Water pump replacement applies to all Acura Integra 1994-2001 models.

Water Pump Removal

Remove timing belt. Remove camshaft sprockets and timing belt back cover. Remove 5 retaining bolts, water pump, and “O” ring.

Water Pump Installation

1. Clean gasket surfaces. Install water pump. Install NEW “O” ring. To complete installation, reverse removal procedure. Tighten bolts to specifications.
2. Adjust timing belt tension. Fill and bleed air from cooling system.

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B18C valve clearance adjustment applies to Acura Integra 1994-2001.

Warning: Only rotate engine in direction of normal rotation (counterclockwise as viewed from front of engine). Clockwise rotation may cause timing belt to jump camshaft pulley teeth.

Valves lash adjustments should be done cold, when cylinder head temperature is less than 100°F (38°C). Adjustment procedures are the same for both intake and exhaust valves.

1. Remove valve cover. Rotate crankshaft counterclockwise so No. 1 piston is at TDC of compression stroke. Ensure UP marks on camshaft sprockets are at top pointing up, and TDC grooves on pulleys are aligned with TDC mark on back cover.
2. Adjust valve clearance on both valves for No. 1 cylinder. Loosen lock nuts. Rotate adjuster screw until clearance is as specified. Tighten lock nut to 15 ft. lbs. (20 N.m). Recheck adjustment. See valve clearance specs table.
3. Rotate crankshaft 180 degrees counterclockwise (camshaft sprockets turn 90 degrees) until No. 3 piston is at TDC of compression stroke. UP marks on camshaft sprockets should point to exhaust side of cylinder head. Adjust valve clearance on both valves for No. 3 cylinder.
4. Rotate crankshaft 180 degrees counterclockwise until No. 4 piston is at TDC of compression stroke. Ensure UP marks on camshaft sprockets are pointing down. Adjust valve lash clearance on both valves for No. 4 cylinder.
5. Rotate crankshaft 180 degrees counterclockwise until No. 2 piston is at TDC of compression stroke. Ensure UP marks on camshaft sprockets are pointing to intake side of cylinder head. Adjust valve clearance on both valves for No. 2 cylinder. Install NEW valve cover gasket. Install valve cover.

Valve Clearance Specifications – In. (mm)

• Exhaust
  • 0.007-0.008 (0.18-0.20)
• Intake
  • 0.006-0.007 (0.15-0.18)

Got questions or comments on how to adjust valve clearances on B18C engines? Let us know below!

How to remove and install shocks applies to all Acura Integra models between 1994-2001.

Shock Removal
Raise and support front of Integra. Remove wheel assembly and brake hose clamp from strut. Remove strut-to-fork pinch bolt and strut fork bolt. Remove strut fork assembly. Remove cap and nuts from top of strut. Remove strut assembly.

FYI: Struts and strut forks are not interchangeable from side to side.

Shock Disassembly
Using a spring compressor, compress spring slightly to remove spring tension. Hold strut rod with Allen wrench and remove spring seat nut. Slowly release spring compressor. Remove spring. Disassemble strut, noting relative position of parts.

Shock Reassembly
Inspect parts for cracks, deterioration, or damage. Check shock absorber for leaks and improper operation. Replace strut if resistance is weak, uneven, or jerky when strut is compressed. Replace worn or damaged parts. Position mounting base with one stud aligned within the following range of the tab on strut housing. To complete reassembly, reverse disassembly procedure.

Acura Integra Strut Housing Alignment: 58.5-64.5 degrees

Shock Installation
1. Loosely install the strut onto the frame with aligning tab facing inside, and loosely install the nuts to the studs in the strut tower holes. Install strut fork onto lower control arm. Position strut assembly so tab on strut housing aligns with slot in fork. Loosely install the bolts and nuts. Place jack under knuckle, and raise it until vehicle just lifts from safety stand.

Strut mount base nuts must be tightened with strut under vehicle load.

2. In the following order, tighten the upper fork bolt, the lower bolt self-locking nut, and the upper strut-tobody nuts. To complete installation, reverse removal procedure. Tighten nuts and bolts to specification.

