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Brit01 Gold Cloverleaf
Joined: 24 May 2010 Posts: 665
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Brit01 Gold Cloverleaf
Joined: 24 May 2010 Posts: 665
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Posted: Wed Jan 30, 2013 12:02 am Post subject: |
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removed the top plates(interruptor and stator).
inspecting the springs.
The secondary spring is thinner than the one I have from John!
Total advance measures 15/16+ degrees on the protractor! There seemed to be some wear on the end stops.
That's ~30 + 8 = 38+
I have the static at 7 now to reduce the detonation a little.(but not good for idling - warms up fast)
38+ is a bit extreme.
Well I'll get John's springs in. Probably the thicker spring will help to reduce that detonating at 3000 rpm range.
I also moved the weights stops in just a touch to bring down the total advance a little.
Bit of trial and error will probably be needed here to get the right curve with no detonation, and a good static idle advance (with vacuum advance connected also) _________________ S2 33 1988 1.7 QV
Dellorto DRLA40 (32mm venturi) |
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Brit01 Gold Cloverleaf
Joined: 24 May 2010 Posts: 665
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Posted: Thu Mar 14, 2013 3:56 pm Post subject: |
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I added some pre-load to the second spring and 100% improvement.
Now I can dial in 8-9 degrees static and WOT no detonation.
I see the advance increases slower with the timing light which is what I wanted.
Even with the vacuum attached all runs nice now.
Maybe I've lost a tiny amount of power but really I've gained power as it doesn't detonate anymore.
detonation= loss of power and engine damage. _________________ S2 33 1988 1.7 QV
Dellorto DRLA40 (32mm venturi) |
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