Not Ranked
This type dist ( early GM HEI type) uses a shaft that must have the dist drive gear removed to separate the internal/external shafts------WD40 is NOT an adequte lube to properly lube the internal shaft of the advance mechanism-----This ws common symtogh back in the 60-70s on all the GM products--------timing would either resist happening and/or would not retard as RPM went up or down-----
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