Torque Specifications – Ft. Lbs. (N.m)

• Brake Caliper Bolt: 80 (108)
• Lower Ball Joint Castle Nut: 36-43 (49-58)
• Lower Control Arm Anchor Bolt: 47 (64)
• Radius Arm Bracket Anchor Bolts: 66 (89)
• Radius Arm Nut: 61 (83)
• Spindle Nut: 134 (181)
• Stabilizer Bar Bushing Bracket: 16 (22)
• Stabilizer Link-To-Control Arm Nut: 16 (22)
• Stabilizer Link Ball Joint-To-Stabilizer Bar Nut: 22 (30)
• Strut Fork Pinch Bolt: 32 (43)
• Strut Fork-To-Control Arm Nut: 47 (64)
• Strut Mounting Base Nut: 36 (49)
• Strut Mounting Nut: 22 (30)
• Tie Rod End-To-Knuckle Castle Nut:
  • 1997: 29-35 (39-47)
  • 1998: 32 (43)
• Upper Ball Joint Castle Nut: 29-35 (39-47)
• Upper Control Arm Nut: 47 (64)
• Wheel Lug Nut: 80 (108)
• Speed Sensor/Harness Mounting Bolts: 84 inch pounds
• Splash Guard Bolt: 44 (5) inch pounds

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Exhaust and intake manifold removal and installation applies to all Acura Integra 1994-2001 models.

Intake Manifold Removal

1. Disconnect negative battery cable. Release fuel pressure. Carefully remove radiator cap to release cooling system pressure. Drain cooling system. Remove upper and lower radiator hoses. Remove air intake duct and air cleaner assembly.
2. Disconnect fuel inlet and return lines. Mark and disconnect vacuum hoses and wiring harness connectors. Remove EVAP canister hose from throttle body.
3. Remove brake booster and PCV hoses from intake manifold. Disconnect throttle cable. Remove coolant by-pass hoses. Remove intake manifold nuts, intake manifold, and gasket.

Intake Manifold Installation

Clean gasket surfaces. Install intake manifold, using NEW intake manifold gasket. Tighten intake manifold nuts to specification, using a crisscross pattern in 2-3 stages, beginning with inner nuts. To complete installation, reverse removal procedure. Refill and bleed air from cooling system.

Exhaust Header Manifold Removal

Disconnect negative battery cable. Remove oil dipstick. Remove exhaust manifold heat shield. Disconnect exhaust pipe from exhaust manifold. Remove exhaust manifold bracket. Disconnect oxygen sensor wiring. Remove exhaust manifold bolts. Remove exhaust manifold and gasket.

Exhaust Header Manifold Installation

To install, reverse removal procedure. Tighten bolts to specification

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Please take note that this B18C swap post only applies to removing and installing the Acura Integra 1994-2001 B18C engine and does not cover swapping the engine into another Honda vehicle.

For installation reference, label all electrical connectors, vacuum hoses, and fuel lines before removal. Also, place mating marks on engine hood and other major assemblies before removal.

When battery is disconnected, the Integra’s computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. Obtain radio anti-theft codes, if necessary, before disconnecting battery.

Fuel system is under pressure in the Integra. Release pressure before servicing fuel system components.

B18C and B18C5 ENGINE REMOVAL

1. Remove hood. Remove strut brace. Disconnect battery cables. Disconnect battery cables from underhood fuse/relay box and ABS fuse/relay box. Remove intake air duct, air cleaner housing assembly and bracket. Remove EVAP canister hose.

2. Disconnect B18C engine wire harness connectors on right side of engine compartment. Release fuel pressure (view beginning of page). Remove fuel feed and fuel return lines. Remove brake booster vacuum hose. Remove throttle cable by loosening lock nut and removing cable end from accelerator linkage.

3. Disconnect engine wire harness connectors on left side of engine compartment. Remove harness clamps. Remove cruise control actuator. Remove engine ground cable. Remove power steering pump belt and mounting bolts. Remove power steering pump, with hoses attached, and wire aside.

