well pat i actually just did some tinkering with my LRP (you read my thread in the engine forum yeah) and got it running from the bump box i have, took the OWB out of it, sealed the back plate up with a bolt and some high temp gasket sealant and filed out my chassis to get the wheel on the box to fit trough the chassis, and pulled the 12 volt bat out of dads car which gave it enough balls to turn over the LRP, run it today all day and all is fine, i don't think i'll be buying an engine with a one way bearing in it again, i just hope the con rod doesn't snap where the chunks were taken out of it by the OWB...

the box is an ansmann racing box, $85 aussie.. cheap