question for tx200 mrkIII owners

[tpw]

ive heard that the factory mainsprings last forever(a long time anyway). is this true?

[lillysdad621]

no spring last forever... and the tx's spring is actually under heavy stress...

[tpw]

i know not forever but quit a while is what i meant. so your saying they fail easily? ill be the second owner of it and its only 2 yrs old now. im not sure how much he shot it tho.

[daved]

no spring last forever... and the tx's spring is actually under heavy stress...

HUH?!  Where did that idea come from?  The TX mainspring has almost zero preload when not cocked, so saying it's under heavy stress makes no sense to me whatsoever.  It's about the only springer I know of that truly doesn't need a spring compressor when taking it apart.  I'll agree that no spring lasts forever, but if ever a springer was designed for spring longevity, the TX 200 is it.  Please site the source for that statement, it's news to me.  Thanks.

Dave

[tpw]

so there are easy to tear into? ive never taken one apart and eventually do want a vortek kit for 12-13fpe. but id be alittle scared to break my virginity on this gun in fear of messing something up

[GatorGunner]

no spring last forever... and the tx's spring is actually under heavy stress...

HUH?!  Where did that idea come from?  The TX mainspring has almost zero preload when not cocked, so saying it's under heavy stress makes no sense to me whatsoever.  It's about the only springer I know of that truly doesn't need a spring compressor when taking it apart.  I'll agree that no spring lasts forever, but if ever a springer was designed for spring longevity, the TX 200 is it.  Please site the source for that statement, it's news to me.  Thanks.

Dave

Dave, I found that post a bit odd myself.  Everything I have heard led me to believe that the TX200 spring has very little preload.  I have one on back order at the moment, so I did a lot of research on this gun.

[wrecktangle]

A bit off subject, and I apologize....

I read somewhere (one of the forums I belong to, maybe here?) that you can put a pellet on top of a TX 200 MkIII, fire the gun, and the pellet will not move; indicating the smoothness of the gun.

I tried it last night just for shytes and giggles...

It didn't move, at all, consistently time and time again.

Sorry....back to our regularly scheduled programming....

[s10gto]

Very easy to take apart Tom. Just put the receiver end down put a little presure on it by hand and remove the one bolt. There is only about 1/2 inch of preload on the spring.

If you go into it for lube , spring,  ect. and have any ?'s feel free to contact me.

Don't worry about the spring I got you covered. JM TX spring in stock!

[tpw]

its will be a month or so down the road. and the old owner already had a vortek in it so it will be a drop in fit

[lillysdad621]

the spring on a TX200 is not loaded heavily while the rifl is idle. In fact, is true that a spring compressor is not necessary for servicing. But saying so, and knowing the levels of performance that it puts out (mid 900s in .177 and mid 700s in .22) is only obvious that cocking requires quite an amount of compressing, and measuring the travel of the cocking slide (see bottom of rifle while pulling under lever) and then substracting  that distance from the overall lenght of the stock spring minus the number of coils times the wire diameter, shows that the spring is compressed at more than 90% of its max travel. Springs, being made out of metal, stress and fracture under pressure. the higher the pressure the deeper the damage (like taking a paper clip and bending it repeatedly, if you do it softly IT WILL LAST LONGER than if you bend it forcefully. ) when cocked it is under heavier pressure than say an R1... hence my assumption on the wear and tear of a tx spring.

[lillysdad621]

And a spring stress is continual when the rifle is not being used , which will put little wear on the spring itself. Springs break from usage, not from sitting on your rack. 25 years airgunning and the only thing that deteriorates while sitting is aa seal on a CO2 gun, and that only if not properly oiled and let it dry... it is only common sense, not rocket science, guys...

[DMikeM]

its will be a month or so down the road. and the old owner already had a vortek in it so it will be a drop in fit

Drop in only if the other owner sends his original tophat and bottom spring guide with it. Otherwise you will need new parts as the spring from the Vortek is larger in Diameter than the AA springs (at least for the B40). You can get an adjustable power Vortek BTW, go from about 11 FPE to 15 FPE with the proper weight distribution. I am currently using a Beta kit in my B40 and it has finally brought mine to 13 FPE.

[tpw]

the 70 buck adj has everything i need? im looking for around 13 myself. whats your fps?

[lillysdad621]

I got 13 fpe and mine shoots CP 14.3 at 670 fps avg.

[DMikeM]

On my .177 cal. B40 I am getting 835 FPS at 7,000 FASL. Which is about 12.2 FPE. At lower altitudes I imagine I would be at about 15/16 FPE.

[s10gto]

With stock spring , JM lube , Tesla seal , and deburr I get 700fps with 14.2 grain and 695 with 14.5.

I would think the real deal will do better.