Wear Tolerances - Volvo Penta D2-55 Workshop Manual

General
Compression pressure at starter
motor speed (min. 200 rpm) ...........................................
Pistons
Piston clearance ...........................................................
Piston rings
Piston ring clearance in groove:
Compression rings ........................................................
Oil scraper ring ..............................................................
Piston ring gap in cylinder .............................................
Gudgeon pins
Gudgeon pin diameter ...................................................
Clearance, gudgeon pin – conrod bush .......................
gudgeon pin – gudgeon pin hole ................
Cylinder head
Warping .........................................................................
Engine block
Warping (head plane) .....................................................
Bore ..............................................................................
0.5 mm T.D.C. ...............................................................
1.0 mm T.D.C. ...............................................................
Crankshaft
Out of straightness .......................................................
Conrods
Straightness, max. deviation on 100 mm
measured length ...........................................................
Twist, max. deviation on 100 mm measured length .......
End float, conrod – crankshaft ......................................
Bearing clearance
Main bearing .................................................................
Big-end bearings ...........................................................

Wear tolerances

D2-55 A/B/C
min. 25 Bar
max. 0.25 mm
max. 0.25 mm
max. 0.15 mm
max. 1.0 mm
min. 27.996-28.000 mm
max. 0.08 mm
max. 0.02 mm
max. 0.12 mm
max. 0.12 mm
max. 84.2 mm
max. 84.7 mm
max. 85.2 mm
max. 0.06 mm
0.15 mm
0.2 mm
max. 0.7 mm
max. 0.2 mm
max. 0.2 mm
Group 20 Technical data
D2-75 A
min. 25 Bar
max. 0.25 mm
max. 0.25 mm
max. 0.15 mm
max. 1.0 mm
min. 27.996-28.000 mm
max. 0.08 mm
max. 0.02 mm
max. 0.12 mm
max. 0.12 mm
max. 84.2 mm
max. 84.7 mm
max. 85.2 mm
max. 0.06 mm
0.15 mm
0.2 mm
max. 0.7 mm
max. 0.2 mm
max. 0.2 mm
99