Main technical data of the «AAA» engine (VW Passat B4)

The release began in October 1991.

Number and arrangement of cylinders - VR6.

Working volume, cm³ — 2792.

Nominal power "net" / at crankshaft speed, rpm:

• according to DIN, hp — 128/5800;
• according to ISO standards, kW - 94/5800.

Maximum torque/at crankshaft speed rpm:

• according to DIN, kgf·m - 24.2/4200;
• according to ISO standards, Nm - 235/4200.

The ratio of the cylinder bore to the piston stroke (D/S) is 81.0/90.3. Compression ratio is 10.

Cylinder diameter, mm:

• nominal - 81.01^+0,04.
• 1st repair - 81.5^+0,04;
• 2nd repair - 82.01^+0,04

.
Piston diameter, mm:

• nominal - 80.985^+00,2;
• 1st repair - 81,485^+00,2;
• 2nd repair - 81.985^+00,2.

Crankshaft journal diameter¹, mm — 60,000^-0,022_-0,042.

View the original on the website [VWManual.ru]

Diameter of crankshaft connecting rod journals¹, mm — 54,000^-0,022_-0,042.

Crankshaft axial clearance, mm:

• nominal - 0.07-0.17;
• maximum - 0.25.

Radial clearance of crankshaft main journals, mm:

• nominal - 0.02-0.06;
• maximum - 0.10.

Radial clearance of crankshaft connecting rod journals, mm:

• nominal - 0.01-0.06;
• maximum - 0.10.

Piston ring gap, mm;

compression:

• nominal - 0.2-0.44;
• maximum - 1.00;

oil scraper:

• nominal - 0.25-0.50;
• maximum - 1.00.

Clearance between piston groove and piston ring, mm:

compression:

• nominal - 0.02-0.07;
• maximum - 0.15;

oil scraper:

• nominal - 0.02-0.06;
• maximum - 0.15.

Maximum axial clearance of the camshaft, mm — 0.15.

Maximum radial clearance of the camshaft, mm — 0.10.

Maximum runout of the flywheel end surface, mm — 0.08.

Oil pressure in the lubrication system, not less than, kgf/cm²:

• at idle - 0.3^+0,15;
• at 2000 rpm - 1.8-2.2;
• at 2500 rpm - 5-8.

1) Regrinding of crankshaft journals is not permitted.