I HAVE A 29 MODEL A STRAIT 4 ALL ORIGINAL I HAVE A PROBLEM I CHANGE THE FAN BLADE BECAUSE HOUSING BROKE AND I PUT IT ALL BACK TOGETER AGAIN AND NOW WHEN I CONNECT THE TWO WIRES ON TOP OF ALTERNATOR ONE WIRE CONTROLS THE LIGHTS AND HORN AND THE OTHER WIRE GOES TO FIRE WALL WHERE COIL IS WITH JUST THE LIGHTS HOOK UP THE CAR TURN ON BUT AFTER A WHILE IT SHUTS OFF FOR NO REASON IT STARTS BACK UP AFTYER A FEW TIME BUT KEEPS HAPPENING WHEN I CONNECT THE OTHER WIRE TO IT THAT GOES TO THE FIRE WALL THE INSIDE METER MARK GOES TO NEGATIVE SIDE AND WHEN I REMOVE IT AGAIN IT GOES BACK UP TO CENTER AGAIN A