Crown Valve Cover Gasket Removal and Installation Method?
2 Answers
Crown valve cover gasket removal and installation method is as follows: 1. First remove the valve cover screws diagonally from both sides to the center, use a flat-head screwdriver to pry loose the valve cover, then remove the valve cover gasket. 2. Clean the valve cover with cleaner, clean the contact surface between the valve cover and cylinder head, install the new valve cover gasket, apply sealant, and tighten the screws diagonally from center to both sides. 3. Key points for paper gasket replacement: Use genuine accessory paper gasket, clean both mating surfaces of engine and valve cover, evenly apply grease on both sides of the paper gasket, align with locating pins and position properly, cover with valve cover, then evenly tighten all valve cover fastening bolts.
I remember a specific instance dealing with the replacement of the valve cover gasket on a Crown V6 engine. First, ensure the engine is completely cool before starting, and disconnect the negative battery terminal to prevent short circuits. The necessary tools include a socket wrench, a new gasket kit, carburetor cleaner, and gloves. During disassembly, remove all 15 screws from the valve cover (the exact number may vary by model), loosen them evenly, and then gently pry off the cover. Cleaning off the old gasket residue is crucial—use a scraper to remove hardened sealant layers and then spray the sealing surface clean with the cleaner. When installing the new gasket, lay it flat without twisting; some models require applying a small amount of silicone-based sealant in the grooves for enhanced sealing. After reassembling the cover, tighten the screws in a diagonal sequence to the torque specified in the manual (typically 8-10 Nm), avoiding excessive force in one go. Finally, start the engine and let it run for a few minutes to check for oil leaks. While the job may seem straightforward, neglecting proper cleaning can lead to repeated oil leaks. It’s recommended to inspect the gasket condition every 60,000 km. Doing it yourself can save over 200 yuan in repair costs, making the investment in tools well worth it.
