Hello,

I just bought a new OS RG with pul start and I was on my third tank of breaking it in. I wasn't driving the car during break in, just letting it idle. Suddenly, half way through the fourth tank, the engine stops, the flywheel won't move and when I opened it up, the piston was stuck at the very top of the sleeve. I tried to move it but it won't budge an inch.

Did I just break my engine?

Can anybody offer any insights on this? Thanks a lot!

Take a hair dryer to it to warm it up to about 150-200 degrees than give it a whirl, that should work. Also remember when breaking it in to reach temps of atleast 180-210 degrees even during idle to make sure the sleeve expands somewhat. This will ensure proper break in.

Can I ask what car did you get your pull start mounted into. I am having trouble getting it into my Hyper 7.

The RG w/ pullstart will not fit into the stock H7 engine bracket. I converted mine to a non pullstart to make it fit. You can probably modify the engine bracket to make it fit.

Seems I over looked a couple peices that came with my motor. They actually send some spacers with the pull start version I am guessing. So everything is ready to go.

You are probably right. I got my RB used and no spacers came with it. Good luck.