B18C cylinder head removal and installation applies to Acura Integra GSR models from 1994-2001.
Removal
- Allow engine to cool to less than 100°F (38°C). Disconnect negative battery cable. Drain cooling system. Release fuel pressure. Mark and disconnect all hoses. Remove strut brace. Rotate crankshaft pulley counterclockwise until No. 1 piston is at TDC of compression stroke and timing marks are aligned. See figure.
- Remove intake air duct. Remove EVAP canister hose. Remove water by-pass and PCV hoses. Remove brake booster vacuum and fuel return hoses. Remove throttle cable from throttle body.
- Remove/disconnect engine wiring harness connectors and harness clamps from cylinder head and intake manifold. Remove spark plug wires and distributor. Remove upper radiator hose and heater hose. Disconnect engine ground cable at valve cover.
- Remove power steering pump with hoses attached, and wire aside. Remove heat shield. Remove A/C compressor belt and generator belt. Remove cruise control actuator. Remove side engine mount. Remove valve cover. Remove timing belt.
- Remove camshaft sprockets and back cover. Remove exhaust manifold and intake manifold. Loosen valve adjuster screws. Remove camshaft retainer plates, camshaft retainers and camshafts. In reverse order of tightening sequence, loosen cylinder head bolts 1/3 turn at a time until all are loose. See figure. Remove cylinder head.
Inspection
- Ensure all mating surfaces are clean. Measure cylinder block surface for warpage. Ensure cylinder block warpage does not exceed 0.003″ (0.08 mm).
- Measure cylinder head warpage. Resurface cylinder head if warpage is greater than 0.002″ (0.05 mm). Maximum resurface limit is 0.002″ (0.05 mm).
- Ensure cylinder head dowel pins, oil control jet, and “O” ring are installed in block. See figure.
Installation
- Ensure No. 1 piston is at TDC of compression stroke. Apply a light coat of engine oil to cylinder head bolt threads and bottom of bolt head. Install cylinder head using NEW gasket and tighten cylinder head bolts to specification in 2 stages and in sequence. See figure.
- Install intake manifold onto cylinder head with NEW gasket and tighten nuts to specification in a crisscross pattern, beginning with inner nuts. Install exhaust manifold with NEW gasket and NEW nuts. Tighten nuts to specification in a crisscross pattern, beginning with inner nuts.
- Install camshafts. Install camshaft sprockets. Install timing belt. To complete installation, reverse removal procedure. Tighten remaining bolts/nuts to specification.
SPECIFICATIONS
- Cylinder Head
- Height: 5.589-5.593″ (141.96-142.06 mm)
- Maximum Warpage: 0.002″ or 0.05 mm (Maximum resurface limit is 0.008″ or 0.20 mm)
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