In this chapter Cylinder head removal procedure details mentioned for 2RZ-FE & 3RZ-FE Engines Cylinder head details.4wd And Prerunner-Bank 1 & Bank 2 cylinder head replacing diagrams.2TR-FE Engine Cylinder head replacement.
5vz-FE Engine Cylinder head removal Procedure.
The complete cylinder head removal with Diagrams.
4wd And Prerunner-Bank 1
- Before servicing the vehicle, refer to the Precautions Section.
- Properly discharge the fuel system pressure.
- Properly disarm the SRS system.
- Disconnect the negative battery cable. Disconnect the positive battery cable. Remove the battery.
- Remove the power steering gear assembly.
- Remove the front differential carrier assembly.
- Remove the timing chain or belt cover subassembly.
- Remove the chain subassembly.
- Remove the number one cool inlet. Remove the front exhaust pipe assembly. Remove the three bolts and remove the exhaust manifold stay.
- Disconnect the air fuel ratio sensor connector. Remove the six nuts; remove the exhaust manifold and gasket.
- Disconnect the number one fuel pipe subassembly. Disconnect the number two fuel pipe subassembly.
- Disconnect the fuel injector connectors. Remove the ten intake manifold retaining bolts. Remove the intake manifold from the engine.
- Disconnect the engine coolant temperature sensor connector. Disconnect the heater hose. Remove the two bolts and four nuts, and then remove the water bypass joint RR and two gaskets. Remove the O-ring from the water outlet hose.
- While raising the chain tensioner number two, insert a 0.039 inch diameter pin, into the hole. Hold the hexagonal portion of the camshaft in place, using a wrench.
NOTEBe careful not to damage the cylinder head and valve lifter with the wrench. - Remove the two bolts. Remove the camshaft timing gear, camshaft timing gear assembly and timing chain number two.
NOTEDo not disassemble the camshaft timing gear assembly. - Remove the bolt and then remove the chain tensioner number two.
- Remove the camshafts.
- Remove the two bolts. Separate the two ground cables.
- Loosen the cylinder head retaining bolts in several steps and in the proper removal sequence. Remove the bolts.
NOTEBe careful not to drop the washers into the cylinder head. Head warpage and cracking could result in removing the bolts in the wrong order. - Lift the cylinder head from the dowels on the cylinder block and remove it from the engine.
To install:
- Before installing, thoroughly clean the gasket mating surfaces and check for warpage. Remove any old packing material. Be careful not to drop any oil on the contact surfaces of the cylinder head or engine block.
- Apply continuous beads of seal packing, part number 08826-00080 or equivalent, to the cylinder head gasket. Bead width should be 0.098-0.118 inch.
NOTEInstall the cylinder head gasket within three minutes after applying the seal packing. Install the cylinder head bolts within fifteen minutes after applying the seal packing. - Be sure to position the cylinder head gasket on the engine block with the lot number stamp facing upward.
NOTEBe sure that the head gasket is installed in the correct direction. Position the gasket gently in order to avoid damaging the gasket with the bottom part of the cylinder head. - Apply a light coat of clean engine oil to the cylinder head bolts. Tighten the cylinder head bolts, in two successive steps, to specification and in the proper sequence.
NOTEReplace defective bolts, as required. - Continue the installation in the reverse of the removal procedure.
- Be sure to fill the cooling system with the proper grade and type engine coolant.
- Be sure to fill the engine oil with the proper grade and type oil.
NOTEDo not fill the engine with oil for at least four hours after the cylinder head has been installed. - Start the engine and check for leaks. Correct as required.
- Before servicing the vehicle, refer to the Precautions Section.
- Properly discharge the fuel system pressure.
- Properly disarm the SRS system.
- Disconnect the negative battery cable. Disconnect the positive battery cable. Remove the battery.
- Remove the power steering gear assembly.
- Remove the front differential carrier assembly.
- Remove the timing chain or belt cover subassembly.
- Remove the chain subassembly.
- Remove the number one cool inlet. Remove the number two front exhaust pipe assembly. Remove the three bolts and remove the exhaust manifold stay.
- Disconnect the air fuel ratio sensor connector. Remove the six nuts; remove the exhaust manifold and gasket.
