Timing Belt: Installation
- Install the camshaft sprocket and tighten the bolt to the specified torque.
- Temporarily install the camshaft sprocket bolt (C).
- Hold the portion (A) of the camshaft with a hexagonal wrench, and tighten the bolt (C) with a wrench (B).
Tightening torque :
78.5 ~ 98.1N.m (8.0 ~ 10.0kgf.m, 57.9 ~ 72.3lb-ft)
- Install the cylinder head cover.
- Install the cylinder head cover (A) and bolts (B).
Tightening torque :
7.8 ~ 9.8N.m (0.8 ~ 1.0kgf.m, 5.8 ~ 7.2lb-ft)
- Install the engine cover bracket (A).
- Install the PCV (Positive Crankcase Ventilation) hose (A) and breather hose (B) to the cylinder head cover.
- Install the ignition coil.
- Install the cylinder head cover (A) and bolts (B).
- Install the crankshaft sprocket (A).
- Align the timing marks of the camshaft sprocket (A) and crankshaft sprocket (B) with the No. 1 piston placed at top dead center and its compression stroke.
- Install the idler pulley (A) and tighten the bolt (B) to the specified torque.
Tightening torque :
42.2 ~ 53.9N.m (4.3 ~ 5.5kgf.m, 31.1 ~ 39.8lb-ft)
- Temporarily install the timing belt tensioner (A).
- Install the belt so as not give slack at each center of shaft. Use the following order when installing timing belt.
Crankshaft sprocket (A) →idler pulley (B) →camshaft sprocket (C) →timing belt tensioner (D).
- Adjust the timing belt tension.
- Loosen the tensioner pulley mounting bolt and apply tension to the timing belt.
- After checking the alignment between each sprocket and each timing belt tooth, tighten the mounting bolt (A) and (B) one by one.
Tightening torque :
19.6 ~ 26.5N.m (2.0 ~ 2.7kgf.m, 14.5 ~ 19.5lb-ft)
- Then recheck the belt tension.
Verify that when the tensioner and the tension side of the timing belt are pushed in horizontally with a moderate force [approx. 49N (11lb)], the timing belt cog end is approx. 1/2 of the tensioner mounting bolt head radius (across flats) away from the bolt head center.
- Timing belt tension measuring procedure [Using a mechanical tension gauge (BT-33-73F, BTG-2 type)] Rotate crankshaft in clockwise direction to set 1st piston on top dead center (TDC) and rotate crankshaft in counterclockwise to 90° then measure the belt tension in the middle of tension side span (in both arrow direction of above illustration) by free vibration method.CAUTION: When rotating the crankshaft counter-clockwise, be sure to rotate the crankshaft at a time.
- Input the belt specifications into the tension meter.TIMING BELT TENSION MEASURING REFERENCE CHART
Location of measurement Input data M (Mass, g/m.mm) W (Width, mm) S (Span, mm) T1 Camshaft sprocket to crankshaft sprocket 4.5 22 250 T2 Camshaft sprocket to tensioner 4.5 22 231 - Locate the micro phone close to the center of belt span (T1, T2) and bounce the belt by finger 2~3 times. Read a value on the display.
- Measure both T1 and T2 at the A and B points respectively and then calculate the average
Average Belt Tension (T)
Without CVVT (1.4L/1.6L): 20±3.5 kgf
With CVVT (1.6L): 18±3.5 kgf
- Input the belt specifications into the tension meter.
- Turn the crankshaft two turns in the operating direction (clockwise) and realign crankshaft sprocket and camshaft sprocket timing mark.
- Install the timing belt lower cover (A) with 5 bolts (B).
Tightening torque :
7.8 ~ 9.8N.m (0.8 ~ 1.0kgf.m, 5.8 ~ 7.2lb-ft)
- Install the flange and crankshaft pulley (A), and then tighten crankshaft pulley bolt.
Make sure that crankshaft sprocket pin fits the small hole in the pulley.
Tightening torque :
137.3 ~ 147.1N.m (14.0 ~ 15.0kgf.m, 101.3 ~ 108.5lb-ft)
- Install the timing belt upper cover (A) with 4 bolts (B).
Tightening torque :
7.8 ~ 9.8N.m (0.8 ~ 1.0kgf.m, 5.8 ~ 7.2lb-ft)
- Install the water pump pulley and 4 bolts.
- Install the power steering pump drive belt (C). (Refer to ELECTRONIC POWER STEERING SYSTEM )
- Install the air conditioner compressor drive belt (B).
(Refer to AIR CONDITIONING SYSTEM )
- Install the alternator drive belt (A). (Refer to ALTERNATOR )
- Install the RH side cover (A) with 2 bolts (B).
- Install the RH front wheel.
Tightening torque :
88.3 ~ 98.1N.m (9.0 ~ 10.0kgf.m, 65.1 ~ 72.3lb-ft)
- Install the engine cover with bolts.
Tightening torque :
3.9 ~ 5.9N.m (0.4 ~ 0.6kgf.m, 2.9 ~ 4.3lb-ft)