Honda Civic Service Manual: Valve Stem-to-Guide Clearance Inspection (R18Z1)

Honda Civic Service Manual / Chassis / Wheels/Tires / Valve Stem-to-Guide Clearance Inspection (R18Z1)

1.	Vehicle Lift

Raise the vehicle on a lift, and make sure it is securely supported.

2.	Tire and Wheel-Removal, Front Right

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Remove the right front wheel.

3.	Fuel Filler Cap

Remove the fuel fill cap to relieve the pressure in the fuel tank.

4.	HDS DLC - Connection

NOTE: For specific operations, refer to the user's manual that came with the Honda Diagnostic System (HDS). Make sure the HDS is loaded with the latest software.

Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.

Turn the ignition switch to ON (II).

Make sure the HDS communicates with the vehicle. If it does not communicate, go to the DLC circuit troubleshooting.

5.	Fuel Pump Off

Turn the ignition switch to ON (II).

From the INSPECTION MENU of the HDS, select Fuel Pump OFF, then start the engine, and let it idle until it stalls.

NOTE:

Do not allow the engine to idle above 1,000 rpm or the ECM/PCM will continue to operate the fuel pump.

Pending or Confirmed DTC may be set during this procedure. Check for DTCs, and clear them as needed.

Turn the ignition switch to LOCK (0).

6.	Battery Terminal - Disconnection

Make sure the ignition switch is in LOCK (0), or the vehicle ignition in the OFF mode.

Disconnect and isolate the negative cable with the battery sensor (A) from the battery.

NOTE:

Always disconnect the negative side first.

To protect the battery sensor connector (B) from damage, do not hold it when removing the negative terminal.

Do not disconnect the battery sensor from the negative terminal (C).

Disconnect the positive cable (D) from the battery.

Battery

Remove the battery setting plate (A) and the battery (B).

8.	Fuel Pressure - Relieving

Remove the quick-connect fitting cover (A).

Check the fuel quick-connect fitting for dirt, and clean it if needed.

Place a rag or shop towel over the quick-connect fitting (A).

Disconnect the quick-connect fitting: Hold the connector (A) with one hand, and squeeze the retainer tabs (B) with the other hand to release them from the locking tabs (C). Pull the connector off.

NOTE:

Be careful not to damage the line (D) or other parts.

Do not use tools.

If the connector does not move, keep the retainer tabs pressed down, and alternately pull and push the connector until it comes off easily.

Do not remove the retainer from the line; once removed, the retainer must be replaced with a new one.

9.	Engine Cover

Remove the engine cover.

10.	Radiator Cap

Wait until the engine is cool, then carefully remove the radiator cap.

11.	Radiator Coolant - Replacement

Loosen the drain plug (A), and drain the coolant.

12.	Intake Air Pipe

Remove the intake air pipe.

13.	Air Cleaner

Disconnect the intake air duct (A).

Remove the air cleaner (B).

Remove the harness clamp (C).

14.	Wiper Arm Assembly

NOTE: Set the wiper arms to the auto-stop position before removal.

Remove the cowl top wiper covers (A).

Remove the wiper arms (B).

15.	Both Side Cowl Covers

Remove the side cowl cover (A).

The left side is shown; repeat on the right side.

16.	Center Cowl Cover

Remove the center cowl cover (A).

Disconnect the windshield washer tube (B).

If necessary, remove the hood rear seal (C).

17.	Under Cowl Panel

Remove the under cowl panel (A).

18.	Intake Air Duct

Remove the intake air duct.

19.	Throttle Body - Removal

Remove the throttle body without disconnecting the hoses.

20.	Intake Manifold Assembly

Disconnect the EVAP canister hose (A), the brake booster vacuum hose (B), and the PCV hose (C).

Remove the heater hose clamp bracket.

Remove the intake manifold bracket.

Disconnect the connectors (A).

Remove the harness clamps.

Remove the intake manifold assembly.

21.	Cylinder Head Peripheral Assembly

Disconnect the connectors (A).

Remove the harness holders (B).

