Rover 820 - Page 38

1380 Rover 800 Series Remake
2A
General
Engine type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Four-cylinder, in-line, double-overhead camshafts
Engine codes:
“M” series engines:
Normally aspirated engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M16 (20 HD)
Turbocharged engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M16 (20 M4G)
“T” series engines:
Normally aspirated engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T16 (20 T4)
Turbocharged engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T16 (20 T4) Turbo
Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1994 cc
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84.45 mm
Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89.0 mm
Compression ratio:
Normally aspirated engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.0:1
Turbocharged engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5:1
Firing order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3-4-2 (No 1 cylinder at timing belt end)
Direction of crankshaft rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clockwise (seen from right-hand side of vehicle)
Timing belt tensioner spring free length (“T” series engines) . . . . . . . . . 57.5 to 58.5 mm
Cylinder head
Maximum gasket face distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 mm
Camshafts and hydraulic tappets
Camshaft bearing running clearance:
New . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.060 to 0.094 mm
Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.15 mm maximum
Camshaft endfloat (“T” series engines) . . . . . . . . . . . . . . . . . . . . . . . . . 0.06 to 0.25 mm
Lubrication
Engine oil type/specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Chapter 1
Engine oil capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Chapter 1
Oil pressure:
Idling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.7 bar
Running . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.8 bar
Auxiliary drivebelts check and renewal . . . . . . . . . . . . . .See Chapter 1
Camshafts and hydraulic tappets - removal, inspection and
refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Camshaft covers - removal and refitting . . . . . . . . . . . . . . . . . . . . . . 4
Camshaft oil seals - renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Compression test - description and interpretation . . . . . . . . . . . . . . 3
Crankshaft oil seals - renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Cylinder head - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . 12
Cylinder head, rocker gear and valve assemblies -
cleaning and inspection . . . . . . . . . . . . . . . . . . . . . .See Chapter 2C
Engine oil and filter change . . . . . . . . . . . . . . . . . . . . . . .See Chapter 1
Engine oil level check . . . . . . . . . . . . . . . . . . . . . . . . . . .See Chapter 1
Engine overhaul - general information . . . . . . . . . . . . .See Chapter 2C
Engine/transmission - removal and refitting . . . . . . . . .See Chapter 2C
Engine/transmission mountings - inspection and renewal . . . . . . . . 18
Exhaust manifold - removal and refitting . . . . . . . . . . . . . . . . . . . . . 6
Flywheel/driveplate - removal, inspection and refitting . . . . . . . . . . 17
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Inlet manifold - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . 5
Oil pump - dismantling, inspection and reassembly . . . . . . . . . . . . . 15
Oil pump - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Repair operations possible with the engine in the vehicle . . . . . . . . 2
Spark plug renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .See Chapter 1
Sump - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Timing belt (“M” series) - removal, refitting and adjustment . . . . . . . 7
Timing belt (“T” series) - removal, refitting and adjustment . . . . . . . 8
Timing belt tensioner and sprockets - removal, inspection and
refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Water pump - removal and refitting . . . . . . . . . . . . . . . .See Chapter 3
2A•1
Specifications
Contents
Easy, suitable for
novice with little
experience
Fairly easy, suitable
for beginner with
some experience
Fairly difficult,
suitable for competent
DIY mechanic
Difficult, suitable for
experienced DIY
mechanic
Very difficult,
suitable for expert DIY
or professional
Degrees of difficulty
5
4
3
2
1
Chapter 2 Part A: 4-cylinder engine –
in-car engine repair procedures