My T-Maxx's 2.5 head might be bad
I think I've located the source of my T-Maxx's irratic idling problem. While it's running, you can watch fuel bubbling out around the glow plug. I think I can rule out a bad glow plug and the brass glow plug rings because I've tried several different ones and it happened with all of them. I know I'm getting the plugs in tight enough without over torquing them. I think I've ruled out everything down to the head. The only thing I can think of is the glow plug mounting surface on the head wasn't formed correctly, allowing compression to leak out around the head. I don't know what else it could be.