Before installing an injector in an engine, remove carbon deposits from beveled seat of injector tube in
cylinder head. This will assure correct alignment of injector tube and prevent any undue stresses from being exerted
against spray tip.
Remove carbon deposits from beveled seat of injector tube in cylinder head. Exercise care to remove only
the carbon so that proper clearance between injector body and cylinder head is maintained.
Fill injector with clean fuel oil. If necessary, add clean fuel oil at inlet filter cap until it runs out outlet filter
Refer to Figure 5-12 and install fuel injector.
Make sure dowel in injector body is aligned with dowel hole in cylinder head.
Place injector clamp in place and install special washer. Install bolts and tighten to 20-25 lb ft
torque. Make sure that clamp does not interfere with exhaust valve or injector springs.
Check injector rack for free movement. Excess torque can cause injector control rack to stick or
Move rocker arm into position and secure rocker arm brackets to cylinder head by tightening bolts to
50-55 lb ft.
Tighten fuel pipe connections to 12-15 lb ft torque.
Adjust valve clearance.
Time fuel injectors.
Install rocker arm cover.