Remove the harness clamp (A).

Disconnect the PCV hose from the clamp (B).

Remove the harness holder (A) from the cylinder head.

Disconnect the upper radiator hose (A), the heater hose (B), and the water bypass hose (C).

22.	Ignition Coil

Remove the ignition coils.

23.	A/F Sensor (Sensor 1)

Disconnect the connector.

Remove the A/F sensor (A).

24.	Exhaust Chamber Cover

Remove the exhaust chamber cover (A).

25.

EGR Pipe

Remove the EGR pipe (A).

26.	Splash Shield

Remove the splash shield (A).

27.	Engine Undercover

Remove the engine undercover (A).

28.	Secondary HO2S

Disconnect the connector.

Remove secondary HO2S (A).

29.	Exhaust Pipe A (Except CVT)

Remove exhaust pipe A.

30.	Exhaust Pipe A (CVT)

Disconnect the connector (A).

Remove exhaust pipe A.

31.	Catalytic Converter

Remove the catalytic converter (A).

Remove the catalytic converter cover (B).

32.	Thermostat Housing Peripheral Assembly

Except CVT

CVT

Disconnect the connectors (A).

Remove the harness clamps (B).

Disconnect the connector (A).

Remove the harness clamp (B).

Except M/T

M/T

Remove the harness bracket (A).

Disconnect the lower radiator hose (B), the water bypass hose (C), and the heater hose (D).

33.	Thermostat Housing

Remove the thermostat housing.

34.	Water Pump Pulley Mounting Bolt - Loosen

Loosen the water pump pulley mounting bolts.

35.	Drive Belt

Move the auto-tensioner (A) counterclockwise to relieve tension from the drive belt (B).

Remove the drive belt.

36.	Alternator

Disconnect the connector and the cable.

Remove the harness connector (A) and the harness clamps (B).

Remove the alternator.

37.	Water Pump Pulley

Remove the water pump pulley.

38.	Auto Tensioner Assembly

Remove the drive belt auto-tensioner (A).

Check for oil leaks from the drive belt auto-tensioner damper (B) and check for damage to the damper rubber.

39.	Cylinder Head Cover and/or Packing

Remove the dipstick (A).

Disconnect the breather hose (B).

Remove the cylinder head cover.

40.	Check The No.1 Piston at Top Dead Center (With Cam Chain Case/Oil Pump)

Set the No. 1 piston at top dead center (TDC). The ‘‘UP’’ mark (A) on the camshaft sprocket should be at the top, and the TDC grooves (B) on the camshaft sprocket should line up with the top edge of the head.

41.	Crankshaft Pulley

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Hold the pulley with the holder handle (A) and the crankshaft pulley holder (B).

Remove the bolt with a socket, 19 mm (C) and a breaker bar.

Remove the crankshaft pulley.

42.	Engine Jack Support (State Of A Low Vehicle)

Lift and support the engine with a jack and a wood block under the oil pan.

43.	Mounting Bracket, Engine Side

Remove the ground cable (A), the side engine mount bracket (B), and the side engine mount (C).

44.	Engine Oil Pump Assembly

Disconnect the PCV hose.

Remove the oil pump.

45.	Cam Chain Auto-Tensioner

Measure the tensioner rod length between the tensioner body and bottom of the flat surface section on the tensioner rod. If the length is more than the service limit, replace the cam chain.

Tensioner Rod Length
Service Limit:	14.5 mm (0.571 in)

Loosely install the crankshaft pulley.

Turn the crankshaft counterclockwise to compress the auto-tensioner.

Rotate the crankshaft counterclockwise to align the holes on the lock (A) and the auto-tensioner (B).

Insert a 1.0 mm (1/32 in) diameter pin (C) into the holes.

	6.	Turn the crankshaft clockwise to secure the pin.
		NOTE: If the holes in the lock and the auto-tensioner do not align, continue to rotating the crankshaft counterclockwise until the holes align, then install the pin.

Remove the cam chain auto-tensioner.

Remove the crankshaft pulley.

46.

