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.
2012 Toyota Matrix FWD L4-1.8L (2ZR-FE)FACTORY OEM SERVICE PROCEDURE
Timing Cover
TIMING CHAIN COVER SUB-ASSEMBLY
Temporarily install the timing chain cover sub-assembly with the 19 bolts.
Bolt Length
Fully tighten the timing chain cover sub-assembly with the 26 bolts as shown in the illustration.
Bolt A, E - Torque 26 Nm (260 kgf-cm, 19 ft-lbf)
Bolt B, C - Torque 51 Nm (520 kgf-cm, 37 ft-lbf)
Bolt D - Torque 10 Nm (102 kgf-cm, 7 ft-lbf)
Temporarily install the timing chain cover sub-assembly with the 19 bolts.
Bolt Length
Fully tighten the timing chain cover sub-assembly with the 26 bolts as shown in the illustration.
Bolt A, E - Torque 26 Nm (260 kgf-cm, 19 ft-lbf)
Bolt B, C - Torque 51 Nm (520 kgf-cm, 37 ft-lbf)
Bolt D - Torque 10 Nm (102 kgf-cm, 7 ft-lbf)
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.