Contents Wiring diagrams Section: Mechanical All sections

2.3L V6: Specifications Mazda Millenia I facelift

Crankcase Capacity

Crankcase capacity is 5.2 qts. (4.9L) after engine overhaul. Oil capacity with oil filter is 4.2 qts. (4.0L).

TORQUE SPECIFICATIONS

ApplicationFt. Lbs. (N.m)
Axle Shaft Bracket-To-Cylinder Block Bolt31-46 (42-62)
Baffle Plate Bolt14-18 (19-25)
Camshaft Position Sensor14-18 (19-25)
Camshaft Sprocket Bolt91-103 (123-140)
Connecting Rod Bolt
Step 116-20 (22-27)
Step 2Additional 83-97 Degrees
Coolant Outlet Bolt14-18 (19-25)
Crankshaft Pulley Bolt116-122 (157-166)
Cylinder Head Bolt (1)
Step 117-19 (23-26)
Step 2Additional 85-95 Degrees
Step 3Additional 85-95 Degrees
Drain Plug22-30 (30-41)
Engine Mount Bracket Above Water Pump-To-Cylinder Block Bolt32-44 (44-60)
Engine Mount Crossmember Retaining Bolt/Nut50-68 (67-93)
Engine Mount-To-Engine Mount Crossmember Nut55-77 (75-104)
Engine Mount-To-Transaxle Case Nut27-38 (37-52)
Engine-To-Transaxle Case Bolt50-73 (68-99)
Exhaust Manifold Bolt/Nut12-16 (16-22)
Flexplate Bolt45-49 (61-67)
Friction Gear Nut51-58 (69-79)
Front Exhaust Pipe-To-Exhaust Manifold Nut28-38 (38-51)
Front Suspension Crossmember Bolt69-93 (94-126)
Fuel Rail Bolt14-18 (19-25)
Generator Bolt12-16 (16-22)
Generator Bracket28-38 (38-51)
Intake Manifold Bolt/Nut14-18 (19-25)
Joint Shaft Bolt32-45 (43-61)
Knock Sensor14-25 (19-34)
Lower Control Arm Ball Joint
Bolt58-86 (79-116)
Nut41-59 (55-80)
Lower Cylinder Block Bolt (2)
Bolt "A"
Step 117-19 (23-26)
Step 2Additional 75-85 Degrees
Bolt "B"
Step 117-19 (23-26)
Step 2Additional 65-75 Degrees
Bolt "C"
Step 113-16 (18-22)
Step 2Additional 55-65 Degrees
Bolt "D"14-18 (19-25)
Lysholm Compressor Bracket14-18 (19-25)
No. 1 Idler Pulley Bolt28-38 (38-51)
No. 2 Idler Pulley Bolt28-38 (38-51)
Oil Cooler-To-Oil Filter Adapter Nut19-25 (25-34)
Oil Pan Bolt
Long Bolt14-18 (19-25)
Short Bolt(3)
Oil Pressure Switch9-13 (12-17)
Oil Pump Bolt14-18 (19-25)
Power Steering Pump Bracket Bolt(4)
Power Steering Pump Pulley Nut37-43 (50-58)
Relief Valve Plug42-50 (57-68)
Right (Timing Belt Side) Engine Mount
Nut55-75 (74-102)
Through-Bolt63-86 (86-116)
Selector Cable Nut12-14 (16-19)
Shift Rod-To-Transaxle Bolt (M/T)12-17 (16-23)
Spark Plug11-17 (15-23)
Stabilizer Bar Link Nut32-45 (43-61)
Stabilizer Rod-To-Transaxle Bolt (M/T)23-34 (31-46)
Starter-To-Transaxle Case Bolt27-38 (37-52)
Tensioner Pulley Bolt28-32 (38-44)
Throttle Body Bolt/Nut14-18 (19-25)
Tie Rod End Nut31-42 (42-57)
Timing Belt Tensioner Bolt14-18 (19-25)
Transaxle Mount & Bracket Bolt/Nut50-68 (68-92)
Vacuum Pump16-22 (22-30)
Water Pump Bolt14-18 (19-25)
Wheel Lug Nut65-87 (88-118)
INCH Lbs. (N.m)
Air Cooler/Duct Bolts69.5-95.4 (7.9-10.7)
Air Pipe-To-Intake Manifold Bolt71-97 (8-11)
Camshaft Bearing Cap Bolt (5)97-124 (11-14)
Crankshaft Position Sensor Bracket Bolt71-97 (8-11)
Cylinder Block Valley Cover Bolt71-97 (8-11)
Fuel Injector Retainer Bolt18-35 (2-4)
Ignition Coil40-57 (4.6-6.4)
Oil Jet27-45 (3-5)
Oil Pump Body Cover Bolt54-80 (6-9)
Oil Strainer Bolts69.5-95.4 (7.9-10.7)
Pick-Up Tube Bolt71-97 (8-11)
Pressure Regulator Bolt62-89 (7-10)
Seal Plate Bolt71-97 (8-11)
Timing Belt Cover Bolt71-97 (8-11)
Valve Cover Bolt (6)44-80 (5-9)
Water Pump Pulley Bolt69.5-95.4 (7.9-10.7)
(1) Tighten bolts to specification in sequence. (Схема №13) (2) Identify bolts and tighten bolts to specification in proper sequence. (Схема №40) (3) Tighten bolts to 69.5-95.4 INCH lbs. (8-10.7 N.m). (4) Tighten 2 upper bolts on front of bracket to 23-34 ft. lbs. (31-46 N.m). Tighten lower bolt on front of bracket to 14-19 ft. lbs. (19-26 N.m). Tighten bolt on rear of bracket-to-cylinder block to 24-33 ft. lbs. (32-45 N.m) (5) Tighten bolts to specification in sequence. (Схема №27) (6) Tighten bolts to specification in sequence. (Схема №16)
(1)Tighten bolts to specification in sequence. (Схема №13)
(2)Identify bolts and tighten bolts to specification in proper sequence. (Схема №40)
(3)Tighten bolts to 69.5-95.4 INCH lbs. (8-10.7 N.m).
(4)Tighten 2 upper bolts on front of bracket to 23-34 ft. lbs. (31-46 N.m). Tighten lower bolt on front of bracket to 14-19 ft. lbs. (19-26 N.m). Tighten bolt on rear of bracket-to-cylinder block to 24-33 ft. lbs. (32-45 N.m)
(5)Tighten bolts to specification in sequence. (Схема №27)
(6)Tighten bolts to specification in sequence. (Схема №16)

