Suburban 3/4 Ton 2WD V8-379 6.2L DSL (1986)
Injection timing
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Loosen the three pump retaining nuts.
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Align the mark on the injection pump with the mark on the front cover (straight lines).
Tighten
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Tighten pump retaining nuts to 40 N-m (30 ft.lbs.)
Use Labor Operation J5965 and appropriate Labor Time when submitting a warranty claim for this procedure.