MTU — Centrifugal oil filter - Cleaning and filter-sleeve replacement
Maintenance · Oil conditioning
From a MTU operator's manual covering: 12 V 4000 G23, 12 V 4000 G43, 12 V 4000 G63, 12 V 4000 G83, 12 V 4000 Gx3, 12/16V 4000 Gx3, 12V 4000 G23, 12V4000 G23, 16 V 4000 G23, 16 V 4000 G43, 16 V 4000 G63, 16 V 4000 G83. Check it applies to your exact model before use.
Applies to: MTU 12 V 4000 G23, MTU 12 V 4000 G43, MTU 12 V 4000 G63, MTU 12 V 4000 G83, MTU 12 V 4000 Gx3, MTU 12V4000 G23, MTU 16 V 4000 G23, MTU 16 V 4000 G43, MTU 16 V 4000 G63, MTU 16 V 4000 G83, MTU 12V/16V 4000 Gx3 engine
Before you start
- Hot oil; risk of injury and poisoning; wear protective clothing, gloves and goggles.
- Compressed air risk of injury - do not direct jet at persons.
Procedure
- Remove clamp.
- Release Tommy nut and take off cover.
- Carefully lift rotor, allow oil to drain, remove from housing.
- Release rotor cover nut and take off rotor cover.
- Remove filter sleeve.
- Measure thickness of oil residues; if exceeds 45 mm, shorten maintenance interval.
- Disassemble rotor tube, conical disk and rotor base; wash with cleaner and blow out with compressed air.
- Check sealing rings, fit new ones if necessary.
- Insert new filter sleeve with smooth paper surface facing the wall.
- Mount rotor cover with sealing ring; tighten rotor cover nut 35-45 Nm.
- Place rotor in housing and check for ease of movement.
- Fit sealing ring on housing, fit cover, tighten Tommy nut by hand.
- Fit clamp and tighten 8-10 Nm.
- Tighten cover nut to 5-7 Nm.
Tools required
- Torque wrench 6-50 Nm F30027336 Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Rotor cover nut 35-45 Amazon Nm
- Clamp 8-10 Nm
- Cover nut 5-7 Nm
- Max oil residue layer thickness 45 mm
Full service-parts list: MTU 12 V 4000 G23 →, MTU 12 V 4000 G43 →, MTU 12 V 4000 G63 →, MTU 12 V 4000 G83 →, MTU 12 V 4000 Gx3 →, MTU 12V4000 G23 →, MTU 16 V 4000 G23 →, MTU 16 V 4000 G63 →
Source: MTU 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.