TORQUE SPECIFICATIONS

GENERAL SPECIFICATIONS

ApplicationSpecification
Displacement137 Cu. In. (2.3L)
Bore3.16" (80.3 mm)
Stroke2.92" (74.2 mm)
Compression Ratio10.0:1
Fuel SystemMFI

GENERAL SPECIFICATIONS

CRANKSHAFT, MAIN BEARINGS & CONNECTING ROD BEARINGS SPECIFICATIONS

ApplicationIn. (mm)
Crankshaft
End Play
Standard.0032-.0111 (.080-.282)
Maximum.0126 (.320)
Maximum Runout.0006 (.015)
Main Bearing Journals
Journal Diameter2.4385-2.4391 (61.938-61.955)
Journal Out-Of-Round.0016 (.04)
Oil Clearance
Standard.0015-.0022 (.037-.057)
Maximum.0025 (.064)
Connecting Rod Journals
Journal Diameter2.0843-2.0848 (52.940-52.955)
Journal Out-Of-Round.0012 (.030)
Oil Clearance
Standard.0010-.1290 (.023-.043)
Maximum.0031 (.080)

CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS

CONNECTING RODS SPECIFICATIONS

ApplicationIn. (mm)
Pin Bore Diameter.8269-.8273 (21.003-21.014)
Crankpin Bore Diameter2.2047-2.2053 (56.000-56.015)
Center-To-Center Length5.425-5.429 (137.80-137.90)
Maximum Bend.002 Per 1.969 (.05 Per 50.01)
Side Play
Standard.0071-.129 (.178-.330)
Maximum.015 (.40)

CONNECTING RODS

PISTONS, PISTON PINS & PISTON RINGS SPECIFICATIONS

ApplicationIn. (mm)
Pistons
Clearance
Standard.0004-.0014 (.010-.036)
Maximum.0044 (.112)
Diameter3.1603-3.1615 (80.271-80.303)
Pin Bore Diameter.8263-.8267 (20.988-21.000)
Pins
Diameter.8263-.8264 (20.987-20.993)
Piston Fit.0004-.0010 (.8269-.8273)
Rod Fit (Interference Fit).005-.0013 (.0002-.0005)
Rings
No. 1
End Gap (1).006-.0098 (.15-.25)
Side Clearance (2).0014-.0025 (.035-.065)
No. 2
End Gap (1).009-.013 (.25-.35)
Side Clearance (2).0012-.0025 (.030-.065)
No. 3 (Oil)
End Gap (1).0079-.0275 (.20-.70)
Side Clearance (2).0028-.0062 (.07-.016)
(1) Maximum end gap is .040" (1.0 mm). (2) Maximum side clearance is .006" (.15 mm).
(1)Maximum end gap is .040" (1.0 mm).
(2)Maximum side clearance is .006" (.15 mm).

