Daewoo Lanos Timing Belt Installationby Don Bowman
The manufacturer recommends that the timing belt be replaced at 72,000-mile intervals. This is an assessment made after reviewing the past service history for this engine. This engine has been identified as an interference engine, whereas in the event of a failure of the timing belt the likelihood of major engine damage would be extremely high. For this reason it is not recommended to surpass the mileage for replacement. It is not that difficult a job to replace this belt; however, the instructions must be followed precisely or engine damage will occur as soon as the engine is started.
Raise and support the vehicle on jack stands. Remove the intake air temperature wiring, the breather hose and intake air hose. Take off the air cleaner assembly.
Remove the right wheel. Remove the accessory belts. Remove the crankshaft bolt and the crankshaft pulley. Remove the power steering bolts and the timing belt covers. Temporarily install the crankshaft bolt and turn the engine clockwise until the mark on the crankshaft pulley, which is a triangle stamped into the crank sprocket, is aligned with the corresponding triangular mark on the block.
Make sure that the timing marks are aligned on the camshaft sprockets. These are a line on each sprocket that runs through a tooth on each sprocket. These lines should line up in the middle between each sprocket and point toward each other. If they do not line up, turn the crankshaft one more time and they will line up. It takes two turns of the crank to one complete revolution of the cam.
Loosen the water pump bolts; using the 3/8-inch ratchet, turn the water pump clockwise away from the belt and loosely tighten the bolts to keep it there. Remove the timing belt. Make sure the timing marks are aligned and install the new belt starting on the right side from the crank sprocket and working counterclockwise. Keep all the belt tension on the right side away from the tensioner.
Loosen the bolts in the water pump and rotate the water pump counterclockwise to apply tension to the belt. Watch the tensioner, which is above the water pump, and apply tension with the water pump until the pointer on the tensioner lines up with the notch above it. Lightly tighten the water-pump bolts.
Turn the engine two more times and align the timing marks perfectly. Loosen the water-pump bolts and, using the ratchet, apply tension to the belt until the tensioner pointers are aligned. Tighten the water-pump bolts.
Install the timing-belt covers and the bolts in the power-steering pump and tighten. Remove the crankshaft bolt and install the crank pulley and the bolt, then torque the crankshaft pulley bolt to 70 foot pounds of torque. Install all components in reverse order of removal.
Items you will need
- Set of ¼-inch drive sockets
- ¼-inch drive ratchet
- Set of ½-inch drive sockets
- ½-inch drive ratchet
- Set of 3/8-inch drive sockets
- 3/8-inch drive ratchet
- Set of metric wrenches
- Floor jack
- Jack stands