A6 2 5 tdi (115 koni)

Audi A6 (94-97) 2,5D TDI 1994-97 Engine codę: AAT

Impoitant notę

Replacement lnteiv«il Guide

Check For Engine Domage

Repair Times - his

Special Tools

Special Precmitions

Removol i nsta Kation

Installation

1.    Slacken camshaft sprocket bolt 1/2 tum (16). Tap sprocket gently to loosen it from taper.

NOTĘ: Sprocket should turn freely without tilting.

2.    Ensure crankshaft has not moved.

3.    Fit timing belt in anti-clockwise direction, starting at crankshaft sprocket. Ensure belt is taut between sprockets.

4.    Slacken tensioner bolt (8).

5.    Turn tensioner pulley until pointer has moved approximately 3 mm to the right (17). Use tool No.3355 (9).

6.    Slacken tensioner bolt until pointers aligned (18).

7.    Tighten tensioner bolt to 25 Nm (8).

8.    Install:

o Timing belt lower cover (7).

o Crankshaft pulley (6). Lightly tighten centre bolt (2).

9.    Ensure timing marks aligned (3) or (19).

10.    Tighten camshaft sprocket bolt (16). Tightening torque: 30 Nm +90°

11.    Remove camshaft setting bar (14).

12.    Fit camshaft rear sprocket. Fit bolt and washer (13). Tighten bolt until sprocket can just be turned by hand.

13.    Install:

o Injection pump belt. o Tensioner spring (11).

14.    Slacken tensioner nut to tension belt (10).

15.    Ensure timing marks aligned (3) or [19] & (4).

16.    Hołd camshaft rear sprocket. Use tool No.3036 [12], Tighten bolt to 160 Nm [13],

17. Turn crankshaft 1/2 turn clockwise. Tighten tensioner nut to 45 Nm [10].

18. Turn crankshaft 1 1/2 turns to TDC on No.1 cylinder. Ensure timing marks aligned [3] & (4).

19.    Recheck belt tension. Ensure pointers no morę than 3 mm apart [17].

20.    Fit new crankshaft pulley centre bolt (2). Lightly oil threads. Tightening torque: 200 Nm + 270° (3/4 of a turn).

21.    Fit crankshaft pulley bolts (5). Tightening torque: 20 Nm +90⁰

22.    Install components in reverse order of removal.

Und (°