Rover 820 - Page 56

1380 Rover 800 Series Remake
2B
General
Engine type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V6, single overhead camshaft per bank
Engine code:
2.5 litre engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C25A
2.7 litre engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C27A
Capacity:
2.5 litre engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2496 cc
2.7 litre engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2675 cc
Bore:
2.5 litre engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 mm
2.7 litre engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87.0 mm
Stroke (all engines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75.0 mm
Compression ratio:
2.5 litre engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.6:1
2.7 litre engines:
Non-catalyst equipped engines . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.4:1
Catalyst equipped engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.0:1
Firing order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4-2-5-3-6 (No 1 cylinder at timing belt end on rear bank)
Direction of crankshaft rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clockwise (seen from right-hand side of vehicle)
Radial clearance on rocker shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.08 mm maximum
Cylinder head
Maximum gasket face distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.2 mm
Camshafts and hydraulic tappets
Camshaft endfloat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05 to 0.15 mm
Camshaft bearing running clearance:
New . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.045 to 0.081 mm
Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.10 mm maximum
Hydraulic tappet seating stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.08 mm maximum
Chapter 2 Part B: V6 engine –
in-car engine repair procedures
Auxiliary drivebelts check and renewal . . . . . . . . . . . . . .See Chapter 1
Camshaft and hydraulic tappets - removal, inspection and refitting 15
Camshaft covers - removal and refitting . . . . . . . . . . . . . . . . . . . . . . 5
Camshaft oil seals - renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Compression test - description and interpretation . . . . . . . . . . . . . . 3
Crankshaft oil seals - renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Crankshaft pulley - removal and refitting . . . . . . . . . . . . . . . . . . . . . 10
Cylinder head - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . 16
Cylinder head, rocker gear and valve assemblies - cleaning and
inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .See Chapter 2C
Cylinder head side covers - removal and refitting . . . . . . . . . . . . . . 6
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 . . . . . . . . 21
Exhaust manifold - removal and refitting . . . . . . . . . . . . . . . . . . . . . 9
Exhaust valve rocker clearances - adjustment . . . . . . . . . . . . . . . . . 7
Flywheel/driveplate - removal, inspection and refitting . . . . . . . . . . 22
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Inlet manifold - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . 8
Oil cooler and filter head - removal and refitting . . . . . . . . . . . . . . . . 18
Oil pump - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Repair operations possible with the engine in the vehicle . . . . . . . . 2
Spark plug renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .See Chapter 1
Sump - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Timing belt - removal, refitting and adjustment . . . . . . . . . . . . . . . . 12
Timing belt covers - removal and refitting . . . . . . . . . . . . . . . . . . . . . 11
Timing belt tensioner and sprockets - removal, inspection and
refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Top Dead Centre (TDC) for number 1 piston - locating . . . . . . . . . . 4
Water pump - removal and refitting . . . . . . . . . . . . . . . .See Chapter 3
2B•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