2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
2010 ENGINE
Timing System - Accent
TIMING BELT
COMPONENTS AND COMPONENTS LOCATION
Components
Fig. 1: Identifying Timing Belt Components With Torque Specifications
Courtesy of HYUNDAI MOTOR CO.
REPAIR PROCEDURES
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08:54:05 p. m. Page 1 © 2011 Mitchell Repair Information Company, LLC.
2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Removal
Engine removal is not required for this procedure.
1. Remove the engine cover.
2. Remove the RH front wheel.
3. Remove the 2 bolts (B) and RH side cover (A).
Fig. 2: Locating Bolts And RH Side Cover
Courtesy of HYUNDAI MOTOR CO.
4. Temporarily loosen the water pump pulley bolts.
Fig. 3: Loosening Water Pump Pulley Bolts
Courtesy of HYUNDAI MOTOR CO.
5. Remove the alternator drive belt (A). (Refer to ALTERNATOR ).
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Fig. 4: Locating Alternator Drive Belt
Courtesy of HYUNDAI MOTOR CO.
6. Remove the air conditioner compressor drive belt (B).
(Refer to AIR CONDITIONING SYSTEM ).
7. Remove the power steering pump drive belt (C).
(Refer to POWER STEERING PUMP ).
8. Remove the 4 bolts and water pump pulley.
9. Remove the 4 bolts (B) and timing belt upper cover (A).
Fig. 5: Locating Bolts And Timing Belt Upper Cover
Courtesy of HYUNDAI MOTOR CO.
10. Turn the crankshaft pulley, and align its groove with timing mark "T" of the timing belt cover. Check that
the timing mark of camshaft sprocket is aligned with the timing mark of cylinder head cover. (No. 1
cylinder compression TDC position)
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Fig. 6: Aligning Crankshaft Pulley Groove With Timing Mark T Of Timing Belt Cover
Courtesy of HYUNDAI MOTOR CO.
Fig. 7: Checking Timing Mark Of Camshaft Sprocket Aligned With Timing Mark Of Cylinder
Head Cover
Courtesy of HYUNDAI MOTOR CO.
11. Remove the crankshaft pulley bolt and crankshaft pulley (A).
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Fig. 8: Locating Crankshaft Pulley Bolt And Crankshaft Pulley
Courtesy of HYUNDAI MOTOR CO.
12. Remove the crankshaft flange (A).
Fig. 9: Locating Crankshaft Flange
Courtesy of HYUNDAI MOTOR CO.
13. Remove the 4 bolts (B) and timing belt lower cover (A).
Fig. 10: Locating Bolts And Timing Belt Lower Cover
Courtesy of HYUNDAI MOTOR CO.
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
14. Remove the timing belt tensioner (A) and timing belt.
Fig. 11: Locating Timing Belt Tensioner And Timing Belt
Courtesy of HYUNDAI MOTOR CO.
Fig. 12: Identifying Timing Belt
Courtesy of HYUNDAI MOTOR CO.
NOTE: If the timing belt reused, make an arrow indicating the turning direction to
make sure that the belt is reinstalled in the same direction as before.
15. Remove the bolt (B) and timing belt idler (A).
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Fig. 13: Locating Bolt And Timing Belt Idler
Courtesy of HYUNDAI MOTOR CO.
16. Remove the crankshaft sprocket (A).
Fig. 14: Locating Crankshaft Sprocket
Courtesy of HYUNDAI MOTOR CO.
17. Remove the cylinder head cover.
1. Remove the wire harness bracket (A).
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Fig. 15: Locating Wire Harness Bracket
Courtesy of HYUNDAI MOTOR CO.
2. Remove the ignition coil.
Fig. 16: Locating Ignition Coil
Courtesy of HYUNDAI MOTOR CO.
3. Remove the PCV (Positive Crankcase Ventilation) hose (A) and the breather hose (B) from the
cylinder head cover.
Fig. 17: Locating Positive Crankcase Ventilation Hose And Breather Hose
Courtesy of HYUNDAI MOTOR CO.
4. Remove the engine cover bracket (A).
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Fig. 18: Locating Engine Cover Bracket
Courtesy of HYUNDAI MOTOR CO.
5. Loosen the cylinder head cover bolts (B) and then remove the cover (A) and gasket.
Fig. 19: Identifying Cylinder Head Cover Bolts Loosening Sequence
Courtesy of HYUNDAI MOTOR CO.
