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Home >> GMC >> 1985 >> Forward Control 4.8 T, Standard >> Repair and Diagnosis >> Engine Performance >> Adjustment >> Tune-Up - Diesel >> Adjustments >> Injection Nozzles - 2.2L >> Spray Pattern

Spray Pattern

Close pressure gauge. Check spray pattern by operating handle one stroke every 2 seconds. Observe spray pattern. Spray should be uniform and injected at correct angle of nozzle being tested.