Sealik Posted July 15, 2013 Report Share Posted July 15, 2013 Was driving home the other day and the 510/LZ23 started to miss...shut if off and tried to fire it up the next morning ....zippo. What I have checked so far..... Checked resistance on the Dizzy ignition pickup....703 ohms.....good Swapped out the Blaster 2 coil for an OE within specs. Checked and cleaned all grounds (dizzy included) and elec connections Tested resistance between cap and high tension lead for coil...under 7,000 ohms...good Dizzy cap and rotor are in good shape Swapped out the HEI module Checked voltage at coil during cranking...12 volts both sides A few weeks ago I found a slight crack in the 'pickup'....upper right in pic I'd swap the dizzy out....but nothing on hand. Thoughts??? Quote Link to comment
Zeusimo Posted July 15, 2013 Report Share Posted July 15, 2013 Go To PickNSteal Zx Magnet Works Good If It Is Bad Quote Link to comment
Sealik Posted July 15, 2013 Author Report Share Posted July 15, 2013 Go To PickNSteal Zx Magnet Works Good If It Is Bad Already on it....tested the resistance on one pickup from an L6 dizzy. 710 ohms....good. They look identical...other than the wire color scheme.....2 greens instead or R/Green We shall see..... Quote Link to comment
Sealik Posted July 15, 2013 Author Report Share Posted July 15, 2013 After further inspection...the L4 dizzy is NFG...advance plates etc. Got it fired.....just need to make some more room in timing plate to adjust the L6 dizzy CCW Removed one of the two pickups in the L6 dizzy and installed the L4 reluctor...etc. Vroooom. Quote Link to comment
Sealik Posted July 15, 2013 Author Report Share Posted July 15, 2013 Well...that didn't go quite to plan. Seemed to idle okay....but soon as I accelerated on the highway it started to buck and pop. Stopped and unplugged the vacuum line between dizzy and intake....good to go. Assuming the breaker plate assembly needs a lube and or a BFH. Quote Link to comment
Silky_Johnson Posted July 16, 2013 Report Share Posted July 16, 2013 ....but soon as I accelerated on the highway it started to buck and pop. I always cringe when I have to do this kind of thing out in public. :D I like to represent to the rest of the world that old Datsuns can be reliable, and I feel like when something happens out on the road I'm just fulfilling people's expectations of my car... Quote Link to comment
Mildsquare Posted July 20, 2013 Report Share Posted July 20, 2013 I always cringe when I have to do this kind of thing out in public. :D I like to represent to the rest of the world that old Datsuns can be reliable, and I feel like when something happens out on the road I'm just fulfilling people's expectations of my car... Amen to that! Quote Link to comment
datzenmike Posted July 20, 2013 Report Share Posted July 20, 2013 I would rather chase a missing spark problem in my Datsun on the side of the road than be the other guy driving past me in a Prius......... Datzenmike July 20 2013 Quote Link to comment
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