Deutz — Testing and adjusting injector opening pressure
Maintenance
From a Deutz service manual covering: BF4 M1013, BF4M 1012 E, BF4M 1013, BF6M 1013, BF6M1013. Check it applies to your exact model before use.
Applies to: Deutz BF4 M1013, Deutz BF4M 1012 E, Deutz BF4M 1013, Deutz BF6M 1013, Deutz BF4M 1013 engine
Before you start
- Beware of injection nozzle fuel jet; fuel penetrates deeply into skin and may cause blood poisoning.
Procedure
- Connect injector to nozzle tester.
- Slowly press down lever; the pressure at which gauge pointer stops or drops is opening pressure.
- Unscrew cap nut and remove all parts to adjust pressure.
- Select appropriate shim - thicker shim gives higher opening pressure.
- Tighten cap nut 40 - 50 Nm and recheck on nozzle tester.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Opening pressure BFM 1012 250 + 8 bar
- Opening pressure BFM 1013 275 + 8 bar
- Cap nut torque 40 - 50 Nm
Full service-parts list: Deutz BF4M 1012 E →
Source: Deutz 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.