RunRyder - OS 50 Hyper

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Audacity Models Pantera 50 - Tiger 50 > OS 50 Hyper

garyloos
Heliman
Location: West Lafayette, Ohio

I am using a OS 50 Hyper on my Pantera and was using 15% nitro. I purchased 5 gallons of 30% and switched over. I did richen the mixture but not enough, I had plenty of smoke until I heard a pot and the engine quit. Luckily I was close to the ground and did no damage to the heli. I pulled the head and saw a hole in the top of the piston. I have a new engine coming Tuesday and planning to send my engine to Hobby Services for repairs.

Gary

04-20-2008 06:40 PM

MartyH
Key Veteran
Location: Lawrenceburg, Indiana

Glad you saved the helicopter. Sadly the holed piston is a common occurance. Did you scuff the cylinder too or did it pop the piston and stop so quick it didnt hurt the cylinder? Its about $90 to replace piston, ring and liner.

Marty,
Raptors,Evos, Panteras and more

04-20-2008 08:08 PM

garyloos
Heliman
Location: West Lafayette, Ohio

I did not pull the piston out to see just pulled the head and saw hole in top of piston. When I pulled the back plate off there was a chunk of metal in the groove where the rod turn at the crank. Not sure how bad everything is scored up.

04-20-2008 10:56 PM

billm
Key Veteran
Location: Liberty Lake, WA

I had a Hyper go bonkers last year. The chicken dance did it in.
Belive or not. I sent it back to OS for repair and I was only charged for S/H of a replacement motor. Two week turn around time.

My name is Billm. Cough, and I'm a Heli Holic

04-21-2008 12:13 AM

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Audacity Models Pantera 50 - Tiger 50 > OS 50 Hyper

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