Date: 01-29-06 18:48
The above info was very useful for setting my ignition. I have received an other mail concerning my question:
Regarding your question about the 123/MG on your forum. The answer
is, once again, a bit of confusion about distributor degrees and
crank degrees. The MG spec for that engine (with Lucas distributor
number 41288) says it wants 9 degrees static timing and 20 degrees at
1000 RPM dynamic timing. The distributor makes ~9-10 degrees
mechanical advance so the in-place dynamic timing is then 27-29
degrees. The old Lucas unit would have given anything from 25-30
accounting for wear.
The best way for you to check the timing is with an advance timing
light. Set the advance dial to 27 degrees, run the engine up to 3000
RPM and turn the distributor until the TDC mark is in the strobe.
With the 123/MG static timing feature (ie the LED) this should
already be correct.
Edmonton Alberta Canada
+1 780 415 1013
May be this is of help to other customers.