18. Remove the camshaft sprocket.
1. Hold the portion (A) of the camshaft with a hexagonal wrench, and remove the bolt (C) with a
wrench (B) and remove the camshaft sprocket.
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Fig. 20: Holding Portion Of Camshaft With Hexagonal Wrench
Courtesy of HYUNDAI MOTOR CO.
CAUTION: Be careful not to damage the cylinder head and valve lifter with
the wrench.
Inspection
Timing Belt
1. Check the belt for oil or dust deposits.
Replace, if necessary.
Small deposits should be wiped away with a dry cloth or paper. Do not clean with solvent.
2. When the engine is overhauled or belt tension adjusted, check the belt carefully. If any of the following
flaws are evident, replace the belt.
NOTE: l Do not bend, twist or turn the timing belt inside out.
l Do not allow timing belt to come into contact with oil, water and
steam.
3. Inspect the belt closely. If the following problems are evident, replace the belt with a new one.
1. Hardened back surface of rubber.
Back surface is glossy, non-elastic and so hard that when the nail of your finger is pressed into it,
no mark is produced.
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Fig. 21: Inspecting Belt For Hardened Back Surface Of Rubber
Courtesy of HYUNDAI MOTOR CO.
2. Cracked back surface of rubber.
Fig. 22: Inspecting Belt For Cracked Back Surface Of Rubber
Courtesy of HYUNDAI MOTOR CO.
3. Side of belt is badly worn.
NOTE: A belt in good condition should have clear-cut sides as if it were cut
with a sharp knife.
Fig. 23: Inspecting Belt For Side Of Belt Badly Worn
Courtesy of HYUNDAI MOTOR CO.
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
4. Teeth are badly worn out.
Initial stage : Canvas on load side of the tooth flank worn (fluffy canvas fibers, rubber gone, color
changed to white, and unclear canvas texture)
Last stage : Canvas on the load side of the tooth flank worn down and rubber exposed (tooth width
reduced).
5. Missing tooth.
Fig. 24: Inspecting Belt For Missing Tooth
Courtesy of HYUNDAI MOTOR CO.
Sprockets, Tensioner, Idler
1. Check the camshaft sprocket, crankshaft sprocket, tensioner pulley and idler pulley for abnormal wear,
cracks, or damage. Replace as necessary.
2. Inspect the tensioner pulley and the idler pulley for easy and smooth rotation and check for play or noise.
Replace as necessary.
Fig. 25: Inspecting Tensioner Pulley And Idler Pulley For Easy And Smooth Rotation
Courtesy of HYUNDAI MOTOR CO.
3. Replace the pulley if there is a grease leak from its bearing.
Installation
1. Install the camshaft sprocket and tighten the bolt to the specified torque.
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
1. Temporarily install the camshaft sprocket bolt (C).
2. Hold the portion (A) of the camshaft with a hexagonal wrench, and tighten the bolt (C) with a
wrench (B).
Tightening torque:
78.5 ~ 98.1 N.m (8.0 ~ 10.0 kgf.m, 57.9 ~ 72.3 lb-ft)
Fig. 26: Holding Portion Of Camshaft With Hexagonal Wrench
Courtesy of HYUNDAI MOTOR CO.
2. Install the cylinder head cover.
1. Install the cylinder head cover (A) and bolts (B).
Tightening torque:
7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8 ~ 7.2 lb-ft)
NOTE: Tighten the cylinder head cover bolts as following method.
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Fig. 27: Identifying Cylinder Head Cover Bolts Tightening Sequence
Courtesy of HYUNDAI MOTOR CO.
2. Install the engine cover bracket (A).
Fig. 28: Locating Engine Cover Bracket
Courtesy of HYUNDAI MOTOR CO.
3. Install the PCV (Positive Crankcase Ventilation) hose (A) and breather hose (B) to the cylinder
head cover.
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Fig. 29: Locating Positive Crankcase Ventilation Hose And Breather Hose
Courtesy of HYUNDAI MOTOR CO.
4. Install the ignition coil.
Fig. 30: Identifying Ignition Coil
Courtesy of HYUNDAI MOTOR CO.
3. Install the crankshaft sprocket (A).
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Fig. 31: Locating Crankshaft Sprocket
Courtesy of HYUNDAI MOTOR CO.
4. 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.
Fig. 32: Aligning Timing Marks Of Camshaft Sprocket With No. 1 Piston Placed At Top Dead
Center
Courtesy of HYUNDAI MOTOR CO.