4. Loosen idler pulley bolt and adjusting bolt. Remove air conditioning compressor belt. On manual transmission models, remove clutch slave cylinder, leaving hydraulic line attached. On all models, remove transmission ground cable.

5. Remove radiator cap. Raise and support vehicle. Remove front wheels and splash shield. Drain engine and transmission oil. Reinstall engine and transmission drain plugs using NEW washers. Drain cooling system. Remove upper and lower radiator hoses and heater hoses. On automatic transmission models, remove ATF cooler hoses.

6. On all Acura Integra models, remove radiator assembly. Remove A/C compressor, with hoses attached, and wire aside. Disconnect oxygen sensor and remove exhaust pipe “A”. On manual transmission models, remove shift rod and extension rod. On automatic transmission models, remove shift cable. On all models, remove damper fork and disconnect suspension lower arm ball joints. Remove axle shafts.

7. Attach chain hoist to the B18C engine. Raise hoist to take slack from chain. Remove left and right front engine mounts and brackets. Remove rear and side engine mount brackets. Remove transmission mount. Ensure all hoses and electrical connectors have been removed. Slowly raise engine, once again ensure all hoses and electrical connectors have been disconnected. Raise engine and remove from vehicle.

B18C and B18C5 ENGINE INSTALLATION

1. To install, reverse removal procedure. To prevent excessive engine vibration and premature engine mount wear, tighten engine/transaxle mounts in sequence specified in next step. See figure.

2. Install transmission mount and tighten bolts/nuts to transmission, but leave mount-to-frame bolt loose. Install engine side mount and tighten bolts/nuts to B18C, but leave mount-to-frame bolt loose. Tighten mount to frame bolts on transmission mount and side engine mount. Install rear mount bracket. Tighten rear mount bracket bolts to engine first, then to frame. Install right front mounting bracket and tighten bolts to engine first, then to frame. Install left front mounting bracket and tighten bolts to engine first, then to frame.

3. When installing axle shafts, use NEW spring clips. Insert axle shafts until spring clips click into groove of differential side gear. Ensure harness connectors and hoses are connected properly. Ensure control cables are not bent or pinched and are adjusted properly. Tighten remaining bolts/nuts to specification. See Torque specs. On manual transmission models, adjust clutch pedal free play and verify transaxle shifts smoothly.

4. On all Acura Integra models, adjust drive belt tension. Fill or top off all fluids. Fill and bleed air from cooling system. Start engine and check for leaks.

For Integra Torque Specs Click Here

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Clutch replacement applies to all Acura Integra 1994-2001 models.

Remove brake fluid from master cylinder. Disconnect fluid lines and reservoir hose from master cylinder. Plug end of line from fluid reservoir. Remove cotter pin from master cylinder push rod at clutch pedal. Remove mounting nuts and master cylinder. To install, reverse removal procedure . Bleed hydraulic system.

Removal

1. Remove battery and battery tray. Remove air cleaner housing and air inlet duct as an assembly. Disconnect ground cable from transaxle. Remove lower radiator hose clamp from transaxle hanger.
2. Unplug connector from back-up light switch. Drain transaxle fluid. Remove vehicle speed sensor connector. Disconnect cables and wiring harness clamp from starter. Remove hydraulic hose bracket and clutch slave cylinder.
3. Remove 3 upper transaxle mounting bolts and lower starter bolts. Remove engine splash shield. Disconnect oxygen sensor connector. Remove exhaust pipe from catalytic converter and manifold. On models with VTEC engines, remove catalytic converter. On all models, separate lower right ball joint from control arm. Remove right damper fork. Remove axle shafts and intermediate shafts.
4. Remove heat shield. Disconnect shift rod and torque rod from transaxle. Remove front and rear engine braces. Remove clutch housing cover. Remove right front transaxle mount/bracket. Place floor jack under transaxle. Support engine with jack stands. Remove transaxle mount.
5. Remove rear transaxle mount bracket and mount bolts from side of transaxle. Check for wires, hoses, or any other components that may still be attached. Move transaxle away from engine until shaft clears clutch. Lower transaxle to remove from vehicle.
6. Before removing clutch from flywheel, measure diaphragm spring fingers wear with feeler gauge, Handle (07936-3710100), Clutch Alignment Shaft (07NAF-PR30100), and Clutch Alignment Disc (07JAFPM7011A). Wear limit is 0.03″ (0.8 mm). Install flywheel holder. If reusing clutch, mark pressure plate and flywheel for installation reference. Unscrew pressure plate bolts 2 turns at a time in a crisscross pattern, to prevent warpage.

