PT2 - 2012 Mustang GT Timing Cover gasket replacement
This video (part 2) continues the replacement of the timing cover gasket on a 2012 Mustang GT, focusing on the detailed removal, cleaning, gasket installation, and reassembly steps required to stop leaks at the timing cover. The walkthrough highlights preparation, careful surface cleaning, proper sealant application where appropriate, torqueing the cover bolts to spec, and reinstalling removed accessories.
Build Sequence
1. Preparation and safety
Park on level ground, disconnect the battery, lift and support the car if needed, and gather all parts and tools. Drain engine coolant if the timing cover removal exposes coolant passages and remove the serpentine belt and accessory drive components to access the timing cover.
2. Remove harmonic balancer and front accessories
Remove the crank pulley/harmonic balancer using a puller and remove any accessory brackets and components obstructing the timing cover (alternator bracket, A/C bracket, power steering lines as needed).
3. Unbolt and remove timing cover
Carefully unfasten all timing cover bolts in a recommended sequence, then remove the timing cover. Inspect the cover for cracks or damage and set it aside for cleaning or replacement if necessary.
4. Clean mating surfaces
Thoroughly clean the engine block and timing cover mating surfaces using a gasket scraper and solvent to remove old gasket material and oil residue. Ensure surfaces are dry and free of debris.
5. Replace seals and position new gasket
Install the new front crankshaft seal if replacing, apply RTV where specified by gasket instructions, then position the new timing cover gasket and/or sealing compound according to manufacturer guidance.
6. Reinstall timing cover and torque bolts
Reinstall the timing cover carefully, start bolts by hand, and torque them in the correct sequence to factory specifications using a torque wrench. Replace any bolts that are damaged or torque-to-yield as necessary.
7. Reinstall accessories and harmonic balancer
Reinstall the harmonic balancer/crank pulley and all removed accessory brackets, belts, and components. Ensure proper belt routing and tension.
8. Refill fluids, reconnect battery, and test
Refill coolant and/or any fluids drained earlier, reconnect the battery, start the engine, and check for leaks around the timing cover. Re-torque bolts after initial run if recommended and re-check for leaks after a short test drive.
Frequently Asked Questions
Can I reuse the old gasket or bolts?
Reusing the old gasket is not recommended — always install a new gasket. Replace any bolts that are damaged or specified as torque-to-yield by OEM service information; otherwise reuse is acceptable if in good condition.
VIEW FULL ARTICLE →How long will this job take for a DIYer?
Expect roughly 4–6 hours for an intermediate DIYer who has the necessary tools and experience. Time varies based on experience, whether other parts (seals, bolts) are replaced, and any unexpected issues.
VIEW FULL ARTICLE →How do I know if the timing cover gasket is properly sealed?
After reassembly, run the engine and inspect for oil leaks around the cover. Also verify coolant (if applicable) and oil levels, and recheck after a short test drive. No visible seepage and stable fluid levels indicate a good seal.
VIEW FULL ARTICLE →Do I need special tools to replace the timing cover gasket?
You need basic hand tools (sockets, ratchet), a harmonic balancer puller, and a torque wrench. An engine support or jack may be needed if mounts are loosened. Most specialty tools beyond those are rarely required for the gasket replacement itself.
VIEW FULL ARTICLE →Related Builds
Parts Used (4)
Replace the front crank seal while timing cover is off to prevent future leaks.
Full timing cover gasket set required for 2012 Mustang GT (Coyote 5.0). May come as part of a kit with seals.
Replace any damaged or corroded bolts; some OEM bolts may be torque-to-yield and should not be reused.
Used on specific areas as called out by gasket instructions; use OEM-recommended sealant where required.