Removal & Installation

To Remove:

1. Remove the following
   • V-belt
   • Crankshaft pulley
   • Timing belt cover

     Timing Belt Guide

     Timing Belt Guides

   • Timing belt guides (MT model)

   Timing Belt Guide

   Timing Belt Guide

   Timing Belt Guide

2. If the alignment mark and/or arrow mark (which indicates rotation direction) on timing belt fade away, put new marks before removing the timing belt as follows:
   1. Turn the crankshaft, and align the alignment marks on crankshaft sprocket, intake camshaft sprocket (LH), exhaust camshaft sprocket (LH), intake camshaft sprocket (RH) and exhaust camshaft sprocket (RH) with notches of timing belt cover and cylinder block. ST 499987500 CRANKSHAFT SOCKET
   2. Using white paint, put alignment and/or arrow marks on the timing belts in relation to the sprockets

3. Remove the following
   • Belt idler (A)
   • Timing belt

CAUTION
After the timing belt has been removed, never rotate the intake and exhaust, camshaft sprocket. If the camshaft sprocket is rotated, the intake and exhaust valve heads strike together and valve stems are bent.

To Install:

1. Crankshaft and camshaft sprocket alignment

2. Align mark (A) on the crankshaft sprocket with mark on the oil pump cover at cylinder block

3. Align single line mark (A) on the exhaust camshaft sprocket (RH) with notch (B) on timing belt cover

4. Align single line mark (A) on the intake camshaft sprocket (RH) with notch (B) on timing belt cover
5. Make sure double lines (C) on intake camshaft and exhaust camshaft sprockets are aligned

6. Align single line mark (A) on exhaust camshaft sprocket (LH) with notch (B) on timing belt cover by turning the sprocket counterclockwise (as viewed from front of engine)

7. Align the single line mark (A) on intake camshaft sprocket (LH) with notch (B) on timing belt cover by turning the sprocket clockwise (as viewed from front of engine). Ensure the double lines (C) on intake and exhaust camshaft sprockets are aligned.
8. Ensure the camshaft and crankshaft sprockets are positioned properly

   CAUTION
   Intake and exhaust camshafts for this DOHC engine can be independently rotated with the timing belts removed. As can be seen from the figure, if the intake and exhaust valves are lifted simultaneously, their heads will interfere with each other, resulting in bent valves.

   NOTE: When the timing belts are not installed, four camshafts are held at the "zero-lift" position, where all cams on camshafts do not push the intake and exhaust valves down. (Under this condition, all valves remain unlifted.)

   NOTE: When the camshafts are rotated to install the timing belts, #2 intake and #4 exhaust cam of camshafts (LH) are held to push their corresponding valves down. (Under this condition, these valves are held lifted.) Camshafts (RH) are held so that their cams do not push valves down. Camshafts (LH) must be rotated from the "zero-lift" position to the position where the timing belt is to be installed at as small an angle as possible, in order to prevent mutual interference of intake and exhaust valve heads.

   CAUTION
   Do not allow the camshafts to rotate in the direction shown in the figure as this causes both intake and exhaust valves to lift simultaneously, resulting in interference with their heads. Installation of timing belt: Align the alignment mark on timing belt with marks on sprockets in alphabetical order shown in the figure. While aligning marks, position the timing belt properly. Disengagement of more than three timing belt teeth may result in interference between the valve and piston.

9. Ensure the belt's rotating direction is correct
10. Install the belt idlers.

    NOTE: Make sure that the marks on the timing belt and sprockets are aligned.

11. Remove the stopper pin from tensioner adjuster
12. Install the timing belt guide. (MT model)
13. Temporarily tighten the bolts

14. Check and adjust the clearance between timing belt and timing belt guide
15. Tighten the bolts
    • Crank sprocket belt guide torque specification: 10 Nm (7.2 ft-lb)
    • Cam sprocket belt guide torque specification: 6.4 Nm (5.1 ft-lb)
16. Install the following
    • Timing belt cover
    • Crankshaft pulley
    • V-belt