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Home >> Toyota >> 1983 >> Pickup Base >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - Diesel >> Testing >> Injection Nozzles >> Spray Pattern

Spray Pattern

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Increase pumping speed to between 15 and 60 times per minute. At certain speeds, nozzle should "shudder" when spraying. Check spray pattern at this speed. If pattern is not correct, clean or replace nozzle. See Fig 1.

Fig 1: Injection Nozzle Spray Patterns Install tester as shown.
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