Volvo Penta D2-55 Workshop Manual

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Group 20 Technical data
Wear tolerances
D2-55 A/B/C D2-75 A
General
Compression pressure at starter
motor speed (min. 200 rpm)........................................... min. 25 Bar min. 25 Bar
Pistons
Piston clearance ........................................................... max. 0.25 mm max. 0.25 mm
Piston rings
Piston ring clearance in groove:
Compression rings ........................................................ max. 0.25 mm max. 0.25 mm
Oil scraper ring.............................................................. max. 0.15 mm max. 0.15 mm
Piston ring gap in cylinder ............................................. max. 1.0 mm max. 1.0 mm
Gudgeon pins
Gudgeon pin diameter ................................................... min. 27.996-28.000 mm min. 27.996-28.000 mm
Clearance, gudgeon pin – conrod bush ....................... max. 0.08 mm max. 0.08 mm
gudgeon pin – gudgeon pin hole ................ max. 0.02 mm max. 0.02 mm
Cylinder head
Warping ......................................................................... max. 0.12 mm max. 0.12 mm
Engine block
Warping (head plane) ..................................................... max. 0.12 mm max. 0.12 mm
Bore .............................................................................. max. 84.2 mm max. 84.2 mm
0.5 mm T.D.C. ............................................................... max. 84.7 mm max. 84.7 mm
1.0 mm T.D.C. ............................................................... max. 85.2 mm max. 85.2 mm
Crankshaft
Out of straightness ....................................................... max. 0.06 mm max. 0.06 mm
Conrods
Straightness, max. deviation on 100 mm
measured length ........................................................... 0.15 mm 0.15 mm
Twist, max. deviation on 100 mm measured length ....... 0.2 mm 0.2 mm
End float, conrod – crankshaft ...................................... max. 0.7 mm max. 0.7 mm
Bearing clearance
Main bearing ................................................................. max. 0.2 mm max. 0.2 mm
Big-end bearings ........................................................... max. 0.2 mm max. 0.2 mm

Volvo Penta D2-55 Specifications

General

Engine Type	Diesel
Number of Cylinders	4
Power Output	55 hp
Aspiration	Naturally aspirated
Alternator	115 A
Fuel System	Direct injection
Bore x Stroke	84 mm x 100 mm
Cooling System	Freshwater cooling with heat exchanger
Width	523 mm
Displacement	2.2 l (134 cu in)