Cam Chain

Remove the cam chain guide (A) and the cam chain tensioner arm (B).

Remove the cam chain.

47.	Cylinder Head Assembly

Remove the cylinder head bolts. To prevent warpage, loosen the bolts in sequence, 1/3 turn at a time, repeat the sequence until all bolts are loosened.

Remove the cylinder head.

48.	Rocker Arm Assembly

Loosen the locknuts and the adjusting screws (A).

Remove the lost motion holder bolts. To prevent damaging the lost motion holder and the rocker shaft.

loosen the bolts, in sequence, two turns at a time.

Remove the lost motion holder (A) and the lost motion assemblies (B).

Remove the rocker arm assembly (C).

Remove the oil control orifice (D).

49.	Camshaft Sprocket

Hold the camshaft with a 27 mm open-end wrench.

loosen the camshaft sprocket mounting bolt.

Remove the camshaft sprocket.

50.

Camshaft

Remove the camshaft thrust cover (A).

Pull out the camshaft (B).

51.	Valve Spring

Using an appropriate-sized socket (A) and a plastic mallet (B), lightly tap the spring retainer to loosen the valve cotters.

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Install the valve spring compressor attachment and the valve spring compressor.

Compress the valve spring and remove the valve cotters.

Remove the valve spring compressor and the valve spring compressor attachment.

Remove the spring retainer, the valve spring, and the valve.

52.	Valve Seal

Install the valve guide seal remover (A).

Remove the valve seal.

1.	Valve Inspection

Measure the valve in these areas.

Intake Valve Dimensions
A Standard (New):	31.85-32.15 mm (1.2539-1.2657 in)
B Standard (New):	116.40-117.00 mm (4.5827-4.6063 in)
C Standard (New):	5.48-5.49 mm (0.2157-0.2161 in)
C Service Limit:	5.45 mm (0.2146 in)

Exhaust Valve Dimensions
A Standard (New):	25.85-26.15 mm (1.0177-1.0295 in)
B Standard (New):	115.65-116.25 mm (4.5531-4.5768 in)
C Standard (New):	5.45-5.46 mm (0.2146-0.2150 in)
C Service Limit:	5.42 mm (0.2134 in)

2.	Valve Stem To Guide Clearance Inspection

Subtract the O.D. of the valve stem, measured with a micrometer, from the I.D. of the valve guide measured with an inside micrometer or a ball gauge. Take the measurements in three places along the valve stem and three places inside the valve guide. The difference between the largest guide measurement and the smallest stem measurement should not exceed the service limit.

Intake Valve Stem-to-Guide Clearance
Standard (New):	0.02-0.05 mm (0.0008-0.0020 in)
Service Limit:	0.08 mm (0.0031 in)
Exhaust Valve Stem-to-Guide Clearance
Standard (New):	0.05-0.08 mm (0.0020-0.0031 in)
Service Limit:	0.11 mm (0.0043 in)

1.	Valve Seal

	1.	Install the new valve seals (A) using the 5.5 mm side of the stem seal driver (B).
		NOTE: The exhaust valve seal (C) has a black spring (D), and the intake valve seal (E) has a white spring (F), they are not interchangeable.

2.	Valve Spring

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Install the valve spring and the spring retainer. Place the end of the valve spring with the closely wound coils toward the cylinder head.

Install the valve spring compressor attachment and the valve spring compressor.

Compress the spring and install the valve cotters.

Remove the valve spring compressor and the valve spring compressor attachment.

	5.	Lightly tap the end of each valve stem two or three times with a plastic mallet (A) to ensure proper seating of the valve and the valve cotters. Tap the valve stem only along its axis so you do not bend the stem.
		NOTE: Be sure to raise the head off the work bench so the valve is not possibly damaged.

Camshaft

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Install the camshaft (A).

Install the camshaft thrust cover (B) with a new O-ring (C).

4.	Camshaft Sprocket

Install the camshaft sprocket.

Apply new engine oil to the threads of the camshaft sprocket mounting bolt.

