|
Hi pistonbroke, a vacuum gauge will not measure any vacuum on a diesel engine. The reason is simple, diesel engines do not have a throttle valve. Since there is no restriction between the engine and the atmosphere, there is no negative pressure to register.
Know, if the diesel engine has a turbo charger, you may use a pressure gauge to measure the boost, indicative of the load of that engine. But if the engine is naturally aspirated, there is no way using vacuum or pressure gauges, that you can measure the engine load.
__________________
|