Inspection

1. Inspect pressure plate surface for wear, cracks, burning or warpage in excess of .006″ (.15 mm). Measure warpage with straightedge and feeler gauge at several points. Inspect clutch pilot and release bearing for smooth operation and looseness. Replace bearings if necessary.
2. Inspect clutch disc lining for excessive wear and burned or oil-soaked condition. Measure disc thickness and rivet depth. Inspect clutch disc for loose torsion dampers. Measure clutch disc and flywheel runout. Replace clutch disc if not within specifications.
3. Inspect flywheel ring gear teeth for wear and damage. Inspect flywheel for wear, cracks and burned condition. When measuring flywheel runout, push against flywheel to take up crankshaft thrust washer clearance.

Use new set rings (spring clips) on both axle shafts. Slide axles in until set rings engage differential.

Installation

1. Tighten flywheel bolts to specification in a crisscross pattern. Align dowel holes in pressure plate with flywheel dowels. Using clutch alignment tool and ring gear holder, install disc and pressure plate. Tighten pressure plate bolts to specification in a crisscross pattern.
2. Ensure both dowel pins are installed in clutch housing. Clean release bearing sliding surface. Apply molybdenum disulfide grease to surface. Apply a light coat of grease to input shaft splines. Keep clutch disc and pressure plate surfaces free of grease and dirt.
3. To complete installation, reverse removal procedure. Tighten transmission mount bolts in sequence as illustrated. Refill all fluids to proper level. Adjust clutch pedal height and free play.

Clutch Specifications In. (mm)

• Diaphragm Spring Finger Wear
  • Standard: (New) 0.02 (0.5)
  • Service Limit: 0.03 (0.8)
• Disc Thickness
  • Standard (New): 0.33-0.35 (8.4-9.0)
  • Service Limit: 0.24 (6.1)
• Disc Runout
  • Standard (New): 0.002 (0.05)
  • Service Limit: 0.006 (0.15)
• Flywheel Runout
  • Standard (New): 0.002 (0.05)
  • Service Limit: 0.006 (0.15)
• Pressure Plate Runout
  • Standard (New): 0.002 (0.05)
  • Service Limit: 0.006 (0.15)
• Rivet Depth
  • Standard (New): 0.05-0.07 (1.3-1.8)
  • Service Limit: 0.01 (0.3)

Torque Specifications (N.m)

• Ball Joint Castle Nut: 36-44 (49-59)
• Clutch Housing Cover Bolts
  • 6 mm: (1)
  • 8 mm: 17 (23)
  • 12 mm: 42 (57)
• Damper Fork Pinch Bolt: 47 (64)
• Engine Stiffener Bracket Bolts
  • 8 mm: 17 (23)
  • 12 mm: 42 (57)
• Exhaust Pipe-To-Catalyst Nuts
  • Rear: 24 (33)
  • Front: 12 (16)
• Exhaust Pipe-To-Manifold Nuts: 40 (54)
• Flywheel-To-Crankshaft Bolt: 76 (103)
• Intermediate Shaft Support Bolt: 29 (39)
• Master Cylinder Mounting Nuts: 10 (14)
• Pressure Plate-To-Flywheel Bolt: 19 (26)
• Right Front Transaxle Mount
  • Mounting Bolt: 32 (44)
  • Through-Bolt: 61 (83)
• Rear Transaxle Mount
  • Mounting Bolt: 47 (64)
  • Trough-Bolt: 55 (74)
• Release Fork Bolt: 21 (29)
• Slave Cylinder-To-Housing Bolt: 16 (22)
• Starter Bolt 32: (44)
• Transaxle-To-Engine Mounting Bolts
  • 12 mm: 47 (64)
  • 14 mm: 87 (118)
• Transaxle Torque Rod Bolt: 16 (22)

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DOHC camshaft specs applies to B18C and B18C5 engines found in Acura Integra 1994-2001 GSR and Type R models.

