Do it yourself
Frequently asked questions about cars and motorcycles

Replacing the Rocker Cover Gasket

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

The perfect sealing of the rocker cover gasket, which covers the camshaft that controls the intake and exhaust valves, is absolutely essential: any leaks can alter the oil level in the engine, cause soiling of the engine block, and at the same time, contact with very hot elements can cause burns and unpleasant odours. The application of the new gasket first requires proper cleaning of the gasket seat; then, place the gasket under the cover and apply gasket sealant in the areas where the camshaft support zones are located; then position the cover and tighten the corresponding fastening bolts.

Updated on 13 February 2026 by ScegliAuto

Video tutorial

Related tutorials

Vauxhall Astra (1998-2006 / Astra G) Before applying the new rocker cover gasket, thoroughly clean the gasket seat on both the cylinder head side and the cover side to remove any dirt an…
Vauxhall Astra (1998-2006 / Astra G) The gasket kit for the series Smeriglio always includes the rocker cover gasket: after thoroughly cleaning the gasket seats, insert the gasket into t…
Vauxhall Astra (1998-2006 / Astra G) After thoroughly cleaning the gasket seat, both under the cover and on the cylinder head, insert the new gasket into the designated groove along the …

Other guides you may be interested in

How to Replace the Diesel Filter of the Peugeot 3008 1.5 BlueHDI

Briefly, we will see the main instructions for dismantling and replacing the diesel filter of the Peugeot 3008 1.5 BlueHDI. First, locate the diesel filter under the vehicle, so it will be necessary to lift it; then disconnect the electrical connector and the fuel lines from the filter, unscrewing the side screws to remove the cartridge, as shown in the video. At this point, replace the diesel filter with the new one, as well as with the original one; then reconnect the pipes and the electrical connector, following the video tutorial to the end!

Watch the video!


by ScegliAuto

More videos