10-20-2017, 07:31 AM
Q. If you have no pop off pressure,will a carb still work ,but not real good?
A. No. The carb basically becomes a fuel leak into the engine. It might run under some conditions, but it's sort of like that broken clock: it shows the correct time twice a day.
The point of the WD-40 or Marvel oil is to cheat a bit to get a seal. After all, when the engine is running the needle doesn't need to seal AIR, it needs to seal FUEL. Even a good needle can't be expected to hold air pressure if it's dry.
A. No. The carb basically becomes a fuel leak into the engine. It might run under some conditions, but it's sort of like that broken clock: it shows the correct time twice a day.
The point of the WD-40 or Marvel oil is to cheat a bit to get a seal. After all, when the engine is running the needle doesn't need to seal AIR, it needs to seal FUEL. Even a good needle can't be expected to hold air pressure if it's dry.