In. (mm)

• End Play
  • Standard: 0.002-0.006 (0.05-0.15)
  • Service Limit: 0.02 (0.50)
• Journal Runout
  • Service Limit: 0.001 (0.03)
• Oil Clearance
  • Standard: 0.002-0.0035 (0.050-0.089)
  • Service Limit: 0.006 (0.15)
• Cam Lobe Height (B18C1 Engine)
  • Intake
    • Primary: 1.3154 (33.411)
    • Mid: 1.4322 (36.377)
    • Secondary: 1.3601 (34.546)
  • Exhaust
    • Primary: 1.3036 (33.111)
    • Mid: 1.4063 (35.720)
    • Secondary: 1.3536 (34.381)
• Cam Lobe Height (B18C5 Engine)
  • Intake
    • Primary: 1.3027 (33.088)
    • Mid: 1.4138 (35.910)
    • Secondary: 1.3674 (34.732)
  • Exhaust
    • Primary: 1.2907 (32.783)
    • Mid: 1.4304 (36.332)
    • Secondary: 1.3658 (34.691)

Got questions and comments on B18C and B18C5 DOHC camshaft specs for Acura Integra 1994-2001? Leave them below!

B18C oil pump applies to Acura Integra 1994-2001 GSR models.

A rotor-type oil pump draws oil from oil pan and delivers it under pressure to main and connecting rod bearings. Oil jets at bottom of block spray oil upward to lubricate piston and cylinder wall. An oil passage carries oil to camshaft and rocker arms. Oil spray lubricates valve stems.

Crankcase Capacity
Crankcase capacity is 4.2 qts. (4.0L) including oil filter. Oil capacity is 5.1 qts. (4.8L) after engine overhaul.

Oil Pressure
Oil pressure at idle should be 10 psi (0.7 kg/cm2 ) minimum. Oil pressure at 3000 RPM should be 50 psi (3.5 kg/cm2 ) minimum.

Oil Pump Removal and Disassembly
Remove oil pan. Remove oil screen and oil pump assembly. Remove screws from oil pump housing. Separate housing and cover.

Inspection
Measure radial clearance between inner and outer rotors. Measure axial clearance between housing and outer rotor. Inspect both rotors and pump housing for scoring or other damage. Replace components if clearance measurements are not within specification.

B18C Oil Pump Specifications – In. (mm)

• Inner Rotor-To-Outer Rotor
  • Radial Clearance
    • Standard (New): 0.002-0.006 (0.05-0.15)
    • Service Limit: 0.008 (0.20)
• Housing-To-Outer Rotor
  • Axial Clearance
    • Standard (New): 0.001-0.003 (0.02-0.08)
    • Service Limit: 0.006 (0.15)
  • Radial Clearance
    • Standard (New): 0.004-0.007 (0.10-0.18)
    • Service Limit: 0.008 (0.20)

Reassembly and Installation

1. Reassemble oil pump, using Loctite on pump housing screws. Ensure oil pump turns freely. Install dowel pins and NEW “O” ring into cylinder block. Clean oil pump mating surfaces. Apply Liquid Sealant (08718-0001) to cylinder block mating surface of oil pump.
2. Apply sealant to threads of inner bolt holes. Install oil screen and oil pump before sealant dries. Wait at least 30 minutes before filling crankcase with oil. To complete installation, reverse removal procedure.

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Valvetrain removal applies to B18C engines found in Acura Integra 1994-2001.

Removal
Place a rubber band around each set of rocker arms to keep them together. Remove intake and exhaust rocker shaft oil control orifices. Remove VTEC solenoid valve and sealing bolts. Screw a 12-mm bolt into end of rocker shaft. Pull bolt head to remove rocker shaft and rocker arms. Mark parts for installation reference as they are removed.

