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Old 02-27-2004, 09:37 AM   #1
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Default Bench running in

Hi i wish to try running an engine in on the bench using propellor, what size prop would you use.

thanks lemtech
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Old 02-27-2004, 10:20 AM   #2
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Default Re: Bench running in

Quote:
Originally posted by lemtech
Hi i wish to try running an engine in on the bench using propellor, what size prop would you use.

thanks lemtech
My Serpent run-in bench came with a 240 - 17 propellor.

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Old 02-27-2004, 10:29 AM   #3
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afm - how much did that cost you and where did you get it from? I've been thinking about getting one
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Old 02-27-2004, 10:56 AM   #4
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Quote:
Originally posted by rod_b
afm - how much did that cost you and where did you get it from? I've been thinking about getting one
Part N 3400 Serpent Run-In Bench. Can't remember exactly, I bought it about 2 years ago.
Try www.atomichobbies.com Speak to Phill or Anthony (owners)
Great service and prices.
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Old 02-27-2004, 11:52 AM   #5
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I was thinking about building a bench, using an old chassis and tank.

I guess I'd have to get the prop adapter from Serpent, bit it should cost a fraction of Serpents bench which goes for close to $200.
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Old 02-27-2004, 02:43 PM   #6
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what sort of routine do you use to run the engine in.
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Old 02-27-2004, 03:01 PM   #7
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Quote:
Originally posted by lemtech
what sort of routine do you use to run the engine in.
This a quote from Serpent's manual.

"Running in the engine on a run-in bench

Using the Serpent Run-In Bench (#3400) makes it a lot quicker and easier to run-in the engine. Richen the main needle by turn, and run the engine for 10 minutes at low RPM. Then run the engine for an additional 15 minutes at medium-high RPM at the same richness setting.
Install the engine in your car, and run the car through 3 more tanks of fuel while adjusting the carburetor to achieve a good top-speed."

I would add: Let the engine cool off completely between tanks, and the first tank do it heat cycling every 2 minutes.
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Old 02-27-2004, 03:06 PM   #8
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thanks
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