Install the camshaft sprocket mounting bolt.

Hold the camshaft with a 27 mm open-end wrench.

Tighten the camshaft sprocket mounting bolt.

Specified Torque:

10 x 1.25 mm 57 N·m (5.8 kgf·m, 42 lbf·ft)

5.	Rocker Arm Assembly

If the rocker arm assembly is disassembled, reassemble the rocker arm assembly.

Install the oil control orifice (A) with a new O-ring (B).

Install the rocker arm assembly (C).

	4.	Install the lost motion assembles (D) and the lost motion holder (E).
		NOTE: Apply new engine oil to the lost motion assembly.

Tighten the two lost motion holder bolts (A).

Tighten each bolts two turns at a time in sequence.

Specified Torque:

6 x 1.0 mm 15 N·m (1.5 kgf·m, 11 lbf·ft)

6.	Cylinder Head Assembly

Clean the cylinder head and the engine block surface.

Install a new coolant separator (A) in the engine block whenever the engine block is replaced.

Install the new cylinder head gasket (B) and the dowel pins (C) on the engine block. Always use a new cylinder head gasket.

Install the cylinder head on the engine block.

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Measure the diameter of each cylinder head bolt at point A and point B.

If either diameter is less than 10.6 mm (0.417 in), replace the cylinder head bolt.

Apply new engine oil to the threads and under the bolt heads of all cylinder head bolts.

Torque the cylinder head bolts in sequence to 40 N·m (4.1 kgf·m, 30 lbf·ft). Use a beam-type torque wrench. When using a preset click-type torque wrench, be sure to tighten slowly and do not overtighten. If a bolt makes any noise while you are torquing it, loosen the bolt and retighten it from the first step.

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	9.	After torquing, tighten all cylinder head bolts in two steps (90 ° per step using the sequence shown in step 8). If you are using a new cylinder head bolt, tighten the bolt an extra 60 °.
		NOTE: Remove the cylinder head bolt if you tightened it beyond the specified angle, and go back to step 5 of the procedure. Do not loosen it back to the specified angle.

Cam Chain

Install the cam chain on the crankshaft sprocket with the colored piece (A) aligned with the mark (B) on the crankshaft sprocket.

Install the cam chain on the camshaft sprocket with the colored link plate (A) aligned with the mark (B) on the camshaft sprocket.

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Install the cam chain guide (A) and the cam chain tensioner arm (B).

8.	Cam Chain Auto-Tensioner

	1.	Compress the cam chain auto-tensioner when replacing the cam chain. Remove the pin (A) from the auto-tensioner that was installed during removal. Turn the plate (B) counterclockwise, to release the lock, then press the rod (C), and set the first cam (D) to the first edge of the rack (E). Insert the 1.0 mm (1/32 in) diameter pin back into the holes (F).
		NOTE: If the chain tensioner is not set up as described, the tensioner will be damaged.

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Install the cam chain auto-tensioner.

Remove the pin from the cam chain auto-tensioner.

9.	Engine Oil Pump Assembly

Check the oil pump oil seal for damage. If the oil seal is damaged, replace the oil seal.

Remove all of the old liquid gasket from the oil pump mating surfaces, the bolts, and the bolt holes.

Clean and dry the oil pump mating surfaces.

Apply liquid gasket (P/N 08718-0004 or 08718-0009) to the engine block mating surface of the oil pump, and to the inside edge of the threaded bolt holes. Install the component within 5 minutes of applying the liquid gasket.

NOTE:

Apply a 2.5 mm (0.098 in) diameter bead of liquid gasket along the broken line (A), (B), and (C).

If too much time has passed after applying the liquid gasket, remove the old liquid gasket and residue, then reapply new liquid gasket.

Apply liquid gasket (P/N 08718-0004 or 08718-0009) to the oil pan mating surface of the oil pump, and to the inside edge of the threaded bolt holes. Install the component within 5 minutes of applying the liquid gasket.

Apply a 2.5 mm (0.098 in) diameter bead of liquid gasket along the broken line (A).

