Place the tip of the tool (Mot. 1511) on the valve stem (the inner diameter of the tip must be equal to the diameter of the rod).
Keep the valve pressed against the seat.
Checking the spring calibration
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Install the oil seal (not oiled) on the tip.
Slide the oil seal until it passes over the tip.
Remove the tip.
Install the mandrel onto the oil seal.
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Note: The inside diameter of the mandrel should match the diameter of the valve stem. In addition, the bottom of the mandrel should partially rest against the valve stem seal, which serves as a support washer for the valve spring.
Press on the valve stem seal by tapping the top of the mandrel with your palm until the valve stem seal contacts the cylinder head.
Repeat the above operations for all valves.
Install the springs and plates.
Insert the croutons using curved tongs.
Install the thermostat assembly with a new gasket onto the cylinder head.
Tighten the thermostat assembly mounting bolts on the cylinder head in the order shown in the figure to the required torque (10 Nm).
Install the exhaust manifold with a new gasket.
Tighten the exhaust manifold mounting stud nuts in the order shown in the figure to the required torque (23 Nm).
Install the exhaust manifold heat shield.
Tighten the exhaust manifold heat shield mounting bolts to the specified torque (1 Nm).
Caution: Make sure the exhaust manifold heat shield is securely fastened between the oxygen sensor and the manifold (to avoid overheating, which could result in damage to the upstream oxygen sensor wiring).
Tighten the oxygen sensor to the specified torque (4.5 Nm) using the tool (Mot. 1495). Install the inner timing case spacer.
Install the injector housing linings with a new gasket.
Install the oxygen sensor. Align the injector housing lining with the cylinder head (from the timing drive side).
Align the mating planes of the injector housing linings with the cylinder head. Tighten the injector housing lining bolts in the specified order to the required torque (21 Nm).
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