L20B Matchbox

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L20B matchbox Datsun factory Electronic Ignition came in these USA vehicles:


  • 1979 200SX (S10)
  • 1979 Datsun 510 (A10)
  • 1979 Datsun 620
  • 1980 Datsun 720


Matchbox

http://www.renderanything.com/vehicles/510/blue72_el_dizzy01.jpg


If buying used, there are two things to watch out for:


  • Advance plate bearing gone bad ($75)
  • Vacuum advance canister not holding vacuum ($30-$100)


CAUTION: These often go bad after 20 years. Inspect carefully before buying.


If buying new, you will need these used:


  • Timing plate
  • Distributor Support (pedestal base)


The support Pedestals is different than L20B points type, though looks similar the spacing is different: http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/engine/E-Series/Distributor/pedestals_c.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/engine/E-Series/Distributor/pedestals_a.jpg


Because the L-series uses an offset-slotted drive, it can be fitted in only one position. This makes getting the correct distributor, pedestal and timing plate very important. It is possible to remove and "re-index" the driveshaft inside the engine, but not recommened. It is possible to use a Z20 matchbox, but all the same problems apply. See Mismatches.