It does seem as though you have done all the right things, Bruce! When
checking the advance curve, I believe the primary consideration is total
advance at a steady 3,000 rpm (after which neither the springs nor the
vacuum will add any more). Depending on your compression ratio (and 160 lbs.
cranking compression equals 9 to 1, as near as dammit) you should shoot for
36 degrees total advance, a tad less if the c.r. is higher, a couple more if
it is lower.
Hope this helps........
----- Original Message -----
To: <Lawrie@britcars.com>; <email@example.com>
Sent: Tuesday, March 12, 2002 1:46 PM
Subject: Re: Better cooling
> Distributor advance problems are a very good possibility. Have tried
> basically every other sugestion. Opened the grille (even ran without it),
> added the appropriate felt, tried 2 different radiators, (one with 2
> different cores and then a new one from Moss), cleaned out the block with
> stiff wire removing core plugs and drain petcock and properly installed
> large airhoses for the heater and the carbs.
> The vacuum mechanism appears to be working properly so the next issue is
> springs and counterweights. I have a timing light with a variable advance
> mechanism, I will attempt to plot the advance at various RPM.
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