Detroit Diesel — Fuel Injector Line Installation
Installation · Fuel injector line / transfer tube
From a Detroit Diesel service manual — check it applies to your exact model before use.
Before you start
- NOTICE: Never use pliers or sharp-edged tools to bend injector lines; bend by hand if needed.
Procedure
- Tighten the thrust bolt using torque wrench adaptor J-45063 to 45 N·m (33 lb·ft).
- Install the injector line nuts finger-tight at both ends.
- Using adaptor J-45062 tighten the injector line nut at the transfer tube and adaptor J-46371 at the unit pump to 30 N·m (22 lb·ft).
- Install the cylinder head cover(s) as removed (refer to 1.1.2).
- Prime the fuel system (refer to 11.1.5).
- Run the engine, check for leaks and tighten connections as needed.
- Shut down the engine and install the remaining components.
Tools required
- J-45062 injector line torque wrench adaptor Amazon
- J-46371 wrench adaptor Amazon
- J-45063 thrust bolt torque wrench adaptor Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Thrust bolt: 45 N·m (33 lb·ft)
- Injector line nuts: 30 N·m (22 lb·ft)
Source: Detroit Diesel service 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.