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Engine Compression

Disconnect wire at stop valve on injection pump. Remove vacuum pump and pump plunger. Clean fuel delivery pipes, remove pipes, and plug all openings. Remove injectors and heat shields. Place heat shield back in injector opening, followed by compression tester adapter 5191. Connect compression tester and test compression.

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio 23.0:1
Normal Compression Pressure 455 psi (32 kg/cm2 )
Minimum Pressure 341 psi (24 kg/cm2 )
Maximum Variation Between Cylinders 114 psi (8 kg/cm2 )