Tightening Cylinder Head Bolts; Adjusting Valve Clearance; Adjusting Drive Belt And Tensioner - Hyundai Tiburon 2003 Workshop Manual

Max. 100kpa (1.0 kg/cm², 14psi) between cylinders
10. If a cylinder's compression or pressure differential is outside the specification, add a small amount of oil through the spark
plug hole, andrepeat steps 6 to 9.
(1) If the addition of oil causes the compression to rise, it is possible that the piston ring is worn.
(2) If the compression remains the same, valve seizure, poor valve seating or a compression leak in the cylinder head
gasket are all possible causes.
Tightening torque
Spark plug : 20 ~ 30Nm (200 ~ 300kg.cm, 14 ~ 22 lb.ft)

TIGHTENING CYLINDER HEAD BOLTS

1. First loosen slightly and then tighten to the specified torque.
Tightening torque
Cylinder head bolts cold [Engine temperature approximately 20° C (68° F)] :
25Nm (250kg.cm, 18lb.ft) + (58° ~ 62° ) + (43° ~ 47° )
2. Use the torque - angle method to torque the head bolts.
3. Be sure to follow the specific torque sequence as shown in the illustration.
Run the engine to normal operating temperature and let it cool, then re-torque the bolts to specifications.

ADJUSTING VALVE CLEARANCE

As the intake and exhaust valves are equipped with hydraulic lash adjusters, there is no need to adjust the valve clearance.
The proper function of the hydraulic lash mechanism may be determined by checking for tappet noise. When there is a tappet
noise or any unusual noise, check the hydraulic lash adjusterby removing and bleeding or replacing it.

ADJUSTING DRIVE BELT AND TENSIONER

1. Hang the belt on the pulley of the tensioner and install the tensioner.
(If the tensioner is already installed, loosen its mounting bolts to allow belt installation.)
Tightening torque
Tensioner assembly bolt :
20 ~ 27 Nm (200 ~ 270 kg.cm, 14 ~ 20 lb.ft)
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24.04.2008