[TR] distributor advance

Tony Drews tony at tonydrews.com
Sat Feb 29 11:16:33 MST 2020


I'm not saying all advance is used at idle, but what I'm saying is that 
when all the mechanical advance is used, you're at a different advance 
setting than before (you had to change the timing after changing the 
springs, so when you do that the full advance amount changes 
correspondingly).  I'm unclear which direction it changed.  Your "at 
3200 RPM" observation would almost always be at full advance regardless 
of which springs you're using.

Stiffer springs should equate to less advance at idle than before I'd think.

Regards, Tony Drews

On 2/28/2020 8:09 PM, Peter Arakelian wrote:
> Tony, if I follow you correctly, you are saying that by changing the 
> springs I may have made it so that all the mechanical advance is used 
> up at idle and I may have no more at speed.  Where with the older 
> springs I would get mechanical advance later in the rpms and so have 
> more advance at speed.
> Would the marking on the weight of 13 degrees indicate its maxium 
> advance?  If so, I suspect I may in fact be using all the mechanical 
> at idle since my idle timing jumped past the pully markings and I can 
> only estimate a 10-15 degree jump. Maybe I should go back to the old 
> springs.
> >>The springs should just change what RPM it takes to get to full advance
> but the full advance should be the same (weights against the stops).?
> I'm a little unclear on how much you changed the timing, it sounds like
> you had to retard the timing after the spring replacement - this would
> also retard the "all in" timing, which would be what you're running at
> 3200 RPM.? It's possible it's worse at 3200 now than it was before
> because the full advance timing is now less.<<
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