hookem34

iTrader: (17)

So this weekend I somehow managed to blow my Traxxas 3.3 engine. I have exactly one gallon through it and did the break in by the book(or traxxas DVD). The connecting rod split in half and the piston blew a hole in the top of it. I ran it about 30 minutes with no problems prior to it blowing up. Temp never got above 240 and it had plenty of smoke coming out of the pipe. When I took it apart I was surprised to see that the sleave and crank are totally fine (no scaring at all).

What I want to know is if you guys think this is a manufacturer defect or something I did wrong. This is my first nitro truck and needless to say I am a bit surprised by this. Thanks.

grouseridge

Call Traxxas and tell them the story.
They have great customer service.

hookem34

iTrader: (17)

I will be contacting them in the morning. Just curious as to what others think or have experienced with this engine.

cassidy

iTrader: (4)

I believe this is a common problem for the 3.3, if they replace it, I would strongly recommend upgrading to the davis deisel conrod after break in

Franchise

iTrader: (2)

Exactly. I raced 3.3's for 4 years. It's a common problem although in your case it happened early. I would strongly recommend getting the diesel connecting rod or getting a new rod to install after break in. The 3.3 is a durable and reliable engine.

Once, my hsn worked loose during a race and caused the engine to run very lean. That motor temped at over 400 when it stalled. Initally my temp gun read HI. My glow plug was black. I tried running the engine and it continued to run reliable for two more gallons until i finally imploded. I won a championship with that engine.

mudboger07

X2

bigde2001

iTrader: (10)

Had a hobbyshop for 3 years now and I have seen it happen 3 times.

Franchise

iTrader: (2)

i've seen happen twice.most of the time i hear about a 3.3 failingit's the rod.

MontanaMaxx

iTrader: (12)

it is a common problem i got tired of dealing with it and went with os motor but the 3.3 is a good motor