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

Cylinder Head Bolt Replacement

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

When performing a repair that requires the removal of the cylinder head, it is important to use a new bolt kit for securing it, as the continuous thermal cycles and the stress from removal may have caused cracks that could lead to failure over time if not already during installation: attempting to remove a broken bolt is quite a challenge! After re-threading the holes, position the cylinder head with the new gasket and use the new bolt kit to secure it: before inserting the bolts, apply grease to the bottom of the thread and under the head; then tighten using a torque wrench and a calibrated wrench.

Updated on 12 February 2026 by ScegliAuto

Video tutorial

Related tutorials

Replacing Cylinder Head Bolt Pins
Replacing Cylinder Head Bolt Pins
Vauxhall Astra (1998-2006 / Astra G) When replacing the cylinder head gasket, it is good practice to use a new set of pins for securing it; first, clean the threaded holes with a tap to …
Replacing Cylinder Head Fixing Bolts
Replacing Cylinder Head Fixing Bolts
Vauxhall Astra (1998-2006 / Astra G) When overhauling the cylinder head due to overheating issues, it is always advisable to use a new set of bolts for its attachment. Start by cleaning …
Replacing the Cylinder Head Gasket
Replacing the Cylinder Head Gasket
Vauxhall Astra (1998-2006 / Astra G) Before installing the new cylinder head gasket, it is essential to check that the previous overheating has not warped the surfaces of both the cylind…

How to Reset the Central Locking of the Volkswagen Golf 4?

If the central locking system of the Volkswagen Golf 4 is not working, it is likely necessary to reset the system: to do this, open the driver's door and detach the side panel of the dashboard next to the steering wheel. Under this panel, you will find the fuses, including the one for the central locking, which is indicated in the manual as number 14. To reset the system, remove this fuse from its housing, then reinsert it or replace it with a new one of the same amperage: this will reset the central locking system.

Watch the video!


by ScegliAuto

More videos