When installing the cylinder head gasket fit alignment studs as shown.
Auxiliary shaft and distributor rotor it, tdc position
Slackening and tightening sequence for the head bolts
Alignment studs
Lubricate head bolts at threads and under bolt head and install bolts together with washers.
Tighten cylinder head bolts as follows:
Stage 1 requires to tighten all bolts 30-35 Nm.
Stage 2 requires to tighten all bolts to 67 -70 Nm following the sequence.
Stage 3 requires the bolts to be tighten in degrees of rotating using a special gauge tool.
Following the sequence, each bolt is turned 80° - 90° of rotation .
Check and ensure that the crankshaft, the camshafts, the auxiliary shaft and the distributor rotor are still in TDC position. Fit the timing belt in counter*clockwise direction starting at the auxi*liary gear.
• Pull belt tensioner by hand in clockwise direction against the timing belt and tighten fastening nut.
Crank engine several times in clockwise direction and subsequently one full turn counter - clockwise to TDC position.
Note: The engine must not be cranked beyond TDC position.
Using the belt tension gauge 21-113, check belt tension at the longest straight section (see illustration). If necessary adjust belt tensioner so that the specified tension of 9,5 to 10,5 is achieved.
Repeat complete procedure and recheck belt tension.
Crankshaft, camshafts, auxiliary shaft and distributor in tdc position