Deutz — Engine Preservation
Maintenance
From a Deutz owner's manual covering: F 3L 912, F 4L 912, F 5L 912, F 6L 912, F3L F4L F5L F6L. Check it applies to your exact model before use.
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Procedure
- Clean outside of engine with diesel fuel or benzine.
- Drain engine oil in hot condition and fill in corrosion inhibitor oil.
- Pour oil out of air cleaner bowl, clean bowl and fill in inhibitor.
- Drain fuel from tank, mix well with 10% inhibitor and fill back into tank.
- Drain oil from injection pump and governor and refill with corrosion inhibitor oil.
- Run engine about 10 minutes so pipes, filter, pump and nozzles are filled with preservative mixture.
- Detach rocker chamber covers and lateral cover of injection pump; spray rocker chambers and spring chamber with mixture of diesel fuel and 10% anti-corrosive or injection pump testing oil; refit cover
- Turn engine over several times without firing to spray mixture into combustion chambers.
- Detach V-belts and spray pulley grooves with corrosion inhibitor; remove inhibitor before reusing engine.
- Tightly close openings of oil bath air cleaner intake and exhaust pipe.
Source: Deutz owner'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.