This is the procedure for valve cover, not cylinder head removal, please improve!!
C-LTC and 2CL-TC Engines
See Figures 1 and 2
- Disconnect the negative battery cable. Remove and label all electrical wiring, connectors and vacuum hoses necessary to gain removal clearance.
Fig. 1: Loosen and remove the cylinder head cover retaining nuts
- Disconnect the PCV hose.
- Remove the six nuts and seal washers from the cylinder head cover. Loosen them in a crisscross pattern.
- Remove the cylinder head cover and the cover gasket from the cylinder head. Discard the gasket and replace with a new one.
To install:
- With a wire brush or gasket scraper, remove all the old gasket material from the cylinder head and the cylinder head cover gasket surfaces.
- When the cylinder head surfaces are free and clean, apply beads of sealant to the cylinder head in the locations shown in the accompanying illustration.
Fig. 2: Be sure to apply sealant on the cylinder head prior to cover installation
- Install the new gasket in the cover. Make sure that the gasket seats evenly.
- Place the cover with the gasket onto the cylinder head.
- Install the six nuts and seal washers. Tighten the nuts to 65 inch lbs. (8 Nm).
- Connect the PCV hose. Connect all removed vacuum hoses, connectors and electrical wiring. Connect the negative battery cable.
- Start the engine and inspect for oil leaks. Repair any leaks as necessary.
2S-ELC, 3S-FE and 5S-FE Engines
See Figures 3, 4 and 5
It is recommended when replacing the valve cover gasket you replace the seal nuts also. They may be reused only if they do not seem to be damaged.- Remove and label all electrical wiring, connectors and vacuum hoses necessary to gain removal clearance.
- Remove the spark plug wires. Disconnect the PCV hose.
- Remove the four nuts and grommets located on top of the cylinder head cover.
Fig. 3: When removing the old grommets from the valve cover, keep them in order of removal-3S-FE and 5S-FE engines
On 3S-FE engines, label or arrange the grommets so that they may be reinstalled in the same order. This will minimize the possibility of oil leakage when the cylinder head cover is reinstalled.- Remove the cylinder head cover and the cover gasket from the cylinder head. Discard the gasket and replace with a new one.
To install:
- With a wire brush or gasket scraper, remove all the old gasket material from the cylinder head and the cylinder head cover gasket surfaces.
Fig. 4: Before installing the valve cover, apply sealant to the head in these locations-3S-FE engine
- When the cylinder head surfaces are free and clean, apply beads of sealant to the cylinder head in the locations shown in the accompanying illustrations.
- Install the new cylinder head gasket in the cover. Make sure that the gasket seats evenly.
- Place the cylinder head cover with the gasket onto the cylinder head.
- Install the four grommets and nuts. Uniformly tighten the nuts in several passes to 13 ft. lbs. (18 Nm) on the 2S-ELC; 17 ft. lbs. (23 Nm) on the 3S-FE and 5S-FE.
On 3S-FE engines, align the grommets as shown in the accompanying illustration to ensure proper sealing of the cylinder head cover.Fig. 5: Align the grommets on the cover as shown-3S-FE engine shown
- Connect the PCV hose. Connect all removed vacuum hoses, connectors and electrical wiring. Connect the negative battery cable.
- Start the engine and inspect for oil leaks. Repair any leaks as necessary.
2VZ-FE and 3VZ-FE Engines
See Figure 6
It is recommended when replacing the valve cover gasket you replace the seal nuts also. They may be reused only if they do not seem to be damaged.- Turn the ignition key to the OFF position. Disconnect the negative battery cable. Wait at least 90 seconds from the time the negative battery was disconnected to start work.
- Remove and label all electrical wiring, connectors and vacuum hoses necessary to gain removal clearance.
- On the 3VZ-FE, remove the V-bank cover.
- Remove the spark plug wires. Disconnect the PCV hose.
- Remove the six (2VZ-FE) or eight (3VZ-FE) nuts and seal washers located on top of the cylinder head cover.
- Remove the cylinder head cover and the cover gasket from the cylinder head. Discard the gasket and replace with a new one.
To install:
- With a wire brush or gasket scraper, remove all the old gasket material from the cylinder head and the cylinder head cover gasket surfaces.
- When the cylinder head surfaces are free and clean, apply beads of sealant to the cylinder head in the locations shown in the accompanying illustrations.
Fig. 6: Apply sealant in these locations prior to cover installation
- Install the new cylinder head gasket in the cover. Make sure that the gasket seats evenly.
- Place the cylinder head cover with the gasket onto the cylinder head.
- Install the six/eight nuts and seal washers. Uniformly tighten the nuts in several passes to 52 inch lbs. (6 Nm).
- Install the spark plug wires. On the 3VZ-FE, install the V-bank cover.
- Connect the PCV hose. Attach all removed vacuum hoses, connectors and electrical wiring. Connect the negative battery cable.
- Start the engine and inspect for oil leaks. Repair any leaks as necessary.
1MZ-FE Engine
- Drain and recycle the engine coolant.
- Disconnect the radiator inlet hose.
- Disconnect the throttle and accelerator cables.
- Remove the air cleaner cap assembly.
- Remove the V-bank cover. Use a 5mm hexagon wrench to loosen the nuts.
- Label and remove all emission control valve hoses. Disconnect any wiring interfering with the valve cover removal.
- Remove the air intake chamber. This will gain you access to the back valve cover.
- Dsiconnect the engine wire from the left hand side, No. 3 timing belt cover, rear side and right hand side. Most of the wiring is secured by nuts and or bolts to the body of the vehicle.
- Remove the ignition coils, make sure the place them in order on a table so not to mix them up.
- Remove the 8 bolts retaining the valve covers and gasket.
See Figures 7 thru 11
Fig. 7: To remove the valve cover, remove the bolts and set them aside ...
Fig. 8: ... then remove the cover from the cylinder head
Fig. 9: Inspect the seals in the top of the valve cover and replace if necessary
Fig. 10: Remove the gasket from the edge of the cover and discard
To install:
- Clean the mating area of the valve cover and cylinder heads well. If necessary, scrape any left gasket from either surface.
- Apply seal packing to the cylinder heads and place new gaskets into position.
Fig. 11: Inspect the cylinder head end seals. Replace with new packing material if necessary
- Attach the valve covers. Uniformly tighten the bolts in several passes to 69 inch lbs. (8 Nm).
- Install the spark plugs in their proper locations, then place the ignition coils into place and secure.
- Attach all engine wiring be sure to secure each harness properly.
- Install the air intake chamber. Refer to Fuel System .
- Attach all emission hoses and wiring.
- Attach the V-bank cover.
this is the wrong answer for the question asked, please improve!