If too much time has passed after applying the liquid gasket, remove the old liquid gasket and residue, then reapply new liquid gasket.

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Set the edge of the oil pump (A) on the edge of the oil pan (B) with new O-rings (C).

Install the oil pump on the engine block (D).

Loosely install the dowel bolts (E), then tighten the 8mmbolts (F), the 6 mm bolts (G) and the dowel bolts.

Wipe off the excess liquid gasket on the oil pan and oil pump mating surface.

NOTE:

When installing the oil pump, do not slide the bottom surface onto the oil pan mounting surface.

Wait at least 30 minutes before filling the engine with oil.

Do not run the engine within 3 hours after installing the oil pump.

10.	Mounting Bracket, Engine Side

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Install the new side engine mount mounting bolts (A) and the side engine mount bracket (B) using a nut and a new bolt, then loosely install the new side engine mount bracket mounting bolts and nut (C).

Install the ground cable (D).

11.	Engine Jack Support (State Of A Low Vehicle)

Remove the jack and the wood block.

12.	Transmission Mount Bracket Mounting Bolt - Loosen

M/T

A/T

Loosen the transmission mount bracket mounting bolt and nuts (A).

13.	Lower Torque Rod - Loosen

Loosen the lower torque rod mounting bolt (A).

14.	Side Engine Mount - Tighten

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Tighten the side engine mount bracket mounting bolt and nut.

15.	Transmission Mount Bracket Mounting Bolt - Tighten

Tighten the transmission mount bracket mounting bolt and nuts.

M/T

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A/T

16.	Lower Torque Rod Mounting Bolt - Tighten

Tighten the lower torque rod mounting bolt.

17.	Crankshaft Pulley

Clean the crankshaft pulley (A), the crankshaft (B), the bolt (C), and the washer (D).

Lubricate with new engine oil as shown.

Install the crankshaft pulley (A) onto the crankshaft (B) by aligning the flat sides (C) of the pulley with the flat sides (D) of the inner oil pump gear.

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When a new crankshaft or a new pulley bolt is installed

Hold the pulley with the holder handle (A) and crankshaft pulley holder (B), torque the bolt to 180 N·m (18.4 kgf·m, 133 lbf·ft) with a torque wrench and a socket (C), then remove the bolt.

	5.	Torque the bolt to 50 N·m (5.1 kgf·m, 37 lbf·ft) with a torque wrench and a socket.
		NOTE: Tighten the crankshaft pulley bolt. Do not use an impact wrench.

Tighten the bolt an additional 82 °.

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When the crankshaft or the pulley bolt is reused

	7.	Hold the pulley with the holder handle (A) and crankshaft pulley holder (B), then torque the bolt to 70 N·m (7.1 kgf·m, 52 lbf·ft) with a torque wrench and a socket (C).
		NOTE: Tighten the crankshaft pulley bolt. Do not use an impact wrench.

Tighten the bolt an additional 90 °.

18.	Valve Clearance Adjustment

Select the correct feeler gauge for the valve clearance you are going to check.

Valve Clearance
Intake:	0.18-0.22 mm (0.008-0.008 in)
Exhaust:	0.23-0.27 mm (0.010-0.010 in)

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Insert the feeler gauge (A) between the adjusting screw (B) and the end of the valve stem on the No. 1 cylinder, and slide it back and forth; you should feel a slight amount of drag.

If you feel too much or too little drag, loosen the locknut, and turn the adjusting screw (A) until the drag on the feeler gauge is correct.

Tighten the locknut to the specified torque, and recheck the clearance. Repeat the adjustment if necessary.

Specified Torque

7 x 0.75 mm

14 N·m (1.4 kgf·m, 10 lbf·ft)

Apply new engine oil to the nut threads.

Rotate the crankshaft clockwise. Align the No. 3 piston TDC groove (A) on the camshaft sprocket with the top edge of the head.

Check and, if necessary, adjust the valve clearance on the No. 3 cylinder.

Rotate the crankshaft clockwise. Align the No. 4 piston TDC groove (A) on the camshaft sprocket with the top edge of the head.

