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Discussion Starter #1
hi there, i bought Model98 gun from my friend for £30 ($52), and it hadnt been cleaned since he`d had it, which must of been 4 months.
when i got home i noticed that the Rear Bolt seemed that it was sticking to something, thinking nothing of it i took the gun apart cleaned all of the insides out and and put everything back in again.
it seemed that nothing was wrong untill, i cocked and fired to see if everything was in correctly, when i fired it sounded like it was hitting metal instead of the air forcing sound it should be making.
could it be something simple that ive not realised or something serious?

thanks for your help!!

Luke
 

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Screaming Koala
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Is it working, other than sounding bad?

Tippmanns make a fairly metalic sound when they cycle, ping and all.
You might have a look at the exploded view from the manual (tippmann.com will have them for view if you don't have one handy) to see if everything is there.

Off hand though, a missing bumper ring behind the rear bolt could make it a little louder, although it probably won't harm anything. A backwards ball detent in the front will catch on the front bolt and stop the firing cycle. That'll give you more of a "whump" sound than a metal noise.
 

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Discussion Starter #3 (Edited)
thanks for answering so quickly, yes it does work, but only sometimes, i have to cock it 5-6 times for it to work once, but when it does fire, its normal, then its back to cocking 5-6 times sometimes more, somthing tells me that the Power Tube isnt fitting properly. it only makes the sound when the rear bolt hits the valve.

its a pain becuase its my first gun and i dont want to have to buy a new one just because of this!
 

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try lubing the bolt and hammer this will reduce the "sticking to something" feeling and what do umean cock it 5-6 times?
like it doesnt catch the sear the first time?
if so your sear mite b worn down
 

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Discussion Starter #6
ill try the lubing, but by cocking i mean that ill cock it,then fire, cock it then fire, 5 or 6 times, and it will just missfire, but occassionally it will work, thats whats puzzleing me
 

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Discussion Starter #8 (Edited)
it missfires x10 more than it fires, which aint right.
torch, i just looked through the manual and on my gun, im not sure that i have a Buffer-o-ring, in front of the End cap, but i dont think it has anything to do with it, as its only when the bolt strikes, its as if its not able to hit the valve sometimes
 

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look at the ball latch in the front .... and the rear bolt o ring... if it works some times and not others the ball latch may be in backwards... i think that was what was wrong with mine. that and the rear bolt oring ... those would be the 2 majors that would stop the cycle
 

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Discussion Starter #10
right i think ive narrowed it down to 2 things!
1.Rear Bolt hitting something metalic inside.
2.the o-ring on the front of the rear bolt, is too slack and needs changing.
if its the o-ring, do i need tippmann ones, or can normal ones work?
 

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Discussion Starter #11
Right! just an update! i went to my friends and took the o-ring off his rear bolt, and suprise suprise! it works!! :) but now the only problem is that once its fired it doesnt re-cock!! :( Any suggestions?
 

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Screaming Koala
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It certainly could be something else. Hopefully it isn't anything too complicated.


Anyway,

Yep, the small orange V thing is the detent.

If its backwards it can catch the front bolt when the gun cycles. It'll slow down the front bolt, the link arm, and the rear bolt that hits the valve. If it doesn't hit hard enough to open it fully, it's likely to not blow back into the cocked position.

Basically it's a V shape. If it's in right, it'll just fold under the bolt as it comes forwards. If its backwards, it'll expand upwards infront of the bolt and stop it early.

Like I said in the post above though, it's fairly easy to pick out even if you don't look for it. If you shoot without gas, and it's backwards, you'll get a sort of 'whump' sound instead of the satisfing 'clack' a healthy 98 should make.

I just look at it as a design flaw, like the front sight spring....Goofy little things that you just adapt to after a while.
 
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