When is it actually time to overhaul your engine? This is a question many car enthusiasts ask themselves while servicing their beloved four-wheeler. Perhaps you notice that your car's performance is declining, or you hear strange noises that you didn't notice before. But when is the time to take action and give your engine a thorough overhaul?
At Van Thiel Motor Revision we have the expertise to help you determine when it is time to service your engine overhaul. With years of experience and expertise, we offer professional guidance and services to get your engine back in top condition. Whether it's component wear, power loss or other signs of deterioration. We are ready to help you extend the life of your engine and improve your riding experience.
When should an engine be overhauled?
A well-functioning engine is the heart of your vehicle. But even the best engine wears out over time. Recognising signals in time that an engine is due for overhaul prevents greater damage and high costs. On this page, we explain when an engine overhaul is needed, which symptoms to recognise and what the benefits of revision are.
Signs that your engine needs an overhaul
1. Power loss
Do you notice your vehicle's acceleration is less powerful or performs worse on highways? This may indicate compression loss, often caused by worn piston rings, valves or a leaking head gasket. In such cases engine revision highly recommended.
2. Excessive oil consumption
Are you having to refill oil more and more often? That indicates wear of piston rings or valve seals. If engine oil gets into the combustion chamber, the engine becomes internally fouled and wears out even faster. This is a classic sign that a engine must be overhauled.
3. Smoke from the exhaust
Note the colour of the smoke:
- Blue: combustion of engine oil (wear piston rings)
- White: coolant in the cylinders (possible broken head gasket)
- Black: incomplete combustion (injection or turbocharger problem)
Prolonged smoke usually indicates internal engine damage.
4. Tapping or knocking sounds
Abnormal engine noises such as ticking, knocking or rattling indicate wear on bearings, valves or pistons. If you hear these noises, prompt diagnosis is needed to prevent greater engine damage.
5. Metal particles in engine oil
Do you find metal chips at an oil change or on the oil filter? If so, this is a clear sign of internal wear and tear. This is usually an omen that an engine overhaul is inevitable.
6. High mileage
In cars with more than 200,000 km on the odometer (or trucks with higher rotational loads), chances are that parts like pistons, bearings and valves have seen their best days. Regular maintenance helps, but revision may become necessary.

Why choose timely engine overhaul?
A timely overhaul prevents total engine damage and significantly extends the life of your vehicle. The engine is completely dismantled, cleaned, checked and, where necessary, fitted with new parts. After overhaul, your engine will perform like new again - quiet, economical and reliable.
Benefits of engine overhaul:
- Lower fuel consumption
- Fewer emissions and cleaner combustion
- More reliable engine starting
- Longer vehicle life
- Saving on expensive replacement
What does an engine overhaul cost?
The cost of an engine overhaul depends on the type (petrol. diesel) engine, the severity of the damage and the parts needed. A simple cylinder head revision is more economical than a complete engine overhaul including crankshaft, bearings and pistons. We always give you a transparent quote in advance.
Warranty on overhaul
At Van Thiel Motoren Revisie you get 6 to 12 months warranty on engine overhaul, depending on the type of revision. You will receive clear assembly and commissioning instructions to get the most out of your rebuilt engine.