Deutz — Reassembling engine crankshaft bearings
Repair & overhaul
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
Procedure
- Insert bearing shells in main bearing caps.
- Place half thrust rings on thrust bearing cap, gauge and record width (dimension b).
- Determine end float = dimension a - dimension b.
- Mark crankshaft and camshaft and introduce crankshaft with marks in line.
- Mount bearing caps per numbering; cap No. 1 at flywheel end.
- Tighten main bearing bolts: initial 30 Nm (1012) / 50 Nm (1013), 60°, 60°.
Tools required
- Internal dial gauge Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Permissible end float BFM 1012 = 0.10 - 0.30 mm
- Permissible end float BFM 1013 = 0.10 - 0.30 mm
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.