Need help tmax 2.5

[Certified Mike]

There's should be no rtv anywhere inside of the carb. You can put a VERY light bead where the carb meets the intake on the engine but that is it. Any other sealant anywhere in the carb needs to be removed 100%.

All sealant should be very light and should have no way to enter the engine case itself. You do not want little pieces of rtv bouncing around inside of there. It will do damage for sure.

https://www.rcnitrotalk.com/forum/threads/nitro-tuning-tips-and-tuning-flow-chart.60832/#post-726317

That is what you should follow. Read it carefully a few times and make sure this is what you have done. If not, open the engine back up and clean it out. Do the job again. Fortunately it's not a terribly difficult job!

 

[Wormstud97]

There's should be no rtv anywhere inside of the carb. You can put a VERY light bead where the carb meets the intake on the engine but that is it. Any other sealant anywhere in the carb needs to be removed 100%.

All sealant should be very light and should have no way to enter the engine case itself. You do not want little pieces of rtv bouncing around inside of there. It will do damage for sure.

https://www.rcnitrotalk.com/forum/threads/nitro-tuning-tips-and-tuning-flow-chart.60832/#post-726317

That is what you should follow. Read it carefully a few times and make sure this is what you have done. If not, open the engine back up and clean it out. Do the job again. Fortunately it's not a terribly difficult job!

i really didnt want to do that again but i think there is some in the motor. And ill read thar before i seal the motor back up

 

[Certified Mike]

Read the comments below that post as well.
Also, just as a helpful hint... You are going to want to use a SMALL screw driver to do your carb needle adjustments... This gives you a much better feel for when the screws are tight. It should help you to avoid stripping them out again. No need for any kind of force when adjusting them... AT ALL.

If you even think you sealed it incorrectly, you really don't want to chance it. It isn't going to take that long to fix it now. But if you rebuild the truck and find there are issues, even if you don't blow up your motor, having to take the whole truck apart to redo it again is so much more work... Imo, it's just not worth the chance. I'm sorry to be giving you bad news, I know you've been working hard. This is all part of learning the nitros. We have ALL made mistakes here. Some a lot more costly than others! You really are doing great!

 

[olds97_lss]

RTV inside the engine isn't as bad as inside the carb. Very easy to plug a needle or hamper it's flow if your not careful with the rtv.

 

[Wormstud97]

Dont be sorry. Lol thank you i redid the sealing job didnt use any rtv. Lol i lost the little spring that goes in piston. But i mange to make one from a small spring i had

 

[Certified Mike]

I would prob still use the rtv, just use it bee sparingly as directed on the post. Def no rtv in the carb tho! And when you go to do the rubber seals in the carb, you would want to use the green slime (which is a lubricant) and it will help seal everything nicely and get the rings to seat properly in the carb with the needles. Again, I recommend you read, read, read! Understand all of the work you are doing so when you need to make adjustments or something seems funky, you'll know just what is going on and how to handle it.

 

[cbaker65]

I use a tooth pic to apply ,an I only upply a small amount at the upper part of the carb throat ,not
beyond past the pinch bolt!...

 

[Certified Mike]

Btw, do be 100% sure that the spring you made up fits and stays and does everything it is supposed to do. I can't imagine a spring is gonna cost more than a few dollars to replace... The point is that if that spring should come loose, it will likely do severe damage to the engine internals... Of there is even a tiny bit of question about it being/fitting/working right, replace it with a new one!
I thought I should mention this as well... I know on the traxxas 3.3 engines, the piston can fit in both ways... BUT it is notched and is supposed to be installed 1 way... It will mess up the way your engine runs etc... I do not know about your engine, but I would make 100% sure about that as well.