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RCV120sp question for Keith from Keith

Old 06-03-2009, 09:02 AM
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ktcanuck
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Default RCV120sp question for Keith from Keith

I believe someone asked this before but it wasn't fully answered. I am about to mount one in a TopFlite Bonanza. The Bonanza nosewheel is offset to starboard. I would like the exhaust exit on the port side so I have more room to route the exhaust internally without conflicting with the nosewheel mount or cowl.

I guess the first observation is about that crankcase vent. It looks like it must be mounted close to the bottom so oil doesn't build up in the crankcase. What tolerance can be applied to the mounted orientation of the crankcase vent?

Second question is whether you can separate the cylinder assembly from the crankcase and rotate it 180 degrees so the exhaust is on the right, carb on the top and vent on the bottom - all looking from the front. Can the timing be maintained?

Answers much appreciated soonest - I am at engine mount stage right now!

Keith
Old 06-03-2009, 07:16 PM
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rcbill58
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Default RE: RCV120sp question for Keith from Keith



I believe someone asked this before but it wasn't fully answered. I am about to mount one in a TopFlite Bonanza. The Bonanza nosewheel is offset to starboard. I would like the exhaust exit on the port side so I have more room to route the exhaust internally without conflicting with the nosewheel mount or cowl.

I guess the first observation is about that crankcase vent. It looks like it must be mounted close to the bottom so oil doesn't build up in the crankcase. What tolerance can be applied to the mounted orientation of the crankcase vent? In my experience there is no restriction on the orientation of the vent, only that the vent hose be as short as possible and of the largest diameter practical.

Second question is whether you can separate the cylinder assembly from the crankcase and rotate it 180 degrees so the exhaust is on the right, carb on the top and vent on the bottom - all looking from the front. Can the timing be maintained? The cylinder can be rotated to any of 4 rotational positions, but the gears must be timed as described in the owner's manual.

Answers much appreciated soonest - I am at engine mount stage right now! Happy Flying!!

Keith



Best Regards, Bill Jensen



BJ's Model Engine Service*, 51 Hillside Dr., Beacon Falls, CT 06403
phone: 203-888-4819, email: [email protected]
www.bj-model-engines.com
*a trade name of Flight Star Devices, Inc.



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JBA www.kangkeUSA.com
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Old 06-04-2009, 06:52 AM
  #3  
ktcanuck
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Default RE: RCV120sp question for Keith from Keith

Excellent. Thanks Bill.

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