Is my engine cooked?

[drdoom405]

So recently my engine has been stalling after the first tank of fuel has been ran through it. First tank it runs fine. After its shut off it starts fine but will die when going off throttle unless it is ran hard for a couple minutes. Its also becoming very hard to tune, requiring adjustment pretty much every tank...any ideas?

 

[Rolex]

Air leak.

 

[moe7404]

my t-maxx 3.3 likes to be hot in order to run good.

 

[drdoom405]

I just got done fixing an air leak about a half gallon ago. I'm about sick of these traxxas engines. I wish there was a good replacement that didn't cost 300 bucks...

 

[drdoom405]

I tore the mill out this weekend and found a large leak between the crankshaft and the front bearing..Apparently my Integy clutch is was causing this somehow..I reinstalled it a couple times but no luck. Installing the stock clutch almost cures the leak. Well enough for the engine to run properly anyway.

Anybody know how hard it is to change the front bearing? I'd like to order one from boca bearing...