Timing Belt - Volvo 850 Accessories Manual

are aligned. Install spark plug cover.
3) Install vibration damper guard, front timing belt cover,
auxiliary drive belt, 2 fuel pipe clips, expansion tank, wheel arch
liner and wheel. Fill cooling system with coolant. Check oil level.
Start engine and check for leaks.

TIMING BELT

Removal
1) Remove spark plug cover and 2 fuel line clips. Lift out
expansion tank and place on top of engine. Remove front timing belt
cover. Remove auxiliary drive belt. Remove right front wheel and
release wheel arch liner to gain access to vibration damper. Remove
vibration damper guard. Turn crankshaft clockwise until all timing
marks are aligned. See Fig. 8.
2) Remove tensioner upper mounting bolt and loosen tensioner
lower bolt. Twist tensioner to free pulley. Remove lower bolt,
tensioner, upper timing belt cover and belt.
3) Remove tensioner upper mounting bolt and loosen lower
mounting bolt. Twist tensioner to free plunger/pulley. Remove lower
bolt, tensioner and belt.
CAUTION: DO NOT turn crankshaft or camshafts while belt is removed.
Inspection
1) Spin tensioner and idler pulleys and listen for bearing
noise. See Fig. 11.
2) Ensure pulley surfaces in contact with belt are clean and
smooth. Check tensioner pulley arm and idler pulley mountings, and
tighten bolts as necessary. See TORQUE SPECIFICATIONS. Check tensioner
for signs of leakage, no resistance when depressed, or a plunger that
cannot be depressed.
Fig. 11: Checking Tensioner & Idler Pulleys
Courtesy of Volvo Cars of North America.
Installation
1) Compress tensioner and tighten center nut. Wait until