Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2007 Mazda Mazdaspeed6 L4-2.3L TurboFACTORY OEM SERVICE PROCEDURE
Torque Specifications
Cylinder Head
Measure the length of each cylinder head bolt.
- Replace any cylinder head bolts that exceed the maximum length.
Cylinder head bolt length
Standard 144.7 - 145.3 mm (5.700 - 5.720 in)
Maximum 146 mm (5.748 in)
Tightening procedure
(1) 3 - 11 Nm (30.6 - 112 kgf.cm, 26.6 - 97.3 in.lbf)
(2) 13 - 17 Nm (1.4 - 1.7 kgf.m, 9.6 - 12.5 ft.lbf)
(3) 43 - 47 Nm (4.4 - 4.7 kgf.m, 31.8 - 34.6 ft.lbf)
(4) 88° - 92°
(5) 88° - 92°
Camshaft Bearing
Install the camshaft caps and temporarily tighten the camshaft cap bolts evenly in two or three passes, and then tighten the camshaft cap bolts using the following two steps, in the order shown in the figure.
Tightening procedure
(1) 5.0 - 9.0 Nm (51.0 - 91.7 kgf.cm, 44.3 - 79.6 in. lbf)
(2) 14.0 - 17.0 Nm (1.5 - 1.7 kgf.m, 10.4 - 12.5 ft. lbf)
Crankshaft Main Bearing
Tightening procedure
(1) Apply engine oil to all bolts.
(2) 3 - 7 Nm (30.6 - 71.3 kgf-cm, 26.6 - 61.9 in lbf)
(3) 23 - 27 Nm (2.4 - 2.7 kgf-m, 17 - 19.9 ft lbf)
(4) 38 - 42 Nm (3.9 - 4.2 kgf-m, 28.1 - 30.9 ft lbf)
(5) Loosen all the bolts (until bolts are torque-free)
(6) 3 - 7 Nm (30.6 - 71.3 kgf-cm, 26.6 - 61.9 in lbf)
(7) 18 - 22 Nm (1.9 - 2.2 kgf-m, 13.3 - 16.2 ft lbf)
(8) 87.5° - 92.5°
Crankshaft Pulley
Tightening procedure
(1) 96 - 104 Nm (9.8 - 10.6 kgf.m, 70.9 - 76.7 ft.lbf)
(2) 87° - 93°
Oil Pump
Tighten the oil pump bolts in two steps in the order shown in the figure.
Tightening torque
Step 1 8 - 12 Nm (82 - 122 kgf.cm, 71 - 105 in. lbf)
Step 2 17 - 23 Nm (1.8 - 2.3 kgf.m, 12.6 - 16.9 ft. lbf)
Water Pump
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