Fig. 33: Aligning Timing Marks Of Crankshaft Sprocket With No. 1 Piston Placed At Top Dead
Center
Courtesy of HYUNDAI MOTOR CO.
5. Install the idler pulley (A) and tighten the bolt (B) to the specified torque.
Tightening torque:
42.2 ~ 53.9 N.m (4.3 ~ 5.5 kgf.m, 31.1 ~ 39.8 lb-ft)
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Fig. 34: Locating Idler Pulley And Bolt
Courtesy of HYUNDAI MOTOR CO.
6. Temporarily install the timing belt tensioner (A).
Fig. 35: Locating Timing Belt Tensioner
Courtesy of HYUNDAI MOTOR CO.
7. 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).
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Fig. 36: Locating Crankshaft Sprocket, Idler Pulley, Camshaft Sprocket And Timing Belt
Tensioner
Courtesy of HYUNDAI MOTOR CO.
8. Adjust the timing belt tension.
1. Loosen the tensioner pulley mounting bolt and apply tension to the timing belt.
Fig. 37: Applying Tension To Timing Belt
Courtesy of HYUNDAI MOTOR CO.
2. 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 ~ 26.5 N.m (2.0 ~ 2.7 kgf.m, 14.5 ~ 19.5 lb-ft)
3. Then recheck the belt tension.
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Verify that when the tensioner and the tension side of the timing belt are pushed in horizontally
with a moderate force [approx. 49 N (11 lb)], the timing belt cog end is approx. 1/2 of the tensioner
mounting bolt head radius (across flats) away from the bolt head center.
Fig. 38: Checking Belt Tension
Courtesy of HYUNDAI MOTOR CO.
4. 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.
A. Input the belt specifications into the tension meter.
BELT SPECIFICATIONS
Input data
Location of measurement M (Mass, W (Width, S (Span,
g/m.mm) mm) mm)
Camshaft sprocket to crankshaft
T1 4.5 22 250
sprocket
T2 Camshaft sprocket to tensioner 4.5 22 231
B. 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.
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Fig. 39: Locating Micro Phone Close To Center Of Belt Span (T1, T2)
Courtesy of HYUNDAI MOTOR CO.
C. Measure both T1 and T2 at the A and B points respectively and then calculate the average
Fig. 40: Belt Tension Calculation Formula
Courtesy of HYUNDAI MOTOR CO.
Average Belt Tension (T)
Without CVVT (1.4 L/1.6 L): 20 ± 3.5 kgf
With CVVT (1.6 L): 18 ± 3.5 kgf
9. Turn the crankshaft two turns in the operating direction (clockwise) and realign crankshaft sprocket and
camshaft sprocket timing mark.
10. Install the timing belt lower cover (A) with 5 bolts (B).
Tightening torque:
7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8 ~ 7.2 lb-ft)
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Fig. 41: Locating Timing Belt Lower Cover And Bolts
Courtesy of HYUNDAI MOTOR CO.
11. 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 ~ 147.1 N.m (14.0 ~ 15.0 kgf.m, 101.3 ~ 108.5 lb-ft)
Fig. 42: Locating Crankshaft Pulley And Bolt
Courtesy of HYUNDAI MOTOR CO.
12. Install the timing belt upper cover (A) with 4 bolts (B).
Tightening torque:
7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8 ~ 7.2 lb-ft)
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2010 Hyundai Accent Blue
2010 ENGINE Timing System - Accent
Fig. 43: Locating Timing Belt Upper Cover And Bolts
Courtesy of HYUNDAI MOTOR CO.
13. Install the water pump pulley and 4 bolts.
14. Install the power steering pump drive belt (C). (Refer to POWER STEERING PUMP ).
Fig. 44: Locating Power Steering Pump Drive Belt
Courtesy of HYUNDAI MOTOR CO.
15. Install the air conditioner compressor drive belt (B).
(Refer to AIR CONDITIONING SYSTEM ).
16. Install the alternator drive belt (A). (Refer to ALTERNATOR ).
17. Install the RH side cover (A) with 2 bolts (B).
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2010 ENGINE Timing System - Accent
Fig. 45: Locating RH Side Cover And Bolts
Courtesy of HYUNDAI MOTOR CO.
18. Install the RH front wheel.
Tightening torque:
88.3 ~ 98.1 N.m (9.0 ~ 10.0 kgf.m, 65.1 ~ 72.3 lb-ft)
19. Install the engine cover with bolts.
Tightening torque:
7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)
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