Skoda Workshop Service and Repair Manuals

Test timing Special tools and workshop equipment required t  Adapter for dial gauge -T10170- or -T10170 A- t  Camshaft fixer/locator -T10171 A- Change camshaft fixer/locator -T10171- in camshaft fixer/locator -T10171 A- → Chapter. t  Dial gauge, commercially available Test sequence –  Remove engine cover → Chapter.

–  Release screws -2- and remove retaining clip -1-. –  Disconnect plug -3- from charge pressure sender -G31- with intake air temperature sender 2 -G299-. –  Unhook the hoses at the pressure pipe and open the cable guide. –  Press the retaining clips -arrows- towards the outside and pull the pressure pipe out towards the top. –  Then pull off the pressure pipe from the exhaust turbocharger.

–  Disconnect plug -arrow- at oil pressure switch -F1-.

–  Release screw -1- for earth lead.

–  Release screws -1- and -2- and push the left coolant pipes to the left side.

–  Release screws -arrows-, take off cap -1- and -2-. –  Remove ignition coil from cylinder 1 → Chapter and release the spark plug.

–  Screw adapter for dial gauge -T10170 - up to the stop into the spark plug thread. –  Insert the dial gauge -A- with extension -T10170/1- up to the stop and fix in place using the clamping screw -arrow-. –  Rotate the crankshaft in direction of rotation of engine on TDC for cylinder 1. Note down the position of the small pointer of the dial gauge.

The holes -arrows- in the camshafts must be positioned as shown. If necessary rotate the crankshaft a further revolution (360°).   Note t  If the crankshaft was turned more than 0.01 mm past the top dead centre, the crankshaft must once again be turned approx 45° in the opposite direction of rotation of the engine. Then position the crankshaft in direction of rotation of engine on top dead centre of cylinder 1. t  Permissible deviation from TDC of cylinder 1: ± 0.01 mm.

–  Insert camshaft fixer/locator -T10171 A - up to the stop into the holes in the camshaft housing. l  The locking bolts -arrows 1- must engage in the holes -arrows 2-. The inscription “TOP”-arrow 3- must be legible from above. If the camshaft fixer/locator -T10171 A- is not insertable up to the stop in the camshaft openings, the timing is not correct and must be set → Chapter. The timing is O.K., if the camshaft fixer/locator -T10171 A- can be inserted up to the stop into the camshaft openings. Further installation occurs in a similar way in reverse order to removal. Pay attention to the following: t  Replace the gasket rings for the caps of the camshafts and oil before assembly.