nissan720 Posted December 12, 2018 Report Share Posted December 12, 2018 where can I get a new vacuum advance for my 1979 Datsun with lb20 engine. tried the local parts store with no success. any help is appreciated thanks in advance it has the black box on side of the distributor. electronic module Quote Link to comment
datzenmike Posted December 12, 2018 Report Share Posted December 12, 2018 Best bet is from an old L20B distributor. Suck on the hose to the advance mechanism (make sure the hose is not cracked) and the rotor should turn clockwise about an inch and hold till you release the suction. If it does this it is presumed to be doing it's job. Quote Link to comment
nissan720 Posted December 12, 2018 Author Report Share Posted December 12, 2018 Thank you Quote Link to comment
nissan720 Posted December 13, 2018 Author Report Share Posted December 13, 2018 tried that today and its is defective would not hold.next question where can I get one? Quote Link to comment
datzenmike Posted December 13, 2018 Report Share Posted December 13, 2018 On 12/11/2018 at 7:19 PM, datzenmike said: Best bet is from an old L20B distributor. Suck on the hose to the advance mechanism (make sure the hose is not cracked) and the rotor should turn clockwise about an inch and hold till you release the suction. If it does this it is presumed to be doing it's job. Try an ad in classifieds. It isn't big, so shipping is no biggie. There was a different advance for every year, auto, manual, California, federal on and on ... The engines are the same and better one from something than none at all. Quote Link to comment
nissan720 Posted December 14, 2018 Author Report Share Posted December 14, 2018 okay thank you Quote Link to comment
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