- Disconnect the fuel injector connectors. Remove the ten intake manifold retaining bolts. Remove the intake manifold from the engine.
- Disconnect the engine coolant temperature sensor connector. Disconnect the heater hose. Remove the two bolts and four nuts, and then remove the water bypass joint RR and two gaskets. Remove the O-ring from the water outlet hose.
- Remove the two bolts and then remove the chain vibration damper number one.
- While pushing down on chain tensioner number two, insert a 0.039 inch diameter pin, into the hole. Hold the hexagonal portion of the camshaft in place, using a wrench.
NOTEBe careful not to damage the cylinder head and valve lifter with the wrench. - Remove the two bolts. Remove the camshaft timing gear, camshaft timing gear assembly and timing chain number two.
NOTEDo not disassemble the camshaft timing gear assembly. - Remove the bolt and then remove the chain tensioner number three.
- Remove the camshafts.
- Remove the two bolts. Separate the two ground cables.
- Loosen the cylinder head retaining bolts in several steps and in the proper removal sequence. Remove the bolts.
NOTEBe careful not to drop the washers into the cylinder head. Head warpage and cracking could result in removing the bolts in the wrong order. - Lift the cylinder head from the dowels on the cylinder block and remove it from the engine.
To install:
- Before installing, thoroughly clean the gasket mating surfaces and check for warpage. Remove any old packing material. Be careful not to drop any oil on the contact surfaces of the cylinder head or engine block.
- Apply continuous beads of seal packing, part number 08826-00080 or equivalent, to the cylinder head gasket. Bead width should be 0.098-0.118 inch.
NOTEInstall the cylinder head gasket within three minutes after applying the seal packing. Install the cylinder head bolts within fifteen minutes after applying the seal packing. - Be sure to position the cylinder head gasket on the engine block with the lot number stamp facing upward.
NOTEBe sure that the head gasket is installed in the correct direction. Position the gasket gently in order to avoid damaging the gasket with the bottom part of the cylinder head. - Apply a light coat of clean engine oil to the cylinder head bolts. Tighten the cylinder head bolts, in two successive steps, to specification and in the proper sequence.
NOTEReplace defective bolts, as required. - Continue the installation in the reverse of the removal procedure.
- Be sure to fill the cooling system with the proper grade and type engine coolant.
- Be sure to fill the engine oil with the proper grade and type oil.
NOTEDo not fill the engine with oil for at least four hours after the cylinder head has been installed. - Start the engine and check for leaks. Correct as required.
- Before servicing the vehicle, refer to the Precautions Section.
- Release the fuel system pressure.
- Disconnect the negative battery cable.
- Drain the engine coolant.
- Remove or disconnect the following:
Air cleaner cap
Mass Air Flow (MAF) meter and resonator
Accelerator cable from the throttle body, if equipped with a manual transmission
Accelerator and throttle cables from the throttle body, if equipped with an automatic transmission
Cruise control cable from the actuator, if equipped with cruise control
Intake air connector
Air hose for Idle Air Control (IAC)
Vacuum sensing hose
Wire clamp for the engine wiring harness
Oil dipstick guide
Power steering belt
Power steering pulley pump and bracket
Positive Crankcase Ventilation (PCV) hoses
Distributor
Spark plug wires from the spark plugs
Engine wiring harness
Air conditioning compressor, if equipped with air conditioning
Oil pressure sensor
Engine Coolant Temperature (ECT) sensor connector
ECT sender gauge connector
Exhaust Gas Recirculation (EGR) gas temperature sensor connector
Vacuum Switching Valve (VSV) connector
2 vacuum hose from the VSV
Ground strap from the cowl top panel
Engine wiring harness from the air intake chamber
Throttle Position (TP) sensor connector
IAC valve connector
Crankshaft Position (CKP) sensor connector
Knock Sensor (KS) connector
Data Link Connector 1 (DLC1) from the bracket
Engine wiring harness clamp
EGR pipe
Intake chamber stay
Air intake chamber assembly
- Disconnect the following hoses:
Evaporative Emissions (EVAP) hose from the throttle body
Brake booster vacuum hose from the union
Water bypass hose from the water bypass pipe
Water bypass hose from the cylinder head rear cover
- Remove or disconnect the following:
Injector connectors
Fuel inlet pipe
Hoses and the fuel return pipe
Delivery pipe and injectors
Intake manifold
Front exhaust pipe
Exhaust manifold and gasket
Water outlet
Cylinder head rear cover
Spark plugs
Front engine hanger
Engine wiring harness brackets
Cylinder head cover
- Set No. 1 cylinder to Top Dead Center (TDC) of the compression stroke. The groove on the crankshaft pulley should align with the 0 mark on the timing chain cover and the timing marks (1 and 2 dots) of the camshaft gears should form a straight line in respect to the cylinder head surface. If not, turn the crankshaft 1 revolution (360 degrees).
