Detroit Diesel — Position Injector Rack Control Levers
Adjustments
From a Detroit Diesel operator's manual — check it applies to your exact model before use.
Before you start
- Overtightening can damage injector control tube.
Procedure
- Disconnect linkage from governor speed control lever.
- Turn idle speed adjusting screw until no tension in idle spring.
- Back out buffer screw approximately 5/8 inch.
- Loosen all inner and outer injector rack control lever adjusting screws.
- Move speed control lever to maximum speed position and hold with light finger pressure.
- Tighten No. 1 injector rack control lever adjusting screw until rack clevis rolls up or effort increases; turn 1/8 turn more; lock nut.
- Check rack adjustment by pressing down on rack; it should spring back.
- Adjust remaining injectors using same procedure.
- Connect fuel rod to injector control tube lever.
Tools required
- Screwdriver Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Adjusting screw torque 24-36 in-lb (3-4 Nm)
Source: Detroit Diesel operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.