Hyundai Sonata 1991 Shop Manual page 77

VALVES AND VALVE SPRINGS
7. Screw the jet valve assembly into cylinder head by hand.
Tighten the jet valve to the specified torque with special tool
(09222-21300)
and a torque wrench while holding the spe- .
cial tool in line with the the centerline of jet valve.
Tightening torque
Jet valve assembly .
18-22
Nm
(180-220
kg.cm,
13-16
Ib.ft)
20-46