Engine specifications (Audi 80 B3)

Table of contents: General information ↓ Lubrication system ↓ Pistons and rings ↓ Connecting rods ↓ Camshaft ↓ Valves ↓ Cylinder head ↓ Tightening torques Nm ↓

General information

Working volume:

2.0 l - 1994 cm³
2.2 l - 2226 cm³
2.3 l - 2309 cm³

Cylinder Bore/Piston Stroke:

2.0 l - 81.0/77.4 mm
2.2 l - 81.0/86.4 mm
2.3 l - 82.5/86.4 mm

Compression ratio: 10.0:1
Minimum compression pressure - 8.0 bar
Maximum difference between cylinders is 3.0 bar
Cylinder firing order: 1 - 2-4 - 5-3 (No. 1 from timing belt)

Lubrication system

Oil type/specification - Multipurpose motor oil, viscosity SAE 15W/50 or 20W/50

Amount of oil:

With filter replacement - 4.5 l.
Without filter replacement - 4.0 l.
The difference between the min. and max. marks on the dipstick is 1.0 l.

Oil pressure (minimum) - 2.0 bar at 2000 rpm and oil temperature 80°C
Oil filter — Champion C101

Crankshaft Lateral Play:

New 0.07 - 0.23 mm
Wear limit - 0.29 mm
Maximum working clearance of the main bearing is 0.16 mm

Main bearing journal diameter:

Standard size - 57.96 - 57.98 mm
1st repair size - 57.71 - 57.73 mm
2nd repair size - 57.46 - 57.48 mm
3rd repair size - 57.21 - 57.23 mm

Crankpin diameter:

Standard size - 47.76 - 47.78 mm
1st repair size - 47.51 - 47.53 mm
2nd repair size - 47.26 - 47.28 mm
3rd repair size - 47.01 - 47.03 mm
Maximum ovality of the neck is 0.03 mm

Pistons and rings

Clearance between piston and cylinder bore:

New - 0.025 mm
Wear limit - 0.08 mm

Clearance between ring and groove in piston:

New:

Compression rings - 0.02 - 0.07 mm
Oil scraper ring - 0.02 - 0.06 mm
Wear limit - 0.15 mm
Piston diameter - Same as 4-cylinder engine
Cylinder bore diameter - Same as 4-cylinder engine

Cylinder channels:

Maximum ovality - 0.04 mm

Piston ring gap (15 mm from the base of the cylinder channel):

New compression - 0.20 - 0.40 mm
New oil scraper - 0.25 - 0.50 mm
Wear limit - 1.0 mm

Nominal dimensions - 81.0/82.5 mm

Connecting rods

Maximum lateral clearance of the lower connecting rod head is 0.40 mm
The maximum working clearance of the connecting rod bearing is 0.12 mm

Camshaft

Maximum lateral clearance:

10 valve engine - 0.15 mm
20 valve engine - 0.20 mm

Bearing working clearance:

10 valve engine - 0.1mm
20 valve engine - 0.2 mm
Camshaft runout (maximum) — 0.01 mm

Valves

Valve head angle - 45°

Valve Guides - Same as 4 Cylinder Engine

Valve stroke (at 1 mm rise):

Engines	PS	KV,NG	7A
Opening the intake	2° after TDC	TDC	6° before TDC
Closing the intake after BDC	31°	41°	38°
Opening of the graduation ceremony before NMT	31°	40°	42°
Closing of graduation	2° before TDC	1° after TDC	3° before TDC