Variable Valve Timing Unit - Checking & Adjusting: Adjustments Volvo S60 I

Installing the crankshaft adjustment tool

Remove the starter motor mounting screws. Pull out the starter motor and put it aside. Remove the plug of the gauge hole. Rotate the crankshaft slightly clockwise. Install 9995451 . Make sure that it bottoms against the engine block.

Scheme 472

Turn the crankshaft counterclockwise to its stop against the crankshaft adjustment tool. Check that the marking on the crankshaft timing gear pulley aligns with the marking on the oil pump.

Scheme 473

Note. Oil the center screw before installation.

Press the variable valve timing unit/timing gear pulley onto the camshaft. Install the center screw (1) that holds the variable valve timing unit to the camshaft. Do not tighten yet .

Slacken off, but do not remove the screws (2) which secure the timing gear pulley to the variable valve timing unit.

Position the upper timing cover.

Scheme 474

Turn the timing gear pulley so that the screws at the oval holes are in the limit position. Continue turning clockwise until the timing gear pulley's marking is 1 tooth before the marking on the upper timing cover.

Check that the timing gear pulley is still in the limit position in the oval holes.

Tighten the center screw (1) in the VVT unit to 120 Nm .

Check that the variable valve timing unit does not rotate when tightening. Install the center plug and tighten to 35 Nm .

Install the belt pulley on the exhaust camshaft: Install the belt pulley on the intake camshaft with three screws; do not tighten yet .

Check that the markings on the belt pulley and the upper timing cover align.

Adjust the belt tensioner

Note. This adjustment is done on a cold engine. A suitable temperature is approximately 20°C/68°F.

At higher temperatures (with the engine at operating temperature or a high outside temperatures for example) the indicator is further to the right. The graphics shows the position of the indicator when aligning the timing belt tensioner at different engine temperatures.

Scheme 475

Fix the belt tensioner center screw in position and turn the belt tensioner eccentric counterclockwise until the tensioner indicator passes the marked position.

Then turn the eccentric back so that the indicator reaches the marked position in relation to actual temperature.

At the same time, ensure that the center screw remains fixed. At 20°C/68°F, the indicator should be centered in the window.

If the indicator is not in the right position, the adjustment must be repeated.

Note. The variable valve timing unit must not be released from the limit position until after the timing gear pulleys have been tightened.

1. tighten the screws (2) on the timing gear pulley for the intake camshaft to 10 Nm
2. install the screw missing on the exhaust timing belt pulley
3. tighten the screws on the timing gear pulley for the exhaust camshaft to 20 Nm .

1. the camshaft adjustment tools «9995452»(ref-403953-S02369714572011061000000)
2. the crankshaft stop «9995451»(ref-403953-S26663901482011061000000) .

Install the plug with a new sealing washer. Tighten to 40 Nm .

Scheme 476

1. press the belt to check that the indicator on the tensioner moves easily
2. install the upper timing belt cover
3. turn the crankshaft 2 rotations; check that the markings on the crankshaft and timing gear pulleys align
4. check that the indicator on the belt tensioner is within the marked area.

Remove the starter motor mounting screws. Pull out the starter motor and put it aside. Remove the plug of the gauge hole. Rotate the crankshaft slightly clockwise. Install 9995451 . Make sure that it bottoms against the engine block.

Note. This adjustment is done on a cold engine. A suitable temperature is approximately 20°C/68°F.

At higher temperatures (with the engine at operating temperature or a high outside temperatures for example) the indicator is further to the right. The graphics shows the position of the indicator when aligning the timing belt tensioner at different engine temperatures.

Remove the mounting screws for the starter motor.

Pull out the starter motor and place it to one side.

Remove the blind cover plug from the hole for the adjustment tool.

Turn the crankshaft clockwise slightly.

Install 9995451 . Ensure that the tool bottoms out against the cylinder block.

Removing the camshaft adjustment tool

Remove the camshaft adjustment tool 9995452 and the crankshaft adjustment tool 9995451 .

Install the plug to the starter motor with a new washer and tighten.

Scheme 477

Turn the engine 2 revolutions.

Then check that the belt tensioner indicator is in the center position. If not, it must be adjusted so that the indicator is in the correct position described in a previous work element.

Remove the starter motor mounting screws. Pull out the starter motor and put it aside.

Remove the blind cover plug for the adjustment tool hole. Turn the crankshaft clockwise slightly. Install the adjustment tool 9995451 . Ensure the adjustment tool bottoms against the engine block.