Still searching for the answer, engine stumbles at 50.

[48ply1stcar]

My car sat for 26 years and I was able to bring it back to life and actually drove it to work after two summers.  That was in 1997.

Now I have a rebuilt engine and I haven't been able to drive on the highway since I pulled the old engine.

I have replaced all of the ignition parts, except the little wire which shows that it has continuity.

Disassemabled cleaned and reassembled carburetor, then did a complete rebuild, found things wrong and they were corrected.

Cleaned fuel pump tried a rebuild.  valves were loose.  re-installed Airtex fuel pump with new diaphram and gasket.  Added a electric fuel pump.Each step was followed by a test drive, no change in drivability.

I have tried using the electric and mechanical pump togeather.

 

I haven't tried the electric pump by itself.  Should I remove the mechanical pump before I try a test drive?

I ordered a little distributetor wire through NAPA.  Having a $1.25 part shipped cross country.

Plan on trying a different carb, although I used the other from 1997 to 2012 without any issue.?

 

HELP.

[casper50]

My engine problems at 50mph turned out to be a weak spring on the points.  Allowed them to bounce.  New points with new spring and presto runs great now.

 

[greg g]

Thanks for updating the group.Unfortunately most points sets available these days are El Junque, offshore crud.

[Don Coatney]

This is the third thread you have started on this same problem. Suggest you tell us everything you have done so far and what all has been suggested. Or to make it easier for everyone have a moderator combine all the threads so everything is all together in one location.  

 

[Phil Martin]

I got a set of points from rock auto. Best looking points I' seen in a long time. A lot better made set than I'v e been getting from parts store.

[desoto1939]

so why is everyone purchasing the aftermarket crap and not trying to get the NOS or original Autolite points and condesors and caps and rotors.  Is the issue that they do not know the correct numbers.  Go to swap meets with you Autolite numbers and purchase the good old equipment first and have extras on hand  Also pick up the good old autolite and other manufactures catalogs so you can  get the cross reference numbers to support your car or truck.

 

Rich HArtung

[48ply1stcar]

Rebuilt the Carburator 2019, March of 2020 I found a larger main jet drove the car at 70MPH