Convinced yourself...
Remove the vacuum hose to the dizzy and start your engine. Put your finger
over the vacuum hose and check for suction. Now rev the engine to about
2000 RPM and see if you still have suction.
Gerard
At 10:36 AM -0400 8/3/00, Ajhsys@aol.com wrote:
>In a message dated 8/3/00 1:54:43 AM Eastern Daylight Time,
>pixelsmith@gerardsgarage.com writes:
>
><< Actually, it's just the opposite. The vacuum is setting it to 2 degrees
> ATDC and goes away when the RPM increases, but 10 degress BTDC is correct
> without vacuum. >>
>
>- - - - - - - - - - - - - - -
>
>Let's think about this. (I'm NOT an expert, I just like to sound like one.
>I may still be incorrect.)
>
>Lets say you set the timing with a timing light whilst the engine is running
>and the vacuum line is removed and plugged, at 10 deg BTDC. Then you
>reconnect the vacuum hose. The vacuum is going to advance the timing. When
>you advance the timing, it moves further toward Before Top Dead Center. It
>advances, or fires earlier. (At least, that's how it works in my car.)
>
>Correct?
>
>Allen Hefner
>SCCA Philly Region Rally Steward
>'77 Midget
>'92 Mitsubishi Expo LRV Sport
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E A
R R pixelsmith@gerardsgarage.com
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