LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2004 >> Optima EX, 2.7 8 >> Repair and Diagnosis >> Engine Mechanical >> Lubrication System >> 2.7L V6 Engine >> General >> Torque Specifications
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Torque Specifications

TORQUE SPECIFICATIONS

Application Ft. Lbs. (N.m)
Air Intake Surge Tank-To-Intake Manifold Bolt/Nut 11-14 (15-19)
Auto Tensioner Fixed Bolt 15-20 (20-27)
Camshaft Sprocket Bolt 66-81 (90-110)
Catalytic Converter-To-Center Exhaust Pipe Nuts 22-30 (30-40)
Center Exhaust Pipe-To-Main Muffler Nuts 22-30 (30-40)
Connecting Rod Bolts
Step 1 12-15 (16-20)
Step 2 Tighten An Additional 90-95 Degrees
Crankshaft Pulley Bolt 133-140 (180-190)
Cylinder Head Bolts (Cold Engine) (1)
Step 1 18 (25)
Step 2 Tighten An Additional 60-64 Degrees
Step 3 Tighten An Additional 45-49 Degrees
Drive Belt Pulley Bolt 26-41 (35-55)
Drive Belt Tensioner Bolt 15-20 (20-27)
Drive Plate & Adapter Plate Bolt 54-57 (73-77)
Engine Coolant Inlet Fitting Attaching Bolts 13-15 (17-20)
Engine Coolant Pump-To-Cylinder Block Nut 11-16 (15-22)
Engine Coolant Temperature Sensor 15-30 (20-40)
Engine Hanger Bracket-To-Engine Bolt 15-20 (20-27)
Engine Mounting Bracket Bolts/Nuts 44-59 (60-80)
Engine Mounting Insulator Bolt 66-81 (90-110)
Exhaust Manifold-To-Cylinder Head Nuts 18-22 (25-30)
Flywheel Bolt 54-57 (73-77)
Front Exhaust Pipe-To-Catalytic Converter Bolts 30-44 (40-60)
Front Exhaust Pipe-To-Exhaust Manifold Nuts 22-30 (30-40)
Front Roll Stopper Bracket-To-Sub Frame Bolts 44-59 (60-80)
Front Roll Stopper Bracket-To-Transaxle Bolts 44-59 (60-80)
Front Roll Stopper Insulator Bolt & Nut 37-48 (50-65)
Generator Mount Bolt (Generator Mount Bracket Side) 15-22 (20-30)
Generator Mount Bracket-To-Engine Bolt 15-22 (20-30)
Generator Mount Nut (Engine Front Case Side) 15-22 (20-30)
Intake Manifold-To-Cylinder Head Nuts 15 (20)
Main Bearing Cap Bolts
M8
Step 1 10-14 (13-19)
Step 2 Tighten An Additional 90-95 Degrees
M10
Step 1 20-24 (27-33)
Step 2 Tighten An Additional 90-95 Degrees
Oil Filter 13-18 (17-25)
Oil Pan Drain Plug 26-33 (35-45)
Oil Relief Valve Plug 30-37 (40-50)
Oil Screen Bolt 11-16 (15-22)
Oxygen Sensor-To-Exhaust Manifold 30-37 (40-50)
Power Steering Oil Pump Bracket-To-Front Cylinder Head Assembly Bolt 13-19 (17-26)
Power Steering Oil Pump-To-Bracket Bolt 13-19 (17-26)
Rear Roll Stopper Bracket-To-Sub Frame Bolts 37-48 (50-65)
Rear Roll Stopper Bracket-To-Transaxle Bolts 37-48 (50-65)
Rear Roll Stopper Insulator Bolt/Nut 37-48 (50-65)
Starter-To-Engine
Bolt 20-25 (27-34)
Nut 15-22 (20-30)
Surge Tank Stay Bolt 11-15 (15-20)
Throttle Body-To-Surge Tank Bolts 11-15 (15-20)
Timing Belt Idler Pulley Bolt 37-44 (50-60)
Timing Belt Tensioner Arm Fixed Bolt 26-41 (35-55)
Timing Belt Tensioner Bolt 15-20 (20-27)
Timing Belt Tensioner Pulley Bolt 32-41 (43-55)
Transaxle Mounting Bracket Bolts 44-59 (60-80)
Transaxle Mounting Insulator Bolt 66-81 (90-110)
Transaxle Mounting Sub Bracket Nut 44-59 (60-80)
Upper Oil Pan Bolts (2)
8 x 22 mm 14-21 (19-28)
10 x 38 mm 22-31 (30-42)
Water Outlet Fitting Bolt 13-15 (17-20)
INCH Lbs. (N.m) 
Air Cleaner Body Installation Bolt 71-106 (8-12)
Air Cleaner Mounting Bolts 71-106 (8-12)
Crankshaft Position Sensor Wheel Screw 44-53 (5-6)
Cylinder Head Cover Bolts (3)
Step 1 (4)
Step 2 44-53 (5-6)
Delivery Pipe Installation Bolts 89-133 (10-15)
Distributor Adapter Assembly-To-Engine Bolt 106-133 (12-15)
Exhaust Manifold Heat Protector-To-Exhaust Manifold Bolts 106-133 (12-15)
Fuel Hose Clamp-To-Rear Cylinder Head Assembly Bolt 106-133 (12-15)
Lower Oil Pan Bolt 89-106 (10-12)
Main Muffler Hanger Support Bracket Bolts 89-133 (10-15)
Oil Level Gauge Guide-To-Engine Bolt 106-133 (12-15)
Oil Pressure Switch 71-106 (8-12)
Oil Pump Case Bolts 106-133 (12-15)
Oil Pump Cover Screw 71-106 (8-12)
Oil Seal Case Bolt 89-106 (10-12)
Rear Plate Bolt 71-89 (8-10)
Timing Belt Cover Bolt 89-106 (10-12)
Transaxle Mounting Plate Bolt 89-106 (10-12)
Upper Oil Pan Bolts (2) 44-62 (5-7)
(1) Tighten cylinder head bolts in sequence. See Fig 1.
(2) Tighten oil pan bolts in sequence. See Fig 2.
(3) Tighten bolts in sequence. See Fig 3.
(4) Tighten bolts to approximately half torque in sequence. See Fig 3.
Fig 1: Cylinder Head Bolt Tightening Sequence
G00010624Courtesy of HYUNDAI MOTOR CO.
Fig 2: Oil Pan Bolt Tightening Sequence
G00010633Courtesy of HYUNDAI MOTOR CO.
Fig 3: Cylinder Head Cover Bolt Tightening Sequence
G00351840Courtesy of KIA MOTORS AMERICA, INC.