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articles:m104_head_gasket_replacement [2024/02/29 06:32] – [Preparation] john5788 | articles:m104_head_gasket_replacement [2024/03/02 06:02] – john5788 | ||
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===== Preparation ===== | ===== Preparation ===== | ||
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+ | - Set engine position to TDC | ||
+ | |||
+ | ===== Front Cover, Belt, and Accessories ===== | ||
+ | - Remove false firewall | ||
+ | - Remove valve cover | ||
+ | - Remove and disconnect smog pump / EGR switchover vacuum valve | ||
+ | - Remove fan clutch | ||
+ | - Remove accessory belt | ||
+ | - Remove smog pump | ||
+ | - Remove alternator | ||
+ | - Remove front lifting hook and coolant pipe | ||
+ | - Unplug camshaft advance solenoid and camshaft position sensor | ||
+ | - Remove heater pipe | ||
+ | - Disconnect hose clamp from auxiliary water pump hard line and pull hose off | ||
+ | - Remove 10mm screw from water pump | ||
+ | - Remove 5mm allen screw from idler pulley / fan bracket | ||
+ | - Remove belt idler pulley | ||
+ | - Remove 6x 13mm screws for front top timing cover | ||
+ | - Remove timing chain guide rail pin cover | ||
+ | - 5mm allen screw cover located at bottom right of the upper timing cover | ||
+ | - Use a slide hammer or a puller to remove the timing chain guide rail pin | ||
+ | - Pry upper front timing cover off. Avoid damaging the mating surface with prying tools. | ||
+ | - Remove chain tensioner | ||
+ | - Remove camshaft chain sprocket | ||
+ | |||
+ | ===== Exhaust Manifold ===== | ||
+ | - Remove smog pump / alternator bracket from engine block | ||
+ | - Remove EGR valve | ||
+ | - Disconnect pipe at rear | ||
+ | - Disconnect pipe at manifold | ||
+ | - Remove fasteners at flange and remove | ||
+ | - Disconnect both downpipes from exhaust manifolds underneath car | ||
+ | - Remove downpipes support clamp at transmission | ||
+ | - Remove copper self locking nuts securing exhaust manifolds to cylinder head | ||
+ | - Remove exhaust manifold |