Check and, if necessary, adjust the valve clearance on the No. 4 cylinder.

10.

Rotate the crankshaft clockwise. Align the No. 2 piston TDC groove (A) on the camshaft sprocket with the top edge of the head.

11.

Check and, if necessary, adjust the valve clearance on the No. 2 cylinder.

19.	Cylinder Head Cover and/or Packing

	1.	Thoroughly clean the head cover gasket and the groove.
		NOTE: Check and, if necessary, replace the head cover gasket.

Install the head cover gasket (A) in the groove of the cylinder head cover (B).

Make sure the head cover gasket is seated securely.

Clean the head cover contacting surfaces with a shop towel.

Remove the old liquid gasket from the top edge matting surfaces of the oil pump (A) and cylinder head (B).

Apply liquid gasket (P/N 08718-0004 or 08718-0009) to the chain case contact areas. Install the component within 5 minutes of applying the liquid gasket.

NOTE:

Apply a 5 mm (0.20 in) diameter bead of liquid gasket to the mating surfaces (C).

If too much time has passed after applying the liquid gasket, remove the old liquid gasket and residue, then reapply new liquid gasket.

Install the cylinder head cover.

Tighten the bolts in two steps. In the final step, torque all bolts in sequence to 10 N·m (1.0 kgf·m, 7 lbf·ft).

NOTE:

Wait at least 30 minutes before filling the engine with oil.

Do not run the engine for at least 3 hours after installing the head cover.

Connect the breather hose (A).

10.

Install the dipstick (B).

20.	Auto Tensioner Assembly

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Install the drive belt auto-tensioner.

21.	Water Pump Pulley

Install the water pump pulley.

22.	Alternator

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Install the alternator.

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Connect the connector and the cable. Make sure the crimped side of the ring terminal faces away from the alternator when you connect it.

Install the harness connector (A) and the harness clamps (B).

23.	Drive Belt

Move the auto-tensioner (A) counterclockwise.

Install the drive belt (B).

24.	Water Pump Pulley Mounting Bolt - Tighten

Tighten the water pump pulley mounting bolts.

25.	Thermostat Housing

Install the thermostat housing (A), using a new gasket (B) and new O-ring (C).

26.	Thermostat Housing Peripheral Assembly

Except M/T

M/T

Connect the lower radiator hose (A), the water bypass hose (B), and the heater hose (C).

Install the harness bracket (D).

Install the harness clamp (A).

Connect the connector (B).

Except CVT

CVT

Install the harness clamps (A).

Connect the connectors (B).

27.	Catalytic Converter

Install the catalytic converter cover (A).

Install the catalytic converter (B) with new gaskets (C).

28.	Exhaust Pipe A (CVT)

Install exhaust pipe A. Use new gaskets (B) and new self-locking nuts (C).

Connect the connector (A).

29.	Exhaust Pipe A (Except CVT)

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Install exhaust pipe A. Use new gaskets (B) and new self-locking nuts (C).

30.	Secondary HO2S

Install secondary HO2S (A).

Connect the connector.

31.	Engine Undercover

Install the engine undercover (A).

32.	Splash Shield

Install the splash shield (A).

33.

EGR Pipe

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Install the EGR pipe (A) with new gaskets (B).

34.	Exhaust Chamber Cover

Install the exhaust chamber cover (A).

35.	A/F Sensor (Sensor 1)

Install the A/F sensor (A).

Connect the connector.

36.	Ignition Coil

Install the ignition coils.

37.	Cylinder Head Peripheral Assembly

Connect the upper radiator hose (A), the heater hose (B), and the water bypass hose (C).

Install the harness holder (A) to the cylinder head.

Install the harness clamps (A).

Connect the PCV hose to the clamp (B).

Install the harness holders (A).

Connect the connectors (B).

38.	Intake Manifold Assembly

Install the intake manifold assembly (A) with new gaskets (B).

Tighten the bolts/nuts in a crisscross pattern in three steps, beginning with the inner bolt.