- Remove or disconnect the following:
Chain tensioner and gasket
Camshaft timing gear
Exhaust camshafts
- Remove the intake camshaft, as follows:
- Uniformly, loosen and remove the bearing cap bolts in the reverse order of the tightening in several passes, in sequence.
- Remove the bearing caps and camshaft. Make a note of the bearing cap positions for proper installation.
NOTEIf the camshaft is not being lifted out straight and level, reinstall the No. 3 bearing cap with the 2 bolts. Then, alternately loosen and remove the 2 bearing cap bolts with the camshaft gear pulled up.
- Remove or disconnect the following:
NOTEArrange the valve lifters and shims in correct order.
Valve lifters and shims
Cylinder head, by uniformly loosen and remove the cylinder head bolts in the reverse order of the tightening, in sequence, using several passes
To install:
- Before installing, thoroughly clean the gasket mating surfaces and check for warpage.
- Apply sealant (PN 08826-00080) to the 2 locations. Place a new head gasket on the block and install the cylinder head.
- Install the cylinder head as follows:
- Lightly coat the cylinder head bolts with engine oil.
- Install the bolts and tighten, in several passes, in the sequence. Tighten all bolts to 29 ft. lbs. (39 Nm).
- Mark the front of the bolt with paint and retighten bolts 90 degrees in the proper sequence.
- Retighten an additional 90 degrees. Check that the painted mark is now facing rearward.
- Install or connect the following:
Tighten the 2 front mounting bolts to 15 ft. lbs. (21 Nm).
Valve lifters and shims in their proper locations. Check that the valve lifter rotates smoothly by hand.
Intake and exhaust camshafts
- Set No. 1 cylinder to TDC compression stroke. The groove on the crankshaft pulley should align with the 0 mark on the timing chain cover and the timing marks (1 and 2 dots) of the camshaft gears should form a straight line in respect to the cylinder head surface. If not, turn the crankshaft 1 revolution (360 degrees).
- Install the timing gear, as follows:
- Place the gear over the straight pin of the intake camshaft.
- Hold the intake camshaft with a wrench. Install and tighten the bolt to 54 ft. lbs. (74 Nm).
- Hold the exhaust camshaft and install the bolt and distributor gear. Tighten the bolt to 34 ft. lbs. (46 Nm).
- Install or connect the following:
Chain tensioner, using a new gasket (mark toward the front)
Recheck the valve timing
Check and adjust the valve clearance
Spark plugs
Semi-circular plug
- Recheck the engine for proper valve timing.
- Install or connect the following:
Cylinder head cover, using a new gasket
Engine wiring harness brackets
Front engine hanger. Tighten the bolts to 30 ft. lbs. (42 Nm).
Cylinder head rear cover. Tighten the bolts to 10 ft. lbs. (13 Nm).
Water outlet, using a new gasket. Tighten the bolts to 14 ft. lbs. (20 Nm).
Upper radiator hose
Exhaust manifold. Tighten the bolts to 36 ft. lbs. (49 Nm).
Remaining components
Negative battery cable
- Fill the engine and radiator with engine coolant.
- Start the engine and check for leaks.
- Check the ignition timing. Road test the vehicle for proper operation.
- Recheck all fluid levels.
NOTE
The engine must first be removed from the vehicle.
- Before servicing the vehicle, refer to the Precautions Section.
- Properly discharge the fuel system pressure.
- Properly disarm the SRS system.
- Disconnect the negative battery cable.
- Remove the hood subassembly.
- Remove the engine from the vehicle and position it in a suitable holding fixture.
