Breaking in my engine
 

I cannot get this engine to run. It will run for about 1 sec then it will cut out. And when it cuts out the piston gets stuck at top dead center. I then I will get it un stuck and 1 pull on the string and it is stuck up there again. I tryed heating it up and all and it still does it. My engine is a brand new TRX 2.5r!! I need this engine to run!!

RE: Breaking in my engine
 

return the needles to factory setting, or are they already? prime it as your trying to start it, it sounds like your engine is runnin rich as heck, i would check the needles again definatly.

RE: Breaking in my engine
 

it is at factory.....but i will check them when i try it agian....but it seems to me like the sleeve is just to tight where it hasnt been ran yet.

RE: Breaking in my engine
 

My 2.5R was very hard to pull. I tried it on a starter box and it wouldn't even do it. I just had to have a friend hold the truck down while i pulled the crap out of it. Make sure you have it primed good. I thought i had mine flooded when it started for the first time.

RE: Breaking in my engine
 

OK i will try....my main concern is trying to pull it and breaking my pull starter.

RE: Breaking in my engine
 

That's what i thought was going to happen too. But it didn't break. GL

RE: Breaking in my engine
 

You could loosen the glow plug a bit and this would allow some compression to escape. I have to do this on my 7.5cc tunnel when I use an old starter, and it works great. I find this to take much less time than heating the engine up.

Just remember to tighten the glow plug up so it doesn't loosen and pop off later.

Ryan

RE: Breaking in my engine
 

What did you try heating it with? Sounds like it didn't get hot enuff to swell the sleeve any.

Ed M.

RE: Breaking in my engine
 

I tryed heating it up with a hairdryer and a heat gun.

RE: Breaking in my engine
 

heat it up to about 150 degrees crack the glow plug a little loose and try to turn in over again ... had the same prob with my rusty

RE: Breaking in my engine
 

So the plastic around the engine wont melt when I crank up the heatgun? Also I got some new tires and other things coming...is it okay to break in my engine with masher 2000's on it?

RE: Breaking in my engine
 

Before breaking in your engine, I would look over this thread. Be certain to read the whole thread as the important information follows the first few posts.

http://www.rcuniverse.com/forum/m_27...tm.htm#2786285

Ryan