grober
MB Master
See post 33 or 46 on this thread[topic] There are 7 trimming resistor values which determine the ignition advance. They will vary according to engine compression/ fuel octane rating and whether the car has manual or automatic transmission. If you have lost the trimming plug for your unit best plan would be to find a similar car to yours in your country and check the trimming plug number. Could be the values talked about in post 33/ 46 but might be other?? Normally these trim resistors are connected between the ignition unit and earth so there are probably 2 connections on the plug. If you think you have the correct replacement you could then use a timing light on the front pulley/timing mark to see if you have the correct ignition timing
ps if you can find an example on another car you could remove it temporarily and measure the resistance with an electrical resistance meter [ DVM] It would then be simple to manufacture one from component resistors from an electrical repair shop- make them high wattage type
ps if you can find an example on another car you could remove it temporarily and measure the resistance with an electrical resistance meter [ DVM] It would then be simple to manufacture one from component resistors from an electrical repair shop- make them high wattage type
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