- Remove the intake air connector. Remove the alternator.
- Remove the number one exhaust manifold heat insulator. Remove the air switching valve assembly.
- Remove the exhaust manifold.
- Remove the belt tensioner assembly. Remove the number one idler pulley subassembly. Remove the idle pulley assembly and bracket.
- Remove the crankshaft position sensor. Remove the camshaft position sensor.
- Remove the number one intake manifold.
- Remove the cylinder head cover. Remove the crankshaft pulley. Remove the oil gauge subassembly.
- Remove the number two oil pan subassembly. Remove the oil strainer. Remove the oil pap subassembly.
- Remove the timing chain cover. Remove the timing chain guide. Remove the number one chain tensioner assembly.
- Remove the chain tensioner slipper. Remove the number one chain vibration damper. Remove the chain subassembly.
- Remove the camshaft. Remove the valve rocker arms.
- Remove the valve lash adjuster assembly.
- Disconnect the water hoses. Disconnect the engine coolant temperature sensor wire. Remove the bolts and separate the wire from the harnesses. Remove the bolt, and then separate the wire harness bracket.
- Loosen the cylinder head retaining bolts in several steps and in the proper removal sequence. Remove the bolts.
NOTEBe careful not to drop the washers into the cylinder head. Head warpage and cracking could result in removing the bolts in the wrong order.
To install:
- Before installing, thoroughly clean the gasket mating surfaces and check for warpage.
- Apply continuous beads of seal packing, part number 08826-00080 or equivalent, to the cylinder block upper side and cylinder head gasket upper side. Bead width should be 0.15-0.28 inch.
NOTERemove any oil from the contact surface. Install the cylinder head gasket within three minutes after applying the seal packing. Install the cylinder head bolts within fifteen minutes after applying the seal packing. Do not fill the engine with oil for at least four hours. - Be sure to position the cylinder head gasket on the engine block with the lot number stamp facing upward.
NOTEBe sure that the head gasket is installed in the correct direction. Position the gasket gently in order to avoid damaging the gasket with the bottom part of the cylinder head. - Apply a light coat of clean engine oil to the cylinder head bolts. Tighten the cylinder head bolts, in two successive steps, to specification and in the proper sequence.
- Continue the installation in the reverse of the removal procedure.
- Be sure to fill the cooling system with the proper grade and type engine coolant.
- Be sure to fill the engine oil with the proper grade and type oil.
NOTEDo not fill the engine with oil for at least four hours after the cylinder head has been installed. - Start the engine and check for leaks. Correct as required.
- Before servicing the vehicle, refer to the Precautions Section.
- Disconnect the negative battery cable.
- Relieve the fuel system pressure.
- Remove the engine undercover.
- Drain the cooling system.
- Remove or disconnect the following:
Front exhaust pipe
Air cleaner cap
Mass Air Flow (MAF) meter and resonator
- Disconnect the following cables:
Actuator cable from the bracket, if equipped with cruise control
Accelerator cable
Throttle cable, if equipped with an automatic transmission
Heater hose
Upper radiator hose
Power steering drive belt
Air conditioning drive belt, by loosening the idle pulley nut and adjusting bolt
Loosen the lockbolt, pivot bolt and adjusting bolt and the alternator drive belt
No. 2 fan shroud by removing the 2 clips
Fan with the fluid coupling and fan pulleys
Power steering pump and move it aside without disconnecting the pump lines
Compressor and move it aside without disconnecting the compressor lines, if equipped with air conditioning
Air conditioning bracket, if equipped with air conditioning
Spark plug wires with the ignition coils
Spark plugs
No. 2 timing belt cover
- Remove the fan bracket, as follows:
- Remove the power steering adjusting strut by removing the nut.
- Remove the fan bracket by removing the bolt and nut.
- Set the No. 1 cylinder at Top Dead Center (TDC) of the compression stroke.
- Turn the crankshaft pulley and align its groove with the timing mark 0on the No. 1 timing belt cover.
- Check that the timing marks of the camshaft timing pulleys and the No. 3 timing belt cover are aligned. If not, turn the crankshaft pulley 1 revolution (360 degrees).
- Remove the timing belt tensioner by alternately loosening the 2 bolts.
