TA21 Distributor micrometer adjustment

For all TA 21, TB 21, TC 21 and TC 21/100 cars
Posts: 360
Joined: Mon May 21, 2012 10:14 am
Name: Richard Wallach
Location: Melbourne, Australia

TA21 Distributor micrometer adjustment

Postby RichardWallach » Thu Mar 12, 2015 9:24 am

The micrometer adjustment on the distributor has quite distinct segments stamped into the shaft. What I am seeking is the number of degrees (either advance/retard) that each segment represents.


Posts: 35
Joined: Sat Nov 10, 2012 10:15 pm
Name: Jon Whittle

Re: TA21 Distributor micrometer adjustment

Postby drdowhitt » Sun Mar 15, 2015 10:26 pm

I think that each division of the scale represents 2 degrees of distributor rotation (equivalent to 4 degrees advance / retard at the crankshaft since the rotor arm turns at half crank speed). But I have never checked it out!

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