Install the connectors (A).

Connect the harness clamps.

Install the intake manifold bracket.

Install the heater hose clamp bracket.

Connect the EVAP canister hose (A), the brake booster vacuum hose (B), and the PCV hose (C).

39.	Throttle Body - Installation

Install the throttle body (A) with new O-ring (B).

40.	Intake Air Duct

Install the intake air duct.

41.	Under Cowl Panel

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Install the under cowl panel (A).

42.	Center Cowl Cover

If necessary, install the hood rear seal (A).

Connect the windshield washer tube (B).

Install the center cowl cover (C).

43.	Both Side Cowl Covers

Install the side cowl cover (A).

The left side is shown; repeat on the right side.

44.	Wiper Arm Assembly

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NOTE: Set the wiper arms to the auto-stop position before installation.

Install the wiper arms (A).

Install the cowl top wiper covers (B).

45.	Air Cleaner

Install the harness clamp (A).

Install the air cleaner (B).

Connect the intake air duct (C).

46.	Intake Air Pipe

Install the intake air pipe.

47.	Injector Base Fuel Feed Hose - Reconnection

Connect the fuel feed hose.

48.	Engine Cover

Install the engine cover.

49.

Battery

	1.	Install the battery (A) and the battery setting plate (B).
		NOTE: Do not deform the battery setting plate by over-tightening the nuts.

50.	Battery Terminal - Reconnection

NOTE: If the battery performs abnormally, test the battery.

Clean the battery terminals.

	2.	Connect the positive cable (A) to the battery.
		NOTE: Always connect the positive side first.

	3.	Connect the negative cable and the battery sensor (B) to the battery.
		NOTE: To protect the battery sensor connector (C) from damage, do not hold it when installing the negative terminal.

Apply multipurpose grease to the terminals to prevent corrosion.

51.	HDS DLC - Connection

Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.

Turn the ignition switch to ON (II).

Make sure the HDS communicates with the vehicle. If it does not communicate, go to the DLC circuit troubleshooting.

52.	Fuel Pump On

	1.	From the INSPECTION MENU of the HDS, select Fuel Pump ON.
		NOTE: Pending or Confirmed DTC may be set during this procedure. Check for DTCs, and clear them as needed.

Turn the ignition switch to LOCK (0).

53.	Fuel Filler Cap

Install the fuel fill cap.

54.	Fuel Line Leak Check

Turn the ignition switch to ON (II) (but do not operate the starter motor). The fuel pump runs for about 2 seconds, and fuel pressure rises. Repeat this two or three times, then make sure there are no fuel leaks.

55.	Radiator Coolant - Replacement

Follow the chart and pour coolant into the radiator up to the base of the filler neck.

NOTE:

Use Honda Long Life Antifreeze/Coolant Type 2, and if necessary add Honda Extreme Cold Weather Antifreeze/Coolant Type 2 (concentrate). Using a non-Honda coolant can result in corrosion, causing the cooling system to malfunction or fail.

Honda Long Life Antifreeze/Coolant Type 2 is a mixture of 50 % antifreeze and 50 % water. Honda Extreme Cold Weather Antifreeze/Coolant Type 2 is a 100 % concentration coolant. Do not add water to either coolant.

If the vehicle is regularly driven in very low temperatures (below -22 °F ( -30 °C)), a 60 % concentration of coolant should be used.

Operation	Vehicle Usage (Desired Mixture)	Current Mixture	Coolant Drain	Add Amount of Honda Extreme Cold Weather Antifreeze/Coolant Type 2 (100 % concentrate)	Then add Honda Long Life Antifreeze/Coolant Type 2 (50/50)
Coolant Change	Normal Area (50/50)	50/50 60/40 unknown	Drain radiator, engine block, and reservoir	None	Top off the cooling system
	Very Cold Area (60/40)	50/50 unknown	Drain radiator, engine block, and reservoir	About 1.3 L (44 fl oz)
	Very Cold Area (60/40)	60/40	Drain radiator, engine block, and reservoir	About 1.2 L (41 fl oz)
Engine Overhaul	Normal Area (50/50)	-	-	None
Engine Overhaul	Very Cold Area (60/40)	-	-	About 1.2 L (41 fl oz)
Coolant Winterizing	Very Cold Area (60/40)	50/50	Drain about 2.0 L (68 fl oz) from radiator	About 1.2 L (41 fl oz)
Coolant Winterizing	Very Cold Area (60/40)	unknown*	Drain radiator, engine block, and reservoir	About 1.2 L (41 fl oz)