- Remove the camshaft timing pulleys, as follows:
- Using Variable Pin Wrench Set tool 09960-10010, remove the pulley bolt, the timing pulley and the knock pin.
- Remove the 2 timing pulleys with the timing belt.
- Remove or disconnect the following:
Bolt and the No. 2 idler pulley
Alternator
- Remove the Exhaust Gas Recirculation (EGR) pipe and 2 gaskets, if equipped with an EGR valve
- Remove the intake chamber stay as follows:
- Remove the oil filler tube and No. 1 throttle cable clamp by removing the bolt and 2 nuts.
- Remove the intake chamber stay by removing the 2 bolts.
- Remove the following connectors:
VSV connector for the fuel pressure control.
Throttle position sensor
IAC valve connector
EGR valve gas temperature sensor, if equipped
Vacuum Switching Valve (VSV) connector for the EGR valve, if equipped
- Disconnect the following hoses:
Positive Crankcase Ventilation (PCV) hoses
Water bypass hoses.
Air assist hose from the intake air connector
2 vacuum sensing hoses from the VSV
Evaporative Emissions (EVAP) hose
Air hose, from the power steering
Air hose from the air conditioning idle up valve, if equipped with air conditioning
- Remove or disconnect the following:
4 bolts, 2 nuts and the air intake chamber assembly
Intake air connector
- Disconnect the engine wiring harness from the intake manifold, as follows:
Oil pressure sensor connector
Crankshaft position sensor connector
6 injector connectors
Engine Coolant Temperature (ECT) sender gauge connector
ECT sensor connector
Knock (KS) sensor connector
Camshaft Position (CMP) sensor connector
3 engine wiring harness clamps
3 bolts and the engine wiring harness from the cylinder head
- Remove or disconnect the following:
Fuel pressure regulator
Intake manifold assembly
Power steering pump bracket
Oil dipstick and guide
Exhaust crossover pipe and gaskets, by removing the 6 nuts
Left-hand exhaust manifold, by removing the heat insulator and 6 nuts
Right-hand exhaust manifold, by removing the heat insulator and 6 nuts
8 bolts, seal washers, cylinder head cover and gasket
Both cylinder head covers
Semi-circular plugs
Right exhaust camshafts
Right-hand intake camshaft
Left exhaust camshafts
Left-hand intake camshaft
Valve lifters and shims from the cylinder head; arrange the valve lifters and shims in correct order
- Remove the cylinder heads, as follows:
Bolt and disconnect the ground strap
Cylinder head (recessed head) bolt on each cylinder head, using an 8mm hexagon wrench; then repeat for the other side
8 cylinder head (12-pointed head) bolts on each cylinder head, by loosening the bolts in several passes and in the reverse order of the tightening sequence
16 cylinder head bolts and plate washers.
Cylinder head
To install:
- Clean all surfaces.
- Install or connect the following:
New cylinder head gaskets
Cylinder heads
- Apply a light coat of engine oil on the threads and under the heads of the cylinder head bolts.
- Tighten the cylinder head bolts, in sequence, using several passes, as follows:
Step 1: 25 ft. lbs. (34 Nm)
Step 2: Mark the front of the cylinder head bolt with paint
Step 3: An additional 90 degrees
Step 4: Check that the painted mark is now at a 90 degrees angle to the front
- Install the recessed head cylinder head bolts, as follows:
Apply a light coat of engine oil on the threads and under the heads of the cylinder head bolts
Cylinder head bolt on each cylinder head, using a 8mm hexagon wrench; then, repeat for the other side, as shown. Tighten the bolts to 13 ft. lbs. (18 Nm).
Bolt and the ground strap
- Install or connect the following:
NOTECheck that the valve lifter rotates smoothly by hand.
Valve lifters and shims
Camshafts
Check and adjust the valve clearance
Semi-circular plugs
Cylinder head covers. Tighten the bolts, in several passes, to 53 inch lbs. (6 Nm).
Exhaust manifolds, with new gaskets. Tighten the nuts to 30 ft. lbs. (40 Nm).
Exhaust manifold heat insulators. Tighten the nuts to 71 inch lbs. (8 Nm).
Exhaust crossover pipe. Tighten the nuts to 33 ft. lbs. (45 Nm).
