Skoda Workshop Service and Repair Manuals

Install When installing, pay attention to the following points: l  The crankshaft - toothed belt sprocket is secured to the crankshaft with a screw and two washers. l  Lock the camshaft sprockets with camshaft lock -T10016- in the fit holes of the cylinder head cover and secure against turning.   Note When turning the camshaft the valves may touch the piston in TDC. Work procedure

–  Position crankshaft on TDC for cylinder 1. The chamfered tooth must correspond with the marking on the sealing flange -arrow-. –  Fit on coupling drive - toothed belt. If the toothed belt has been used pay attention to the rotation direction. Install the coupling drive tensioning pulley as follows:

–  Turn the coupling drive tensioning pulley with Allan screw -1- clockwise in the direction of the marking window -arrow- (tensioning pulley in released position). –  Push the bottom part of the coupling drive-toothed belt upwards using the tensioning pulley and screw in the fixing screw of the tensioning pulley. –  Tighten fixing screw manually. The peg of the base plate -2- must engage in the bore in the cylinder head.

–  Subsequently tension the toothed belt by turning the tensioning pulley with an Allan key pos. -1- in -direction of arrow A- until the pointer -2- is positioned over the peg in the base plate in the marking window -arrow-. –  Tighten fixing screw of the tensioning pulley to 20 Nm. –  Remove camshaft lock -T10016-. –  Turn the crankshaft or toothed belt gear from TDC half a tooth anti-clockwise (approx 1.5 mm). –  Fit on main drive toothed belt. –  Fix the two camshaft sprockets with camshaft lock -T10016-. Install main drive tensioning pulley:

–  Loosely fit the tensioning pulley with the fixing screw and turn with the Allan screw in the -direction of the arrow-.

–  Tighten fixing screw manually. The recess in the base plate -1- must be positioned on the screw head -2- in the cylinder block. –  Subsequently tension the toothed belt in the direction of the arrow by turning the tensioning pulley until the pointer -3- is positioned over the notch in the base plate -arrow-. –  Tighten the fixing screw of the tensioning pulley. Tightening torque: 20 Nm. –  Remove camshaft lock -T10016-.

–  Now rotate crankshaft two revolutions in direction of rotation of engine until it is again positioned on TDC for cylinder 1. The chamfered tooth must correspond with the marking on the sealing flange -arrow- in the fig. -A-. In this position both camshaft sprockets must lock with camshaft lock -T10016- fig. -B-. –  Then inspect the toothed belt setting and tensioning pulley setting again, if necessary repeat tensioning of the two toothed belts. –  Install timing belt guard. –  Installing the V-ribbed belt pulley. Pay attention to the following: t  The fixing screw for the V-ribbed belt pulley and crankshaft - toothed belt sprocket must be replaced. t  Pay attention to the crankshaft - toothed belt sprocket when installing the V-ribbed belt pulley. t  Tightening process for the new oiled screw: pay attention to the tightening torque depending on the version of the screw → Chapter –  Attach engine mount to cylinder head. Tightening torque 50 Nm.

–  Screw the engine console to the body with screws -B-.

–  Secure the engine console to the engine mount on the cylinder head with screws -A-. –  Tightening torques of the unit mounting → Chapter. –  Install coolant expansion reservoir. –  Install the V-ribbed belt → Chapter.   Note Pay attention to the correct position of the V-ribbed belt in the belt pulley when installing it. –  Install engine cover with air filter. –  Interrogate the fault memory → Vehicle diagnostic, testing and information system VAS 5051.