Detroit Diesel — Remove Injector
Repair & overhaul · Fuel injector
From a Detroit Diesel service manual — check it applies to your exact model before use.
Before you start
- If a wrench is used on the crankshaft bolt do not turn left-hand or the bolt will be loosened.
Procedure
- Clean and remove the valve rocker cover.
- Disconnect the fuel pipes from both the injector and the fuel connectors.
- Cover injector inlet and outlet fittings with shipping caps.
- Turn crankshaft until the rocker arms for the cylinder are horizontal.
- Remove the two rocker shaft bracket bolts and swing the rocker arm assembly away.
- Remove the injector clamp bolt, washer and clamp.
- Loosen the inner and outer adjusting screws on the rack control lever and slide the lever away.
- Free the injector from its seat and lift it from the cylinder head.
- Cover the injector hole in the cylinder head.
Specs & values
- Fuel pipe nuts 12-15 Amazon eBay FridayParts $19.30 lb-ft (16-20 Amazon eBay FridayParts $14.38 Nm)
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.