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

Replacing Valve Stem Seals

Model: Citroen Zx MK 1 - Years: 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998
Part: Valve

Video tutorial

When performing a repair that requires the removal of the cylinder head, it is good practice to replace the valve stem seals, which act as oil seals. To replace them, you need to remove the valves by compressing the return springs with a specific arch clamp and detaching the half-shells to free the valve stems.

Once the valve is removed, extract the old seal, clean the seat, and lubricate it with clean oil to insert the new seal using the appropriate tool. Then, reverse the process to install the valve by compressing the spring and reattaching the half-shells.


Updated on 15 February 2026 by ScegliAuto


Related tutorials

Complete Cylinder Head Overhaul Instructions
Complete Cylinder Head Overhaul Instructions
Citroen Zx (1991-1998 / MK 1) When performing a complete overhaul of the cylinder head, it is important to machine the surface to eliminate any warping; after this operation, it i…
Camshaft Replacement
Camshaft Replacement
Citroen Zx (1991-1998 / MK 1) This tutorial shows how to install a new camshaft on a Citroen ZX. The camshaft converts the vertical motion of the pistons into the circular movemen…
Replacing the Camshaft Oil Seal
Replacing the Camshaft Oil Seal
Citroen Zx (1991-1998 / MK 1) When performing engine maintenance that requires the disassembly and removal of gaskets and oil seals, it is always advisable to replace them with ne…

Other guides you may be interested in

How to Activate the Automatic Folding and Unfolding of the Wing Mirrors on the Jeep Compass

Follow these brief instructions to activate the automatic folding and unfolding of the external wing mirrors on the Jeep Compass. First, get inside the vehicle and turn on the ignition; then press the button located beneath the mirror glass adjustment to electrically open the mirror, as shown in the video. Pressing the button in the opposite direction will close the mirrors; by holding the button, the mirrors will open and close automatically!

Watch the video!


by ScegliAuto

More videos