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l20b ignition system woes


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my 1980 reg cab bogs real bad. thought it was the carb at first, i had an issue with the float bowl previously so i assumed that was acting up again. Once i verified that the carb wasn't doing anything funky i turned my attention to the ignition system. Cleaned the cap and rotor, checked the plugs, it made a bit of a difference. ended up getting new plugs, wires, cap, and rotor. this fixed it for a week. now its doing the same thing again. could my distributor be bad? i'm going to see if i can pick one up at the local u-pull-it. the truck just hit 100k.

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Always ck the timming first. then ajust the carb if at all.

 

most distributors are pushing 40years old the bushings wear also and the springs mayb break or just dist bolts gets loose and goes out of time.

 

maybe a valve is starting to get tight. Rechaeck the valve lash.

 

I think 100k still be good but I have gone thru a few distributor over the years. Last one the vacuum advance is locked up. see if moves.

 

 

PS I haven't replace a Cap in years. I sand blast my old plugs. .

 

 

go to olddatsuns.com Datsun tech. save this and read

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