Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

Replacement of the Rocker Arm Shaft

Model: Vauxhall Astra Astra G - Years 1998-2006
Part: Engine

The operation of the valves in this type of engine is performed through rockers controlled by the camshaft and fixed onto pillars (which resemble the columns of a castle, hence the name "rocker arm shaft") that end with a spherical head; once the cylinder head gasket has been replaced and the cylinder head installed, insert the well-lubricated pillars and rockers; then insert the camshaft into its support, secure it with the appropriate side flange, and insert the oil seal; apply gasket sealant and place the camshaft with its support, tightening the respective fixing pins that also secure the cylinder head to the block. Finally, install the toothed pulley, align the timing marks, and insert the timing belt.

Updated on 13 February 2026 by ScegliAuto

Video tutorial

Related tutorials

Replacement of the front axle shaft of the Opel Astra H.
Replacement of the front axle shaft of the Opel Astra H.
Vauxhall Astra (2004-2010 / Astra H) Let's see in this video the instructions on how to remove and replace the front axle shaft of the Opel Astra H. First we lift the car and go to remov…
How to replace a drive shaft in the Opel Astra?
How to replace a drive shaft in the Opel Astra?
Vauxhall Astra (2004-2010 / Astra H) In this tutorial we can see how to replace a drive shaft in the Opel Astra, very simple operation. Before proceeding, we will have to lift the car at…
Cylinder Head Resurfacing and Engine Gasket Kit Replacement
Cylinder Head Resurfacing and Engine Gasket Kit Replacement
Vauxhall Astra (1998-2006 / Astra G) After resurfacing the cylinder head, check the flatness of the surface using a straight edge and a feeler gauge; replace the valve guide seals using …

Other guides you may be interested in

Remove Front Door Panel on Opel Insignia

How to remove the front door panel on an Opel Insignia? Follow these steps. Before starting the disassembly, disconnect the battery terminals located in the engine bay. Begin the disassembly: use a lever to remove the plastic cover under the door handle, then use a screwdriver to unscrew the securing screws underneath. Once all screws are removed, detach the plastic clips that secure the door. Remove the door panel by hand, disconnect the power connectors and the door release cable.

Watch the video!


by ScegliAuto

More videos