<VV> LM ignition/distributor timing

[Harry Yarnell]

Either your idle is too high, or the vacuum line's on the wrong port. There 
should be no vacuum advance at idle. The horizontal port on the carb is for 
the choke pulloff; the vertical port is for the distributor advance.

Harry Yarnell
Perryman garage and orphanage
Perryman, MD
hyarnell1 at earthlink.net
----- Original Message ----- 
From: "The Barneck's" <dougbee at comcast.net>
To: <virtualvairs at corvair.org>
Sent: Tuesday, July 01, 2008 12:03 AM
Subject: <VV> LM ignition/distributor timing


>I am working on a 65 140.  the book says initial timing 18 BTDC, 22 degrees 
>vacuum advance @14 HG, and 18 degrees @2800 RPM.
>
> I have it set at 8 degrees initial timing.  I get 18 degrees advance at 
> 2800 rpm.  I am getting the 4 degrees of centrifical advance at about 1200 
> rpm.
>
> My problem it I get engine rattle when first starting out (which is why I 
> retarded the timing to 8 degrees initial timing).  idle RPM looks to be 
> about 900 (a little too fast).  The problem is when I hook up the vacuum 
> advance line at idle, the timing jumps about 8-10 degrees in advance.
>
> Any ideas what I should be looking at?  what is causing the vacuum advance 
> to work at idle?
>
> Doug Barneck
> back from the national convention and having to work on my son's corvair 
> some more...
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