Injection Pump Inlet Restriction
- Connect Pressure Test Kit (19-0002) or equivalent. Disconnect fuel inlet at injection pump. Install Adapter Tee (10575) in fuel line. Connect fuel line to tee. Connect tee to vacuum gauge.
- Run engine at 4000 RPM under no load. Vacuum should be less than 3 in. Hg. If not, check fuel lines for restrictions.