Removing
26. On engines with a timing belt drive - you must first remove the toothed belt (see Section 8). On engines with a timing drive, it is possible to loosen the sprocket mounting bolts by means of a chain when the chain is on, and when performing some operations, this is simply necessary.
5.27 Removing the camshaft gear: 1. Adaptation KM-6347; 2. Adaptation KM-956-1; 3. Attachment bolts; 4. Wheel fixing bolt
27. First of all, as a rule, the exhaust camshaft wheel is removed. To remove the gear, install the tools KM-6347 and KM-956-1 (see illustration) so that the grooves of the fixture KM-6347 engaged with the wheel and, turning the tool clockwise, tighten the 2 fixing bolts.
Note: If the front of the camshaft is shaped like a hexagon, you can remove the gear wheel bolt by holding the shaft with a wrench (see below).
28. Use the help of an assistant to keep the wheel from turning with the help of the installed device, unscrew the wheel mounting bolt and remove the wheel. Remove tool from pulley. Repeat the procedure to remove the rest (on respective models) gear wheels.
5.29 Removing the camshaft drive sprocket (using the Y22DTR engine as an example)
29. For removing sprockets (gears - on some models) camshaft drive, it is necessary to unscrew the fixing bolt, hold the corresponding shaft from turning by the hexagonal part using the second key (see illustration).
Installation
30. Install the wheels / sprockets alternately in their places - tighten their mounting bolts by hand.
Note: The intake and exhaust camshaft gears are different on some models - be careful.
Then holding the wheels/sprockets from spinning (see above) tighten the fixing bolts to the required torque. When installing, the alignment marks of the wheel and camshaft must match - usually they are made in the form of guide pins or keys.
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