Alternator bracket. Tighten to 14 ft. lbs. (18 Nm).
Oil dipstick and guide, using a new O-ring
Power steering bracket. Tighten the fasteners to 14 ft. lbs. (18 Nm).
New gaskets and the intake manifold assembly. Tighten the bolts and nuts to 13 ft. lbs. (18 Nm).
Intake manifold stay with the 2 bolts. Tighten the bolts to 14 ft. lbs. (18 Nm).
Fuel inlet hose
Fuel pressure regulator
No. 3 timing belt cover. Tighten the bolts to 80 inch lbs. (9 Nm).
CMP sensor. Tighten to 71 inch lbs. (8 Nm).
Engine wiring harness
- Install or connect the intake air connector, as follows:
Intake manifold. Tighten the bolts and nuts to 14 ft. lbs. (19 Nm).
DLC1 to the bracket on the intake manifold
Ground strap to the intake manifold
Brake booster vacuum hose to the intake air connector
2 fuel return hoses
Engine wiring harness to the intake manifold
Idle up valve connector, if equipped with air conditioning
- Install or connect the following:
Air intake chamber assembly. Tighten the bolts and nuts to 14 ft. lbs. (18.5 Nm).
Hoses
- Attach the following connectors:
NOTECheck that the pulley bracket moves smoothly.
VSV connector for the fuel pressure control
TP sensor connector
IAC valve connector
EGR gas temperature connector, if equipped with an EGR valve
VSV connector, if equipped with an EGR valve
Intake chamber stay
New gaskets and the EGR pipe. Tighten the clamp nuts to 71 inch lbs. (8 Nm) and the EGR pipe nuts to 14 ft. lbs. (18 Nm).
Alternator but do not tighten the bolts and nuts at this time.
No. 2 timing belt idler. Tighten the bolt to 30 ft. lbs. (40 Nm).
Left camshaft timing pulley
- Set the No. 1 cylinder to TDC of the compression stroke, as follows:
- Turn the crankshaft pulley and align its groove with the timing mark 0on the No. 1 timing belt cover.
- Turn the camshaft, align the knock pin hole of the camshaft with the timing mark of the No. 3 timing belt cover.
- Turn the camshaft timing pulley, align the timing marks of the camshaft timing pulley and the No. 3 timing belt cover.
- Connect the timing belt to the left camshaft timing pulley, as follows:
- Check that the installation mark on the timing belt is aligned with the end of the No. 1 timing belt cover.
- Using Variable Pin Wrench Set 09960-01000, slightly turn the left camshaft timing pulley clockwise. Align the installation mark on the timing belt with the timing mark of the camshaft timing pulley and hang the timing belt on the left camshaft timing pulley.
- Align the timing marks of the left camshaft pulley and the No. 3 timing belt cover.
- Check that the timing belt has tension between the crankshaft timing pulley and the left camshaft timing pulley.
- Install the right camshaft timing pulley and the timing belt, as follows:
- Align the installation mark on the timing belt with the timing mark of the right camshaft timing pulley, and hang the timing belt on the right camshaft timing pulley with the flange side facing inward.
- Slide the right camshaft timing pulley on the camshaft. Align the timing marks on the right camshaft timing pulley and the No. 3 timing belt cover.
- Align the knock pin hole of the camshaft with the knock pin groove of the pulley and install the knock pin. Install the bolt and tighten to 81 ft. lbs. (110 Nm).
- Set the timing belt tensioner as follows:
- Using a press, slowly press in the pushrod using 220-2,205 lbs. (981-9,807 N) of force.
- Align the holes of the pushrod and housing, pass a 1.5mm hexagon wrench through the holes to keep the setting position of the pushrod.
- Release the press and install the dust boot to the tensioner.
- Install the timing belt tensioner. Tighten the bolts alternately to 20 ft. lbs. (28 Nm).
- Using pliers, remove the 1.5mm hexagon wrench from the belt tensioner.
- Check the valve timing.
- Install or connect the following:
Remaining components
Negative battery cable
- Fill the radiator with engine coolant.
- Start the engine and check for leaks.
- Check the ignition timing.
- Install the engine undercover.
- Road test the vehicle.
- Recheck all fluid levels.
These details will help.
Thanks.
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