GX 470 V8-4.7L (2UZ-FE) (2004)
a. Boring the service bolt hole of the sub-gear upward by turning the hexagon wrench head portion of the exhaust camshaft with a wrench.
b. Secure the sub-gear to the main gear with a service bolt.
Recommended service bolt
HINT: When removing the camshafts, make sure that the torsional spring force of the sub-gear has been eliminated by the above operation.
c. Set the timing mark (1 dot mark) of the camshaft main gear at approximately 10° angle by turning the hexagon wrench head portion of the
exhaust camshaft with a wrench.
d. Uniformly loosen and remove the 22 bearing cap bolts in several passes, in the sequence shown.
e. Remove the oil feed pipe, 9 bearing caps, cam shaft timing oil control valve and camshafts.
HINT: Arrange the bearing caps in correct order.
f.
Mount the hexagon wrench head portion of the camshaft in a vise.
NOTICE: Be careful not to damage the camshaft.