It took me all day long to find out the reason of after fire on my Super Beetle. AD motor 1600cc did not gain higher rotation, coughing and hesitating with drawing black smoke, mal-combustion. Flattening the contact point surfaces, point gap 0,35mm, ignition timing 5 degree BTDC under killing vacuum advancer had been done as usual. Though several time point flattening procedures had been tried to cover 26,000km, the life of this part must be ended, too much?
Bad habit tendency was expected when the motor did not start last morning observing metal melting bridge between point surfaces, dodge could not ever at all.
As the criminal of the problem must be in contact point module construction with worm-eaten state on the contacting surfaces including Duel Angle, tried I this morning to replace the part into new one. Then all the inconvenient condition has thoroughly wiped out, BINGO!
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