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Cylinder liners & valve seats

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Liner & valve seat know-how

Blog / Knowledge Base

Practical guides on cylinder liners, valve seats and engine machining. We share the knowledge we have gained in production for over 60 years.

Valve Seats for LPG Engines — Why Standard Ones Are Not EnoughGuide

Valve Seats for LPG Engines — Why Standard Ones Are Not Enough

After an LPG conversion valves run hotter and without the "lubrication" of petrol. See why seats designed for gas are needed.

1 min read
Cylinder Liner Honing — What It Is and When You Need ItTechnology

Cylinder Liner Honing — What It Is and When You Need It

Honing gives the liner surface the right roughness and geometry. We explain the cross-hatch pattern and why it determines engine durability.

2 min read
Cylinder Regeneration vs Replacement — Which Pays OffGuide

Cylinder Regeneration vs Replacement — Which Pays Off

Regeneration can be cheaper, but it is not always possible. We compare both options in terms of cost, durability and risk.

1 min read
Symptoms of Worn Cylinder Liners — How to Spot ThemDiagnostics

Symptoms of Worn Cylinder Liners — How to Spot Them

Blue smoke, disappearing oil and a drop in compression are classic signs of liner wear. See how to recognize them and what to do next.

1 min read
Dry vs Wet Cylinder Liners — Differences and How to ChooseGuide

Dry vs Wet Cylinder Liners — Differences and How to Choose

Dry or wet liner? We explain the differences in design, cooling and fitting, and help you choose the right one for your engine.

1 min read