Cylinder head repair
The cylinder head carries the highest thermal load in the engine, so it is the component that suffers during overheating.
Symptoms
- The head has suffered from overheating or shows worn valves and guides during inspection.
What's included
- Typical work includes checking and grinding the face, pressure-testing for cracks, replacing guides and stem seals, machining seats and lapping valves, and replacing worn valves and springs. We start with the pressure test: a crack in the cooling jacket makes later repair pointless, and it is better to know that immediately. Cylinder-head repair in Kyiv includes a measurement record showing the original clearance and worn and replaced parts. We test head tightness after repair.
Additional checks
- Head face checked and ground if needed
- Valve seats machined and lapped
- Head tightness tested after repair
Why it matters
Pressure testing comes first: a crack in the cooling jacket makes further repair pointless, and it's better to find out right away. A measurement record shows the original clearance and exactly what was replaced.
More details
The cylinder head takes the greatest thermal load, which is why it's the part that suffers most from overheating. The typical scope of work includes checking the surface flatness and grinding it, pressure-testing for cracks, replacing the guides and seals, refacing the seats and lapping the valves, and replacing worn valves and springs. We start with pressure testing — a crack in the coolant jacket makes any further repair pointless, and it's better to find out at the first stage. We carry out cylinder head repairs in Kyiv with a measurement protocol: you see what the clearance was, what's worn, and what's been replaced. After the repair we check the head for a proper seal.
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