Measuring the valve clearance

WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Measurement must be carried out on a cold engine. A suitable temperature is approximately 20°C/68°F.

Fig 1: Checking Valve Clearance

Courtesy of VOLVO CARS OF NORTH AMERICA.

Use feeler gauge 9995752 .

Press with a finger so that the feeler gauge lies parallel to the upper side of the tappet as shown.

Move the feeler gauge sideways when taking the reading in order to obtain as accurate a measurement as possible.

The valve clearance on a cold engine (approximately 20°C/68°F) must be:

Reference Values

Valve:	Valve clearance:
Intake valve:	0.20 0.03 mm
Exhaust valve:	0.40 0.03 mm

NOTE: The tolerances are less at setting When checking the valve clearance through the plug hole the tolerances are larger.

Differences in valve clearance for different engines/ambient temperatures:

+ 0.01 mm at 15°C
+ 0.01 mm at 25°C
+ 0.02 mm at 30°C
+ 0.03 mm at 35°C
+ 0.04 mm at 45°C.