04-12-2020, 10:40 PM
Did you check the temperature at the confluence of your four bananas? Conduction throughout the manifold would tend to equalize the temperature of the four branches over time, so for number four to be that much colder its exhaust gases would need to be actively cooling it down (ie < 95°C).
My guess is it's either a reading error or you're running on three cylinders.
If you put your hand over the exhaust tail pipe are you getting unburnt fuel coming through? An unburnt mixture would cool the pipe down.
My guess is it's either a reading error or you're running on three cylinders.
If you put your hand over the exhaust tail pipe are you getting unburnt fuel coming through? An unburnt mixture would cool the pipe down.