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.
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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 261 (ENGINE MECHANICAL)ENGINE SPECIFICATIONSCYLINDER HEAD
2004 Toyota Matrix XR, FWD, Standard
Cylinder Head
2004 Toyota Matrix XR, FWD, StandardSECTION Cylinder Head
WARNING: This page is about a different car, the 2002 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
CYLINDER HEAD
| Application | Specification | |||
|---|---|---|---|---|
| Maximum Warpage | ||||
| Cylinder Block Surface | .0039 in. (0.100 mm) | |||
| Manifold Surface | .0039 in. (0.100 mm) | |||
| Valve Seats | ||||
| Intake Valve | ||||
| Seat Angle | 45 degrees | |||
| Seat Width | .039-.055 in. (1.00-1.40 mm) | |||
| Exhaust Valve | ||||
| Seat Angle | 45 degrees | |||
| Seat Width | .039-.055 in. (1.00-1.40 mm) | |||
| Valve Guides | ||||
| Intake Valve | ||||
| Valve Guide Cylinder Head Bore I.D. | ||||
| Standard Valve Guide | .4049-.4057 in. (10.284-10.305 mm) | |||
| Oversize Valve Guide | .4069-.4077 (10.335-10.356 mm) | |||
| Valve Guide I.D. | .2169-.2177 in. (5.509-5.530 mm) | |||
| Valve Stem-To-Guide Oil Clearance | ||||
| Standard | .0010-.0024 in. (.025-.061 mm) | |||
| Wear Limit | .0031 in. (.079 mm) | |||
| Exhaust Valve | ||||
| Valve Guide Cylinder Head Bore I.D. | ||||
| Standard Valve Guide | .4049-.4057 in. (10.284-10.305 mm) | |||
| Oversize Valve Guide | .4069-.4077 (10.335-10.356 mm) | |||
| Valve Guide I.D. | .2169-.2177 in. (5.509-5.530 mm) | |||
| Valve Stem-To-Guide Oil Clearance | ||||
| Standard | .0012-.0026 in. (.030-.066 mm) | |||
| Wear Limit | .0039 in. (.990 mm) | |||
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.