My New Cox Babe Bee

ebeneezer Mon May 06, 2013 5:12 am

I know this is a silly question but I need to Know. I've just re-built a Babe Bee new crank case and crank and 5 fin head, see pic. I dont Know, but I think the tank may be leaking. What's the the best way to check? Soapy water and pressure? How long should a Babe Bee on %25 nitro run, I suspect mine though seeming to run great, cuts out early. Is this because it's being bench run, and maybe overheating?

Cheers Flying

SuperDave Mon May 06, 2013 8:52 am

The usual suspects some to mind: clogged needle seat, missing ventiri or crankcase gasket, reed valve problem. If the tank were leadking you'd see fuel dripping from it when it was full.

Sometimes in an effort to make an engine look "pretty" the obvious is overlooked. Surprised

Your "run time" should be in the three minute range if everything is satisfactory.

SD

**Cribbs74** Mon May 06, 2013 8:57 am

Pressure test it. Close the NV, put your finger over the overflow, pump air into the fill tube using fuel hose and a syringe.

pkrankow Mon May 06, 2013 9:55 am

So...did you make your own gasket for the tank to the case? If you used a cast case gasket then the screws do not have a seal around them and crank pressure is going into the fuel tank and/or fuel is leaking into the case.

Phil

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