Engine Unit
1UR-FSE ENGINE MECHANICAL: ENGINE UNIT: INSPECTION
1. INSPECT NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY
(a) Turn the roller by hand to check that it turns smoothly.
If the roller does not turn smoothly, replace the No. 1 valve rocker arm sub-assembly.
2. INSPECT VALVE LASH ADJUSTER ASSEMBLY
NOTICE:
* Keep the adjuster free from dirt and foreign objects.
* Use only clean engine oil.
(a) Place the lash adjuster into a container full of new engine oil.
(b) Insert SST's tip into the lash adjuster's plunger and use the tip to press down on the check ball inside the plunger.
SST : 09276-75010
(c) Squeeze SST and the lash adjuster together to move the plunger up and down 5 to 6 times.
(d) Check the movement of the plunger and bleed air.
OK:
Plunger moves up and down.
NOTICE:
When bleeding high-pressure air from the compression chamber, make sure that the tip of SST is actually pressing the check ball as shown in the illustration. If the check ball is not pressed, air will not bleed.
(e) After bleeding the air, remove SST. Then try to quickly and firmly press the plunger with your fingers.
OK:
Plunger can be pressed 3 times.
If the plunger can still be compressed after pressing it 3 times, replace the hydraulic lash adjuster with a new one.
3. INSPECT CYLINDER HEAD SET BOLT
(a) Using a vernier caliper, measure the minimum diameter of the elongated thread at the measuring point.
Standard outside diameter:
10.85 to 11.00 mm (0.427 to 0.433 in.)
Minimum outside diameter:
10.6 mm (0.417 in.)
Measuring point:
90 mm (3.543 in.) for intake side bolt
85 mm (3.346 in.) for exhaust side bolt
If the diameter is less than the minimum, replace the cylinder head bolt.
HINT
If a visual check reveals no excessively thin areas, check the center of the bolt (see illustration) and find the area that has the lowest diameter.
4. INSPECT CAMSHAFT
(a) Inspect the bank 1 camshaft Camshaft (for Bank 1).
(b) Inspect the bank 2 camshaft Camshaft (for Bank 2).
5. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY
(a) Inspect the bank 1 camshaft timing gear Camshaft (for Bank 1).
(b) Inspect the bank 2 camshaft timing gear Camshaft (for Bank 2).
6. INSPECT CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY
(a) Inspect the bank 1 camshaft timing exhaust gear Camshaft (for Bank 1).
(b) Inspect the bank 2 camshaft timing exhaust gear Camshaft (for Bank 2).
7. INSPECT CHAIN SUB-ASSEMBLY Testing and Inspection
8. INSPECT NO. 2 CHAIN SUB-ASSEMBLY Testing and Inspection
9. INSPECT CRANKSHAFT TIMING GEAR Testing and Inspection
10. INSPECT CRANKSHAFT TIMING SPROCKET LH Testing and Inspection
11. INSPECT NO. 1 CHAIN TENSIONER ASSEMBLY Testing and Inspection
12. INSPECT NO. 2 CHAIN TENSIONER ASSEMBLY Testing and Inspection
13. INSPECT NO. 3 CHAIN TENSIONER ASSEMBLY Testing and Inspection
14. INSPECT CHAIN TENSIONER SLIPPER Testing and Inspection
15. INSPECT NO. 1 CHAIN VIBRATION DAMPER Testing and Inspection
16. INSPECT CYLINDER HEAD SUB-ASSEMBLY Testing and Inspection
17. INSPECT CAMSHAFT OIL CLEARANCE
(a) Inspect the bank 1 camshaft oil clearance Camshaft (for Bank 1).
(b) Inspect the bank 2 camshaft oil clearance Camshaft (for Bank 2).