Home Auto Repair 1998 Nissan Sentra TIMING CHAIN Removal

1998 Nissan Sentra TIMING CHAIN Removal

Download CAUTION: If camshaft or crankshaft is rotated with timing chain disconnected, piston will contact valves, resulting in bent valves. NOTE: For reassembly reference, apply paint marks to timing chain and camshaft sprockets before removing. Removal 1. Release fuel pressure. See FUEL PRESSURE RELEASE . Drain coolant from radiator and cylinder block (drain plug is on left side of block, between flywheel and exhaust manifold). Remove accessory drive belts and power steering pump bracket. Remove intake air duct. Remove right front wheel and splash shield. 2. Remove engine undercovers. Remove front exhaust pipe. Remove front engine mount from cylinder head. Remove cylinder head cover, distributor cap and spark plugs. Remove intake manifold support. Set piston No. 1 at TDC of compression stroke. For installation reference, mark rotor in relation to distributor housing and distributor housing in relation to cylinder head. Remove distributor. 3. Remove cylinder head front cover. See Fig. 4 . Remove water pump pulley and thermostat housing. Remove chain tensioner and guide. See Fig. 6 .