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Dismantling and assembling pistons and conrods > < Extracting and driving in needle bearing for crankshaft

A4 Mk1

Removing and installing drive chain sprocket for oil pump
Removing and installing drive chain sprocket for oil pump
Special tools and workshop equipment required
   
t  Drift sleeve -30-100-
  W00-0359
t  Thrust plate -40-105-
t  Two-arm puller, commercially available
t  Protective gloves
  W00-0113
Removing
–  Remove sump → Chapter.
–  Remove sealing flange (front) → Chapter.
–  Remove drive chain for oil pump → Item and chain tensioner → Item.
–  Pull off crankshaft drive chain sprocket using e.g. claw-type puller -Kukko 44/1--item 2- (protect end of crankshaft with thrust plate -40-105--item 1-).
Installing
Installation is carried out in the reverse order; note the following:
–  Heat drive chain sprocket in an oven for approx. 15 minutes to 220 °C.
  WARNING
Wear protective gloves.
–  Using pliers, locate drive chain sprocket on end of crankshaft.
l  Installation position: wider collar on drive chain sprocket faces engine.
  A13-0058
–  Push drive chain sprocket onto crankshaft as far as the stop using fitting sleeve -30-100-.
  A13-0059

Dismantling and assembling pistons and conrods > < Extracting and driving in needle bearing for crankshaft