TM 5-3805-280-24-2
Fuel System Operation and Tests
115
5. Display shows: Calibrate?
20
Start engine and push ENTER.
6. Run engine at 1300 rpm. Push ENTER. Display shows:
Calibrating then Engine RPM and timing.
NOTE: If display shows NO PROBE, the magnetic
pick-up probe has not been installed properly [air
gap exceeds 0.64 mm (0.025 in.)] or there is
debris on the back of the flywheel. Check for
proper air gap or clean the back side of the
flywheel by inserting a soft wooden dowel into the
engine timing pin hole with the engine running at
low idle speed.
7. Warm engine to normal operating temperature, check
slow and fast idle rpm. (See ROTARY FUEL
INJECTION PUMP SPECIFICATIONS earlier in this
group.) Adjust speeds as necessary.
Continued on next page
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