Skoda Workshop Service and Repair Manuals

Removing and installing, tightening the timing belt   Note Before removing the timing belt, mark direction of running. Reversing the rotation direction of an already used belt may destroy it. 1 -  Timing belt guard - bottom part –  unscrew to remove the belt pulley/vibration damper → Chapter 2 -  Timing belt guard - middle part 3 -  10 Nm –  self-locking, replace 4 -  Engine support bracket –  removing → Anchor 5 -  45 Nm 6 -  Timing belt guard - top part 7 -  Toothed belt –  before removing mark running direction –  check for wear –  do not kink –  removing → Anchor –  installing → Anchor 8 -  25 Nm 9 -  Washer 10 -  100 Nm –  to release and tighten the counterholder -T30004- and -MP 1-216- use 11 -  Camshaft sprocket –  with sensor rotor for camshaft position sensor -G40 - –  for removing and installing, remove toothed belt → Anchor –  Fix installation position by woodruff key pos. 14 12 -  Toothed belt guard 13 -  10 Nm 14 -  Woodruff key –  check tightness 15 -  Camshaft position sensor -G40- –  when bolting on, ensure base plate is centered 16 -  10 Nm 17 -  Rear toothed belt guard 18 -  20 Nm 19 -  Toothed belt tensioning pulley –  check semi-automatic tensioning pulley → Chapter –  Fitting position → Fig. 20 -  Coolant pump –  removing and installing → Chapter 21 -  15 Nm 22 -  Toothed belt sprocket - crankshaft –  there must not be any oil present on the contact surface between the toothed belt sprocket and the crankshaft –  can be installed only in one position 23 -  90 Nm + torque a further 1/4 turn (90°) –  replace –  Fit bolt in original condition, do not oil or grease –  to release and tighten the counterholder -T30004- or -MP 1-310- use –  when bolting on counter-holder -MP 1-310-, place 2 washers between timing belt sprocket and counter-holder

Fitting position of toothed belt tensioning pulley The angle bracket -arrow- must engage in the recess at the cylinder head. Special tools and workshop equipment required t  Two-hole nut turner -T10020- t  Counterholder -MP 1-216- t  Counterholder -T30004 - or Counterholer -MP 1-310 - t  Supporting device -MP 9-200- Removing toothed belt l  Engine installed   Note If it is only necessary to remove the toothed belt from the toothed belt gear or the toothed belt tensioning pulley, the engine support as well as the engine mount must be removed. –  Remove the V-ribbed belt and clamping fixture → Anchor. –  Disconnect plug at coolant expansion reservoir and at activated charcoal filter system solanoid valve.

–  Unbolt coolant expansion reservoir and PAS reservoir -arrows-; hoses remain connected.

–  Remove engine cover -2-. To do so release nut -1-, withdraw oil dipstick -3- and pull front engine cover upwards with a sudden motion -arrows-. –  Remove timing belt guard - top part.

–  Fit supporting device -MP 9-200-. –  Slightly raise the engine using the spindle on the catching device -MP 9-200 -.   Note Tie up the coolant expansion reservoir and the PAS reservoir at the supporting device.

–  Remove middle and right noise insulation -arrows-. First of all remove air guide part on outside right.

–  Rotate crankshaft at central bolt of crankshaft timing belt sprocket in direction of rotation of engine and position to TDC marking of cylinder 1 -arrows-.

–  Check whether the TDC marking on the flywheel and the driver disc with the reference mark correspond -arrow-. I -  Manual gearbox II -  Automatic gearbox

–  Unbolt engine support from engine mount and engine mount from body -arrows-. –  Remove the vibration damper without altering the TDC position. –  Remove toothed belt guard-bottom part and -middle part.

–  Remove engine support -arrows-. If applicable slightly raise or lower engine with supporting device - MP 9-200-. –  Mark the direction of rotation of the timing belt with chalk or a felt-tip pen. –  Slacken timing belt tensioning pulley and take off timing belt. –  Turn crankshaft slightly back. Installing the timing belt   Note When rotating the camshaft, the crankshaft must not be positioned at TDC. Risk of damaging valves and pistons. Condition l  The pistons must not be at TDC.

–  Bring the marking on the camshaft sprocket in line with the marking on the cylinder head cover (TDC cyl. 1). –  Fit toothed belt onto toothed belt sprocket of crankshaft and coolant pump (pay attention to direction of running). –  Screw engine support to cylinder block. Tightening torque: 45 Nm   Note Before installing, insert bolts into the engine support. –  Install the middle and bottom part of timing belt guard, replace screws. Tightening torque: 10 Nm –  Install toothed belt/vibration damper. Tightening torque: 40 Nm –  Bring the marking on the vibration damper in line with the marking on the bottom part of timing belt guard (TDC cyl. 1).

–  Check whether the TDC marking on the flywheel and the driver disc with the reference mark correspond -arrow-. I -  Manual gearbox II -  Automatic gearbox –  Install engine mount, replace screws. Align unit mounting for engine → Chapter. Tightening torques → Chapter –  Remove supporting device -MP 9-200-. –  Install coolant expansion reservoir. –  Install PAS reservoir. –  Fit timing belt onto camshaft sprocket and tensioning pulley. –  Tension timing belt → Anchor. –  Install the top part of the timing belt guard. –  Installing tensioning element for the V-ribbed belt. Tightening torque: 25 Nm –  Install the V-ribbed belt → Anchor. –  Install noise insulation and engine cover Tightening the timing belt Precondition: l  Crankshaft is at TDC for cylinder 1.

–  Before tensioning the toothed belt, rotate the tensioning pulley at the eccentric with the -T10020- two-hole nut turner 5 times in both directions as far as the stop. –  Tighten the timing belt. Turn with two-hole nut turner -T10020- at eccentric to the left (in direction of arrow) up to the stop. –  Slacken the timing belt until the notch -1- and the pointer -2- are positioned opposite (use mirror). –  Tighten the fixing nut to 25 Nm. –  Rotate crankshaft further two revolutions in direction of rotation of engine until engine is again positioned at TDC of cylinder 1. When doing this, it is important that the last 45° (1/8 rotation) are rotated without any interruption. –  Once again inspect tension of toothed belt. Specified value: Pointer and notch are positioned opposite.