Removal and installation timing gear wheels (Opel Corsa B)

Camshaft gear

Removal

1. Remove the timing belt (see section Removal and installation the timing belt).

2. Block the camshaft from turning when releasing the central bolt of its gear. Make it from two pieces of steel plates (one long and one short) and three bolts with nuts fork device for holding the wheel. Use one bolt as an axial bolt, fix the other two at the ends of the fork - they are inserted into engagement with the holes in the toothed wheel. Alternatively, you can remove the timing cover (see section Removal and installation the timing cover) and hold the shaft with an open-end wrench by the flats.

Locking the camshaft from turning using a fork-type lock (alternatively, you can remove the timing cover and lock the shaft by the flats with an open-end wrench)



3. Unscrew the central bolt and remove it from the shaft together with the washer. Remove the toothed wheel. Check the tightness of the fit in the journal of the wheel mounting pin - if necessary, remove the pin and put it away in a safe place.

Installation

1. Before installation, check the condition of the camshaft oil seal. If there are any signs of leakage or wear, replace the seal (see section Replacing the camshaft seal).



2. Place the gear wheel on the shaft journal, making sure that the locking pin fits correctly into the receiving hole on the wheel.

When installing the gear, make sure that the mounting pin fits into the receiving hole



3. Screw in the central bolt with the washer placed on it and tighten it to the required force, holding the shaft from turning using one of the methods described in paragraph 2.

Tightening the central bolt securing the camshaft gear (the shaft is held from turning by the chamfers, - the timing belt cover is removed)



4. Install the timing belt (see section Removal and installation the timing belt), then, if removed, install the timing cover (see section Removal and installation the timing cover).

Crankshaft gear

Removal

1. Remove the timing belt (see section Removal and installation the timing belt).

(Material copied from this website: «Opelbook.ru»)

2. Remove the toothed wheel from the crankshaft journal - try to remember which side the wheel was installed on.

3. Check the reliability of the keyway fit in its groove - if necessary, remove the keyway and put it in a safe place.

Installation

1. If removed, install the key into the groove in the crankshaft journal.

2. After making sure that the key enters the keyway, place the gear wheel on the shaft journal with the TDC mark facing outward.

3. Install the timing belt (see section Removal and installation the timing belt).