Audi Workshop Service and Repair Manuals

Removing and installing sealing flange (pulley end) Special tools and workshop equipment required

t  Fitting sleeves -3202-

t  Fitting sleeve -3265-

Removing l  Engine in vehicle. l  Lock carrier must be in service position → Chapter. –  Remove toothed belt → Chapter. –  Unscrew central bolt -3- for toothed belt sprocket -1- on crankshaft. –  Detach spacer sleeve -2- and toothed belt sprocket. –  Remove top section of sump → Chapter.

–  Remove idler roller -4-, tensioning roller -3-, tensioning lever -2- and tensioner -1-.

–  Remove bolts -1- and -2-. –  Remove sealing flange (pulley end). –  Drive out oil seal with flange removed.

Installing Installation is carried out in the reverse order; note the following:   Note t  Before installing sealing flange, check position of drive chain for oil pump. Drive chain must make contact with guide rail of chain tensioner -arrows-. t  If sealing flange is installed with oil seal already fitted, place fitting sleeve -3202/1- on end of crankshaft before installing sealing flange.

–  Clean sealing surfaces. –  Apply locking fluid to bolt -2- and insert bolt. –  Tighten bolts -1- and -2-.   Note Do not lubricate sealing lip and outer rim of oil seal before pressing in.

–  Install oil seal using fitting sleeve -3202/1-. –  Press oil seal in so that it is flush using fitting sleeve -3265- and central bolt.   Note Fit spacer sleeve for crankshaft sprocket underneath central bolt. –  Install idler roller. l  Installation position: recess in mounting hole (for bolt head) faces towards front. –  Pay attention to washers fitted behind tensioning roller and tensioning lever.

–  Install crankshaft sprocket -1- with spacer sleeve -2- and new central bolt -3-.   Note t  Contact surface between toothed belt sprocket and crankshaft must be free of oil. t  Do not lubricate bolt for crankshaft sprocket. –  Install toothed belt (adjust valve timing) → Anchor. –  Install sump (top section): vehicles with moulded gasket → Chapter, vehicles with liquid gasket → Chapter. Tightening torques

Component		Nm
Sealing flange (pulley end) to cylinder block	M6	10
	M8	30
Toothed belt sprocket to crankshaft		200 + 180° 1)
Toothed belt tensioning roller to sealing flange (pulley end)		42
Tensioner to sealing flange (pulley end)		10
Tensioning lever to sealing flange (pulley end)		42
Idler roller to sealing flange (pulley end)		45
l  1) Renew bolt.