Dizzy in bits, oops

[bmcecosse]

Ahh -well, 16 is not 17 - but near enough! And yes - does look like dizzy revs advance there Alec. Yes - there is a huge variation in the advance curves - one might imagine each one was carefully optimised by BMC after many sweaty hours over a hot dynamometer...... However - as I have suggested before (ad infinitum...) - the figures mean nothing now with very different fuel we use these days. And so the best we can do these days is to set the dizzy up so the engine is 'just not quite' pinking when the foot is placed on the floor in top gear..... That 16 degree dizzy is handy because it will allow the static advance to be set at just 2 or 3 degrees = easy starting!

[Alec]

Hello BMCE,

yes, and as I have replied before, the fuel doesn't determine the curve, the engine does. The static timing may be different than of old, but that doesn't mean the engine characteristic has changed.

Alec

[GPO_Van]

The nylon washer mentioned earlier in the post[frame][/frame][frame][/frame]
Second photo shows position on shaft

[bmcecosse]

I suggest you write up a 'how to' with pics on dizzy maintenance - and perhaps the Mods can be encouraged to make it a sticky!

[GPO_Van]

Hi bmcecosse
I have had a look at the photos I have already taken and with what I take on the rebuild I should have enough to do a “how to strip a dizzy”
Thanks for the suggestion, time for me to pay back for all the good info I have received from the group.
Reg

[bmcecosse]

Would be useful I'm sure - especially if you include Points fitting and gapping, Condenser fitting, and the hazards of the little 'low volts' wire.