Pro Feed, so I'm not going to comment on it. If anyone who's USED it can offer some insight, it would be appreciated.

[tonysk83]

yes what he said is true, powerfeeds do nothing, maybe a little faster, butyour best bet is a motrized hopper

[Bloodaxe]

Originally posted by tonysk83
powerfeeds do nothing

Not entirely true. For a stock tippmann 98 there is no noticable differance, as the ROF is not high enough to warrant it. If one was to put in the electro kit (don't ask me why), however, one might find that the stock feed is holding them back by a BPS or two, as opposed to the power feed.


Originally posted by tonysk83
butyour best bet is a motrized hopper

Honestly, I believe that a motorized hopper is almost a neccessity. There is nothing worse than having that perfect shot at somebody while they're turned, and then dryfireing your gun because the balls got stuck in the loader. I rarely use more than 150 rounds a day, and am certainly not a paint burner, yet I hate playing without my Revy. If only they made a 50 rnd revy hopper for my houndstooth I would be complete... :( And don't get me started about shaking the hopper to agitate it, makes far too much noise for my liking, not to mention the occasional break.

[team hessians]

powerfeeds do feed more consistenly by using a portion of the blowback to help the balls in. they also give you a higher stack of balls in your feed tube.

[paintballfreak6]

we4ll i have a response trigger which makes it like automatic and i also have a 12 volt revvy w/ an x board and a JMJ vortex propeller which is really cool by the way. So i can't understand why my gun would be pinching paintballs or why it wouldn't just chop them .