CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during camshaft removal/installation are shown below.
| Replaced Part or Performed Procedure | Necessary Procedure | Effect/Inoperative Function when Necessary Procedure not Performed | Link |
|---|---|---|---|
| Disconnect cable from negative auxiliary battery terminal | Memorize steering angle neutral point | Lane departure alert system (w/ Steering Control) | |
| Simple intelligent parking assist system*1 | |||
| Toyota parking assist-sensor system*1 | |||
| Pre-collision system | |||
| Initialize back door lock | Power door lock control system | ||
for SFI system |
Inspection After Repair |
|
*1: When performing learning using the GTS.
PROCEDURE
REMOVE NO. 1 ENGINE UNDER COVER
DRAIN ENGINE COOLANT (for Engine)
REMOVE WINDSHIELD WIPER MOTOR AND LINK
REMOVE NO. 1 HEATER AIR DUCT SPLASH SHIELD SEAL
REMOVE WATER GUARD PLATE LH
REMOVE COWL BODY MOUNTING REINFORCEMENT LH
REMOVE COWL BODY MOUNTING REINFORCEMENT RH
REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY (for LHD)
REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY (for RHD)
DISCONNECT TRANSMISSION CONTROL CABLE ASSEMBLY
Remove the bolt to disconnect the transmission control cable assembly from the cylinder head cover sub-assembly.
DISCONNECT NO. 2 VENTILATION HOSE
REMOVE IGNITION COIL ASSEMBLY
REMOVE CAMSHAFT POSITION SENSOR
DISCONNECT ENGINE WIRE
Disconnect the 3 connectors.
Disengage the 4 clamps.
Remove the bolt and disconnect the engine wire from the cylinder head cover sub-assembly.
DISCONNECT NO. 1 FUEL VAPOR FEED HOSE
REMOVE EGR PIPE ASSEMBLY
DISCONNECT NO. 8 WATER BY-PASS HOSE
DISCONNECT NO. 9 WATER BY-PASS HOSE
REMOVE PURGE VALVE (PURGE VSV)
REMOVE FUEL VAPOR FEED PIPE
REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY
REMOVE CYLINDER HEAD COVER GASKET
REMOVE SPARK PLUG TUBE GASKET
SET NO. 1 CYLINDER TO TDC (COMPRESSION)
Set the No. 1 cylinder to TDC (Compression).
| *a | Paint Mark |
| *b | Timing Mark |
Place paint marks on the chain sub-assembly in alignment with the timing marks on the camshaft timing gear assembly and camshaft timing sprocket.
REMOVE NO. 2 CHAIN VIBRATION DAMPER
Using SST, remove the 2 bolts and No. 2 chain vibration damper from the No. 1 camshaft bearing cap.
REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY
REMOVE CAMSHAFT TIMING SPROCKET
| *a | 14 mm union nut wrench |
| *b | Hold |
| *c | Turn |
While holding the hexagonal portion of the No. 2 camshaft with a wrench, remove the bolt with SST and 14 mm union nut wrench.
While removing the chain sub-assembly, pull out the camshaft timing sprocket horizontally and then upward.
INSPECT CAMSHAFT TIMING GEAR ASSEMBLY
REMOVE CAMSHAFT BEARING CAP
Uniformly loosen and remove the 10 bolts in the order shown in the illustration.
Note
Do not loosen the other 10 bearing cap bolts in this step.
Tech Tips
Arrange the removed parts in such a way that they can be reinstalled to their original locations.
Remove the bolts and camshaft bearing caps in the order shown in the illustration. Immediately after removing each camshaft bearing cap, install service bolts and spacers in the order shown in the illustration.
| *a | The removal order of the parts | *b | The installation order of the service bolts and spacers for temporarily tightening the camshaft housing sub-assembly |
| *c | Service bolt and spacer (Used to temporarily secure the camshaft housing sub-assembly) | - | - |
Note
If the bolts are loosened all at once, seal packing on the camshaft housing sub-assembly and cylinder head sub-assembly may separate, resulting in oil leaks. Therefore, be sure to install the service bolts and spacers to one camshaft bearing cap at a time.
Do not install the camshaft bearing caps when installing the service bolts and spacers.
Tech Tips
Arrange the removed parts in such a way that they can be reinstalled to their original locations.
Part number for the service bolt used to temporarily secure the camshaft housing sub-assembly: 91551-G0875 (15 bolts)
Part number for the spacer used to temporarily secure the camshaft housing sub-assembly: 90387-12048 (15 spacers)
REMOVE NO. 2 CAMSHAFT
Remove the No. 2 camshaft from the camshaft housing sub-assembly.
REMOVE CAMSHAFT
Hold up the chain sub-assembly and remove the camshaft from the camshaft housing sub-assembly.
Suspend the chain sub-assembly with a string or equivalent.
REMOVE CAMSHAFT TIMING GEAR ASSEMBLY
Secure the hexagonal portion of the camshaft in a soft jaw vise.
| *a | Do not remove |
Remove the bolt and camshaft timing gear assembly.
Note
Before removing the camshaft timing gear assembly, make sure that the lock pin has been released.
Do not remove the other 4 bolts.
Keep the camshaft timing gear assembly horizontal while removing it from the camshaft.
If the camshaft timing gear assembly is to be reused, be sure to install it with the lock pin released.
REMOVE NO. 1 CAMSHAFT BEARING
REMOVE NO. 2 CAMSHAFT BEARING