PISTONS, PINS & RINGS

CYLINDER BLOCK SPECIFICATIONS

ApplicationIn. (mm)
Cylinder Bore
Standard Diameter3.1615-3.1622 (80.300-80.322)
Maximum Taper.0009 (.022)
Maximum Out-Of-Round.0008 (.020)
Maximum Deck Warpage.0059 (.15)

CYLINDER BLOCK

ENGINE VALVES & VALVE SPRINGS SPECIFICATIONS

ApplicationSpecification
Intake Valves
Face Angle45°
Head Diameter1.253-1.265" (31.85-32.15 mm)
Margin.306-.052" (.775-1.325 mm)
Valve Length4.2386-4.2700" (107.66-108.46 mm)
Stem Diameter
Standard.2351-.2356" (5.970-5.985 mm)
Minimum.2331" (5.920 mm)
Exhaust Valves
Face Angle45°
Head Diameter1.080-1.092" (27.45-27.75 mm)
Margin.054-.074" (1.355-1.905 mm)
Valve Length4.2406-4.2720" (107.71-108.51 mm)
Minimum3.7200" (94.49 mm)
Stem Diameter
Standard.2349-.2354" (5.965-5.980 mm)
Minimum.2329" (5.915 mm)
Valve Springs
Length @ 42-46 lbs. (187-205 N)1.413" (35.90 mm)
Out-Of-Square.062" (1.57 mm)

VALVES & VALVE SPRINGS

CYLINDER HEAD SPECIFICATIONS

ApplicationSpecification
Cylinder Head Height (1)
At Measurement "B"5.031-5.035" (127.81-127.91 mm)
At Measurement "A"5.743-5.747" (145.89-145.99 mm)
Maximum Warpage (2)
Cylinder Block Surface.004" (.10 mm)
Manifold Surface.006" (.15 mm)
Tappet Bore1.1811-1.1820" (30.000-30.025 mm)
Valve Installed Height
Standard1.709" (43.4 mm)
Serviceable1.709-1.728" (43.4-43.9 mm)
Valve Seats
Intake Valve
Seat Angle45°
Seat Width.031-.055" (.80-1.40 mm)
Exhaust Valve
Seat Angle45°
Seat Width.031-.055" (.80-1.40 mm)
Valve Guides
Intake Valve
Valve Guide I.D..2366-.2374" (6.01-6.03 mm)
Valve Guide Installed Height.528-.551" (13.4-14.0 mm)
Valve Stem-To-Guide Oil Clearance
Standard.0010-.0024" (.025-.060 mm)
Maximum.008" (.20 mm)
Exhaust Valve
Valve Guide I.D..2366-.2374" (6.01-6.03 mm)
Valve Guide Installed Height.469-.492" (11.9-12.5 mm)
Valve Stem-To-Guide Oil Clearance
Standard.0012-.0026" (.030-.065 mm)
Maximum.008" (.20 mm)
(1) (Схема №31) (2) DO NOT remove more than.006" (.15 mm) material from original surface of cylinder head.
(1)(Схема №31)
(2)DO NOT remove more than .006" (.15 mm) material from original surface of cylinder head.

CYLINDER HEAD

CAMSHAFT SPECIFICATIONS

ApplicationIn. (mm)
End Play.0020-.0039 (.05-.10)
Journal Runout.0008 (.020)
Journal Diameter (1) (2)
No. 1 Journal
Left Exhaust Camshaft
Standard1.1802-1.1809 (29.975-29.995)
Minimum1.1781 (29.925)
Left Intake Camshaft
Standard1.0213-1.0220 (25.940-25.960)
Minimum1.0193 (25.890)
Right Exhaust Camshaft
Standard1.0213-1.0220 (25.904-25.960)
Minimum1.0193 (25.890)
Right Intake Camshaft
Standard1.1801-1.1809 (29.975-29.995)
Minimum1.1781 (29.925)
No. 2, 3 & 4 Journals
Standard1.0201-1.0208 (25.910-25.930)
Minimum1.0181 (25.860)
No. 5 Journal
Standard1.0213-1.0220 (25.940-25.960)
Minimum1.0193 (25.890)
Oil Clearance (2)
No. 1 & 5 Journals
Standard.0016-.0031 (.040-.081)
Maximum.0047 (.120)
No. 2, 3 & 4 Journals
Standard.0028-.0043 (.070-.111)
Maximum.0059 (.150)
Lobe Height
Exhaust1.6869 (42.847)
Intake1.7179 (43.635)
(1) Left and right as viewed from rear of engine. (2) The No. 1 journal is timing belt end and No. 5 journal is flywheel end.
(1)Left and right as viewed from rear of engine.
(2)The No. 1 journal is timing belt end and No. 5 journal is flywheel end.

CAMSHAFT

TAPPET SPECIFICATIONS

ApplicationIn. (mm)
Oil Clearance.0009-.0025 (.025-.066)

TAPPET