Post by Craig Copelan on Apr 4th, 2016 at 9:38pm
I decided to use Relative Compression and a BLS in various places on the engine to help me determine where this "lost" pressure is going. Sure, I could do a leak down test, but I wanted some practice using this technique.
All of the following captures were taken with the with the Engine Cranking
2008_Ford_F-250_-_Relative_Compression-Crankcase_Pressure.png (145 KB | 217
)
2008_Ford_F-250_-_Relative_Compression-Exhaust_Pressure_Waveform__2_.png (177 KB | 203
)
2008_Ford_F-250_-_Relative_Compression-Intake_Pressure_Waveform__2_.png (230 KB | 200
)
All of the following captures were taken with the with the Engine Cranking
2008_Ford_F-250_-_Relative_Compression-Crankcase_Pressure.png (145 KB | 217
)
2008_Ford_F-250_-_Relative_Compression-Exhaust_Pressure_Waveform__2_.png (177 KB | 203
)
2008_Ford_F-250_-_Relative_Compression-Intake_Pressure_Waveform__2_.png (230 KB | 200
)