General Specifications

Cylinder Bore Dimensions

Cylinder Bore Dimensions:

Internal dial gauge 50 to 100 mm
Measure diagonally at 3 positions transversely -A- and longitudinally -B-
Deviation from nominal size Max. 0.08 mm

Upper Crankshaft Bearing Identification

Upper Crankshaft Bearing Identification:

Crankshaft
Axial Clearance
New 0.07 to 0.23 mm
Wear limit 0.30 mm
Radial Clearance
New 0.017 to 0.037 mm
Wear limit 0.15 mm

Crankshaft Dimensions

Crankshaft Dimensions:

COnnecting Rod Bearing Shells
Axial play
New 0.10 to 0.30 mm
Wear limit 0.40 mm
Measure radial clearance with Plastigage(R)
New 0.02 to 0.06 mm
Wear limit 0.09 mm
Do not turn crankshaft when checking radial clearance

Installed position of bearing shell





Bearing shell -1- with connecting rod oil bore -arrow-
Bearing shell -2- without connected rod cover oil bore
Place bearing shells centrally into connecting rod and connecting rod cover
Dimension -a- must be the same at left and right

Piston and Cylinder Dimensions

Piston and Cylinder Dimensions:

Piston Ring Gap





Ring to Groove Clearance






Cylinder head distortion





Check cylinder head at multiple points for distortion, using straight edge and feeler gauges
Max. permissible distortion 0.05 mm