Detaching toothed belt from camshaft sprocket 08.91 ä — AUDI

Special tools and workshop equipment required

V-belt and toothed belt tester VW 210

Removing

Engine in position

Remove upper radiator trim -arrows-.
Remove trim beneath headlights and lock carrier support.

=> General Body Repairs, Exterior; Repair Group 50; Front Body
General Body Repairs, Exterior
Front Body

Vehicles with heavy-duty cooling:

Remove additional radiator and lay it aside with coolant hoses connected.

All models:

Detach V-belt for servo pump from pulley of servo pump
=> Page
13-4
.
Remove upper toothed belt guard -1-; leave lower toothed belt guard -2- in position.

Set crankshaft at central bolt of crankshaft toothed belt sprocket in direction of engine rotation to no. 1 cyl. TDC mark ...

Vehicles with manual gearbox

Vehicles with automatic gearbox

Note:

Turning crankshaft to no. 1 cylinder TDC with engine removed

=> Page
13-59
.

... at the same time, dot on front of camshaft sprocket must coincide with arrow at rear toothed belt guard. If necessary, give crankshaft 1 further turn.

Screw out both upper bolts of tensioner (elongated holes) by 1 turn.
Slacken off lower bolt until tensioner can be moved.
Detach toothed belt from camshaft sprocket.

Installing (adjusting valve timing)

Install in reverse order, paying attention to the following:

Notes:

When turning camshaft, none of the crankshaft cylinders should be at TDC, as this could result in valve/piston crown damage.
Toothed belt tension is to be adjusted when engine is cold.

Align dot at camshaft sprocket with arrow at toothed belt guard.

Check again to establish whether crankshaft is at no. 1 cylinder TDC.

Vehicles with manual gearbox

Vehicles with automatic gearbox

Note:

Turning crankshaft to no. 1 cylinder TDC with engine removed

=> Page
13-59
.

Position toothed belt on tensioning roller, coolant pump and camshaft sprocket.

Tension toothed belt; to do so, apply 25 Nm at hexagon and turn tensioner clockwise, hold in position and tighten bolts -arrows- to 10 Nm.
Give crankshaft two turns in direction of engine rotation and check whether camshaft and crankshaft marks coincide with their reference points.
Check tension of toothed belt using VW 210.
Scale reading: 14 ... 14.5

Correct setting if necessary.

Fit upper toothed belt guard -1-.
Fit V-belt for servo pump =>Page
13-4
onwards.
Fit lock carrier support and trim beneath headlights.

=> General Body Repairs, Exterior; Repair Group 50; Front Body
General Body Repairs, Exterior
Front Body

Check and if necessary adjust ignition point.

=> KE III Jetronic/Ignition System (5-cylinder); Repair Group 28; Checking ignition system; Adjusting ignition point
KE III Jetronic/Ignition System (5-cylinder)
Checking ignition system
Adjusting ignition point

Tightening torque

Component · Nm
Tensioner for toothed belt to cylinder block · / 10