Shape of intake oil orifices are different than exhaust oil orifices. Ensure re-installation in original locations.

Inspection
1. Push rocker arm pistons manually. If they do not move smoothly, replace rocker arm assembly. Remove lost motion assembly from cylinder head and test by pushing plunger with finger. If lost motion assembly does not move smoothly, replace assembly.

2. Measure diameter of intake and exhaust rocker shafts at first rocker location. Measure ID of rocker arms, and check for out of round condition. Repeat for all rocker arms. If out of round condition is detected, replace rocker arms. Always replace rocker arms as a set of 3.

Installation
Lubricate all components before installation. Install all components into original locations. Back off valve adjuster screws before installation. If holes in cylinder head and rocker shafts are not in line, turn shaft with 12-mm bolt threaded into end. To complete installation, reverse removal procedure.

Engine torque specifications applies to Acura Integra GSR and Type R from 1994-2001. Applies to the following engines: B18c, B18c5.

• AC Compressor Bracket Bolts: 32 (44)
• AC Compressor Mounting Bolts: 17 (23)
• Camshaft Retaining Bolts: Tighten 6-mm bolts to 88 INCH lbs. (10 N.m). Tighten 8-mm bolts to 20 ft. lbs. (27 N.m). Bolts must be tightened in sequence shown. See figure.
• Camshaft Sprocket Bolts: 41 (56)
• Connecting Rod Nuts
  • B18C1 Engine: Tighten connecting rod nuts in 2 stages. First tighten nuts to 15 ft. lbs. (20 N.m), then to 32 ft. lbs. (44 N.m).
  • B18C5 Engine: See Cylinder Block Assembly under Overhaul.
• Crankshaft Pulley Bolt: 133 (180)
• Cylinder Head Bolts: Tighten cylinder head bolts in 2 stages. First tighten bolts to 22 ft. lbs. (30 N.m), and then to 63 ft. lbs. (85 N.m). See figure.
• Distributor Mount Bolts: 17 (23)
• Engine Block-To-Transaxle Housing Bolts: 47 (64)
• Engine Mount Bolts: See figure
• Exhaust Manifold Nuts: 23 (31)
• Exhaust Pipe Flange Nuts: 40 (54)
• Flexplate (A/T) (6): 55 (75) – Tighten in a crisscross pattern.
• Flywheel Bolts (M/T): (6) 76 (103)
• Fuel Filter Banjo Bolt: 24 (33)
• Generator Belt Adjustment Bolt: 18 (24)
• Generator Mount Bolt: 32 (44)
• Intake Manifold Nuts: 17 (23)
• Main Bearing Cap Bolts: Tighten main bearing bolts in 2 stages. First tighten bolts to 22 ft. lbs. (30 N.m), then tighten bearing caps No. 1 and 5 to 54 ft. lbs. (73 N.m) and bearing caps No. 2, 3 and 4 to 47 ft. lbs. (64 N.m).
• Oil Pump Bolts
  • 6-mm Bolts: Tighten to 97 INCH lbs. (11 N.m).
  • 8-mm Bolts: 17 (23)
• Power Steering Mount Bolt: 17 (23)
• Rocker Arm Lock Nuts: 14 (19)
• Rocker Arm Shaft Sealing Bolt: 47 (64)
• Shift Lever Torque Rod Bolt: 16 (22)
• Timing Belt Tension Adjuster Bolt: 40 (54)

INCH Lbs. (N.m) – Torque Specs

• Crankshaft Baffle Plate: 97 inch lbs. (11 N.m)
• Crankshaft Rear Seal Cover Bolts: 97 inch lbs (11 N.m)
• Oil Pan Bolts: 106 inch lbs (12 N.m) – Tighten in a crisscross pattern.
• Oil Pump Screen Nuts: 97 inch lbs (11 N.m)
• Timing Belt Cover Bolts: 88 inch lbs (10 N.m)
• Valve Cover Nuts: 88 inch lbs (10 N.m)
• Water Pump Bolt: 106 inch lbs (12 N.m)

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