Mailing List flyrotary@lancaironline.net Message #53949
From: SLAVA HARLAMOR <slavaharlamor@sbcglobal.net>
Subject: Re: [FlyRotary] TDC
Date: Thu, 24 Feb 2011 15:03:09 -0800 (PST)
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Steve, can you contact me offline and describe how it works? May be interested in what you have.
 
Slava
Slava Harlamor

--- On Thu, 2/24/11, Steven W. Boese <SBoese@uwyo.edu> wrote:

From: Steven W. Boese <SBoese@uwyo.edu>
Subject: [FlyRotary] TDC
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Date: Thursday, February 24, 2011, 10:28 AM

Chris,

 

The attached photo shows a device that makes it easy to determine the location of the minimum combustion chamber volume (TDC) within a degree independently of any existing front pulley or flywheel markings.  Connect it to a spark plug location and just rotate the eccentric shaft to the point where the soap bubble in the clear tube is the highest.  It might be worth a try.  I made up a number of these to give away at the Paducha fly in last summer.  The lack of interest was surprising since I couldn’t even give them away. 

 

Steve
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