*: When you want to winterize the coolant with the minimum amount of coolant change but the current coolant concentration in the vehicle is unknown, you must drain all coolant from the cooling system.

Engine Coolant Capacities (Including the coolant reservoir capacity of 0.475 L (0.1255 US gal))

Except K24Z7 engine
	Manufacturer	Capacity
At Coolant Change	DENSO	5.59 L (1.477 US gal)
At Coolant Change	TRAD	5.50 L (1.453 US gal)
After Engine Overhaul (M/T)	DENSO	6.42 L (1.696 US gal)
After Engine Overhaul (M/T)	TRAD	6.33 L (1.672 US gal)
After Engine Overhaul (A/T)	DENSO	6.56 L (1.732 US gal)
After Engine Overhaul (A/T)	TRAD	6.47 L (1.709 US gal)
After Engine Overhaul (CVT)	DENSO	6.52 L (1.722 US gal)
After Engine Overhaul (CVT)	TRAD	6.43 L (1.699 US gal)

Engine Coolant Capacities (Including the coolant reservoir capacity of 0.475 L (0.1255 US gal))

K24Z7 engine
	Capacity
At Coolant Change	5.5 L (1.45 US gal)
After Engine Overhaul	6.7 L (1.78 US gal)

56.	Tire and Wheel-Installation, Front Right

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	1.	Install the right front wheel.
		NOTE: Before installing the wheel, clean the mating surfaces between the brake disc and the inside of the wheel.

57.	Warm Up The Engine

Start the engine. Hold the engine speed at 3,000 rpm without load (A/T in P or N, M/T in neutral) until the radiator fan comes on, then let it idle.

58.	Idle Speed - Inspection

	1.	Check the idle speed without electrical load: headlights, blower fan, radiator fan, and air conditioner off.
		Idle speed should be:
		USA and Canada models: 720±50 rpm (A/T in P or N, M/T in neutral)
		Mexico models: 710±50 rpm (A/T in P or N, M/T in neutral)

	2.	Let the engine idle for 1 minute with high electric load (A/C switch on, temperature set to max cool, blower fan on High, and headlights on high beam).
		Idle speed should be:
		USA and Canada models: 720±50 rpm (A/T in P or N, M/T in neutral)
		Mexico models: 710±50 rpm (A/T in P or N, M/T in neutral)
		NOTE: If the idle speed is not within specification, do the ECM/PCM idle learn procedure. If the idle speed is still not within specification, go to symptom troubleshooting.

59.	CKP Pattern Clear/CKP Pattern Learn

Select CRANK PATTERN in the ADJUSTMENT MENU with the HDS.

Select CRANK PATTERN CLEAR, and clear the CKP pattern.

Select CRANK PATTERN LEARNING with the HDS, and follow the screen prompts.

60.	Ignition Timing - Inspection

Jump the SCS line with the HDS.

Connect the timing light to the No. 1 ignition coil harness.

Aim the light toward the pointer (A) on the cam chain case. Check the ignition timing under a no load condition (headlights, blower fan, rear window defogger, and air conditioner are turned off).

Ignition Timing

8±2 ° BTDC (RED mark (B)) at idle

If the ignition timing differs from the specification, check the camshaft timing. If the camshaft timing is OK, update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the system works properly, and the ECM/PCM was substituted, replace the original ECM/PCM.

Disconnect the HDS and the timing light.

61.	Maintenance Minder Reset

After doing all procedures, select the individual maintenance item you wish to reset with the HDS..

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See also: