4 Cylinder diesel(4JX1) :
1 - Timing mark
2 - Cam pulley
3 - HP Oil pump pulley
4 - Tensioner pulley
6 Cylinder petrol:
Align crank(C) timing notch mark (1) to oil pump mark.
Align cam pulley(L+R) marks(3) to cylinder head marks
The cam belt has 3 marks, 2 lines and one mark that is actually a row of dots. Align the dots to the crank pulley groove mark(2) and align the other 2 lines to the cam pulley marks. Using a clothes peg to hold the belt to the cam pulleys works wonders to keep it in place while fitting. Please note the arrows on the belt and have them point in the direction of rotation - right to left side of engine
W - water pump pulley
I - Idler pulley
T - Tensioner pulley.
If for some reason you need to realign the cams on each bank :Standing
in front of the car and starting from YOUR left , looking at the cams
you should see RE, RI, LI, LE on each of the camshafts.(R for right
bank, L for left bank, I for intake and E for exhaust) Right bank
camshafts are marked with one dot, left bank with 2 dots on the shaft
itself. To align the camshafts to each other each cam shaft gear has a
mark on it. Draw an imaginary line between the centre of the camshaft
and the centre of the pulley. The alignment mark should be between the
two along this imaginary line. The result will be that RI an RE will be
at the top of each gear. The same with the left bank.