Single cam SOHC engine of car Honda Civic 5 and 6

Checking the VTEC system
1. Remove the VTEC solenoid valve assembly from the cylinder head, and check the solenoid filter for clogging If the filter is clogged, replace the engine oil and engine oil filter. 2. If the filter is not clogged,...

Adjusting valve clearance
Note: The valves should be adjusted when the cylinder head temperature is less than 38°C. After adjustment, tighten the crankshaft pulley bolt M kr. =18 Nm (18.5 kgf·m). 1. Remove the cylinder head cover. 2. Remove the...

Crankshaft pulley and pulley mounting bolt
Replacement When removing and installing the pulley, follow the procedure described below. Clean and remove any traces of oil and lubricate the points indicated below. A: Clear x: Remove oil : Lubricate D15Z6, D15Z7,...

Timing Belt — Checking and Adjusting
Attention: Mark the direction of rotation on the belt before removing it. Do not use the top cover and bottom cover to store removed parts. Clean the top cover and bottom cover before installation. Replace the camshaft...

Toothed timing belt — device

Removal the timing belt
Attention: Turn the crankshaft pulley so that the piston of the first cylinder is at TDC before removing the belt. Check the water pump before installing the timing belt. 1. Remove the mudguard. 2. Loosen the mounting...

Installing the timing belt
The timing belt is installed in the reverse order of removal. Below are only the main points for installation. 1. Install the crankshaft timing pulley so that the piston of cylinder No.1 is at top dead center. Align the...

Replacing the crankshaft speed sensor
1. Remove the cylinder head cover. 2. Remove the crankshaft pulley. 3. Remove the top cover and oil dipstick/tube. 4. Remove the lower cover and the tensioner roller bracket. 5. Disconnect the crankshaft speed sensor...

Cylinder head — device
Warning: To avoid damage, wait until the coolant temperature drops below 38°C before removing the cylinder head. When removing the gasket, be careful not to damage the mating surface. Caution: Use new O-rings and...

Cylinder head — removal
Engine removal is not required for this procedure. Warning: To avoid damage to the cylinder head, wait until the coolant temperature drops below 38°C before loosening the bolts. Attention: Label all wiring and hoses...

Rocker arms — removal
1. Loosen the adjusting screws. 2. Unscrew the camshaft holder bolts, then remove the rocker arm shaft assembly. Attention: Unscrew in several passes in the sequence shown in the figure.

Rocker arms and idle assemblies
Examination (engines D15Z6, D15Z7, D16Y5, D16Y6, D16Y8) Caution: When reassembling the primary rocker arm, carefully apply air pressure to the rocker arm lubrication passage. Check the rocker arm piston. Press it with...

Rocker arms and rocker arm axle
Checking the gap Measure both intake and exhaust rocker arm shafts. 1. Measure the diameter of the rocker arm shaft at the location of the valve rocker arm of the first cylinder. 2. Set the device to zero. 3. Measure...

Camshaft — Check
Attention: Do not rotate the camshaft during the check. Remove the rocker arms and rocker arm shafts. 1. Place the camshaft and camshaft holders on the cylinder head, then tighten the bolts to the specification torque....

Valves, valve springs and valve stem seals — removal
Caution: Identify valves and valve springs so that each part can be reinstalled in its original position. 1. Using a socket and plastic hammer, lightly tap the valve spring retainer to help loosen the crackers. 2....

Valve guide bushings
Valve movement Measure the valve guide-to-stem clearance with a dial indicator while rocking the stem in the direction of normal axial thrust (oscillation method). Clearance between valve stem and valve guide of inlet...

Valve seats — repair
1. Restore the valve seats in the cylinder head using a valve seat cutter. Caution: If the guides are worn, replace them before replacing the valve seats. 2. Carefully cut the seat at 45°, removing enough material to...

Valve seats — installation
1. Insert the valves into the valve guides, coat the valve stems with engine oil before inserting. Caution: Check that the valves move up and down evenly. 2. Install the thrust washers on the cylinder head. 3. Install...

Camshaft Pulley, Camshaft, Rocker Arms and Seal — Installation
Warning: Make sure all rocker arms are aligned with the valves when tightening the bolts. The valve locknuts must be loosened and the adjusting screws removed before installation. To prevent the rocker arms from...

Cylinder head — installation
Install the cylinder head in the reverse order of removal: Attention: Always use a new cylinder head gasket. The cylinder head and cylinder block surface MUST be CLEAN. The "UP" mark on the camshaft pulley should be at...

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Civic 8 (2005-2011)

Civic 7 (2000-2005)