<VV> Distributor....180 Degrees off

[James Davis]

Hard to feel pressure when the piston is coming up from the power 
stroke  (exhaust stroke) as the exhaust valve opens at 28 degrees 
before bottom dead center on the power stroke, even with the 889 
cam.  Otto cycle engine consist of four strokes- intake, compression, 
power, and exhaust.  Both valves are closed only during the last 72 
degrees of the compression cycle and the first 62 degrees of the 
power stroke (again using 889 cam specs @ 0.050 lift).
Jim Davis

At 05:11 PM 10/23/2006, Secular wrote:

>   I'm learning :)
>
>   If I feel pressure, the piston is either coming up from the
>   bottom of the intake stroke or coming up from the
>   bottom of the power stroke.
><snip>
>   Regards,
>
>
>   Tony
>
>   ----- Original Message -----
>   From: BobHelt at aol.com
>   To: rusecular at yahoo.com ; virtualvairs at corvair.org
>   Sent: Monday, October 23, 2006 8:27 AM
>   Subject: Re: <VV> Distributor....180 Degrees off
>
>
>   In a message dated 10/23/2006 3:15:21 AM US Mountain Standard 
> Time, rusecular at yahoo.com writes:
>     ummm...lol
>
>     Take a look at the second post at these sites:
>   Ummmm, Tony,
>   There's TDC and then...there's TDC. In fact, there are two TDCs 
> for each engine cycle. The important thing is to get the right one. 
> That's when the piston is coming up on the compression stroke.
>
>   Regards,
>   Bob Helt
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