Skoda Workshop Service and Repair Manuals

Install Conditions l  The pistons must not be positioned at top dead centre. l  The crankshaft - toothed belt sprocket is secured to the crankshaft with fixing 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 anti-clockwise until the pointer -2- is positioned above the peg -arrow- of the base plate in the marking window. –  Tighten the fixing screw on the tensioning pulley. Tightening torque: 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-. If the tensioning pulley has been removed beforehand, install tensioning pulley as follows:

–  Turn tensioning pulley with Allan key anti-clockwise in the marked position -arrow-.

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

–  Now rotate crankshaft 2 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 bottom timing belt guard. –  Install crankshaft belt pulley. Pay attention to the following: t  The fixing screws for the belt pulley and toothed belt gear must be replaced. t  Pay attention to the toothed belt gear attachment when installing the belt pulley. t  The clamping surfaces of the belt pulley and the screw must be degreased. t  Tightening process for the new oiled screw: 150 Nm + torque a further 1/2 turn (180°). t  Counterhold crankshaft belt pulley with counterholder -T30004 (3415)- and replaceable bolt -T30004/1 (3415/1)-. –  Attach engine mount to cylinder head. Tightening torque 50 Nm –  Install engine assembly bracket. Tightening torques → Chapter. –  Install top toothed belt guard. –  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 the front right wheelhouse liner → Body Work → Rep. gr.66. –  Install the noise insulation. –  Screw on the coolant expansion reservoir. –  Connect hose for crankcase ventilation and install engine cover with air filter → Chapter.