[Healeys] SU Fuel Pump Repair

[Bob Spidell]

To be exactly correct, the solenoid--aka the pump 'body'--may have polarity. Some have red and black leads, some just have black. In theory, the pump works 'better' if the polarity of the solenoid is respected, but I don't know exactly why. The solenoid is wire-wound and--like a motor or generator--may take a 'set' after being one polarity for a while. 

Bob 


-------------------------------- 
Bob Spidell - San Jose, CA 

----- Original Message -----

Bi-polarity transils work as well, if not better, than diodes or caps. This guy sells them pre-wired with terminals (transils are just a few cents, but for the money these are worth it IMO): 

http://ttypes.org/ttt2/extend-the-life-of-your-su-fuel-pump-fit-a-transil 

The rest of the electrics--points, etc.--are not polarity sensitive (we are talking points-type and not SS-type, right?). 


Bob 


-------------------------------- 
Bob Spidell - San Jose, CA 

----- Original Message ----- 


I've got three fuel pumps left over after selling the car. Two need to be 
rebuilt. Does anyone know if there is a kit for rebuilding the electrics 
that ignores polarity and if so, who has them? 

Bob Johnson 
did have a BJ8