Mercedes: vapor lock, ballast resistor, vapor lock


Question
74 450sl  85,000 mi indianapolis  when the engine gets hot it will not restart. let it sit for a short period 45min to 1 hr. it will refire.

Answer
Answer:
Vapor lock = massive suction buildup in the fuel tank = vent is plugged, this is immediately solved by opening the fuel fill cap.


What you describe is a thermal/electrical breakdown = an electrical component failing under thermal/heat load.


Ballast Resistor
Ignition Coil
Ignition Control Unit
Ignition Points
KE Control Unit
Trigger Points