Volvo Penta MD22 User Manual

1
Engine repair
Marine Engines
MD22 • TMD22 • TAMD22
Contents
General Information
Safety Information ............................................. 3
General Information .......................................... 6
Repair instructions ............................................ 7
Special tools ....................................................... 10
Identification Numbers...................................... 12
Introduction to the engine ................................ 13
Cylinder head
General................................................................ 16
Repair Instructions
Camshaft cover, replacement (12A-01) .............. 17
Valve clearance, check (12A-02) ........................ 18
Valve clearance, adjustment (12A-03) ................ 19
Front sealing ring, replacement (12A-04) ............ 21
Rear sealing ring, replacement (12A-05) ............ 22
Camshaft, replacement (12A-06) ........................ 23
Cylinder head assembly, replacement (12A-07) . 24
Valves and valve springs, replacement (12A-08) 28
Valves and valve springs, inspection (12A-09)... 29
Valve guides, inspection (12A-10) ...................... 30
Valve guides, replacement (12A-11) ................... 30
Cylinder head, inspection (12A-12) ..................... 31
Valve seats, grinding (12A-13) ............................ 32
Valve seats, replacement (12A-14) ..................... 33
Piston and connecting rod assembly
General................................................................ 34
Repair Instructions
Big ends, replacement (13A-01) .......................... 35
Big ends, inspection (13A-02) ............................. 36
Piston and connecting rod assembly,
replacement (13A-03) .......................................... 36
Piston rings, replacement (13A-04)..................... 39
Piston and connecting rod,
assembly / dismantling (13A-05)......................... 40
Piston and piston rings, inspection (13A-06) ...... 41
Connecting rod, inspection (13A-07) ................... 42
Connecting rod bushing, replacement (13A-08).. 42
Crankshaft assembly
General................................................................ 43
Repair Instructions
Crankshaft pulley, replacement (14A-01)............ 44
Front sealing ring, replacement (14A-02) ............ 45
Rear sealing ring, replacement (14A-03) ............ 47
Crankshaft axial clearance, checking (14A-04) .. 48
Thrust bearing, replacement (14A-05) ................ 48
Main bearings, replacement (14A-06) ................. 50
Main bearings, inspection (14A-07)..................... 51
Crankshaft, replacement (14A-08) ...................... 52
Crankshaft, inspection (14A-09) ......................... 53
Timing cover and sprocket
General................................................................ 54
Repair Instructions
Timing cover outer, replacement (15A-01).......... 55
Timing belt, inspection (15A-02) ......................... 56
Timing belt, tension (15A-03) .............................. 57
Timing belt, replacement (15A-04) ...................... 58
Fuel injection pump pulley,
replacement (15A-05) .......................................... 59
Camshaft pulley, replacement (15A-06).............. 61
Crankshaft pulley, replacement (15A-07)............ 62
Timing cover inner, replacement (15A-08) .......... 65
Cylinder block
General................................................................ 67
Repair Instructions
Cylinder block, replacement (16A-01)................. 67
Cylinder block, inspection (16A-02) .................... 69
Cylinder bore, honing (16A-03)............................ 70

Volvo Penta MD22 Specifications

General

Brand	Volvo Penta
Model	MD22
Category	Engine
Language	English