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Service 03Komatsu Engine Overhaul to Factory Tolerances
From the cylinder head to the crankshaft, we strip down your engine, measure it and bring it back to factory tolerances. Every engine we overhaul is delivered under warranty.
Why an engine overhaul shouldn't wait
The engine is one of the most valuable components of any construction machine. Running on worn piston rings, liners and bearings first drives up oil and fuel consumption, then cuts performance. If the symptoms are ignored, wear that an overhaul could have fixed can turn into permanent damage to the crankshaft, block or cylinder head.
A timely overhaul prevents a major failure that could stop your machine when you least expect it. With a planned overhaul, you decide when the downtime happens, instead of being stuck with an engine failure at the busiest point of the job.
A properly performed engine overhaul gets the machine working efficiently again and helps protect its resale value. A machine with an overhaul record is a far more reassuring option for a buyer.
What our engine overhaul includes
An overhaul means disassembling the engine, cleaning and measuring its parts one by one, and renewing any that are out of tolerance. The exact scope is confirmed by the measurements taken after disassembly.
- Engine disassembly, cleaning and measurement of parts
- Cylinder head, valve and valve seat work
- Piston, piston ring and liner replacement
- Crankshaft inspection and renewal of main and connecting rod bearings
- Injector inspection and replacement where needed
- Oil pump, water pump and turbocharger inspection
- Gasket set renewal and reassembly
- Start-up and checks after reassembly
Signs your engine may need an overhaul
Higher-than-normal oil consumption or blue exhaust smoke
Noticeable power loss along with black or white smoke
Heavy blow-by gas and oil vapor from the crankcase breather
A low oil pressure warning or knocking from the engine
Hard starting and rising fuel consumption
Fuel, coolant or metal particles in the oil
Our overhaul process
- Initial assessmentWe assess the engine's condition from the symptoms, measurements and, if needed, an oil check.
- Disassembly and measurementWe strip the engine down at our main workshop in Ankara and measure all critical parts to define the scope of the overhaul.
- Approval and overhaulWe share the scope and parts options with you and complete the overhaul once you approve.
- Testing and deliveryAfter reassembly, we run and check the engine and deliver it under warranty.
Common questions
Overhaul or a new engine?
That decision depends on the measurements taken after disassembly. If major parts such as the block and crankshaft are still serviceable, an overhaul is often the sensible choice, and we report the engine's condition to you clearly.
Is the engine overhaul covered by warranty?
Yes. Every engine we overhaul is delivered under warranty. You can get details on the warranty terms at the quote stage.
How long does an overhaul take?
It depends on the engine's condition and the parts required. Once disassembly and measurement are complete, we give you a clear work plan.
Do you also overhaul transmissions?
Yes. Besides engines, we also overhaul transmissions, hydraulic pumps and hydraulic control valves, all delivered under warranty.
Get an overhaul quote for your engine
Send us your machine's model and the symptoms you're seeing in the engine, and we'll define the right overhaul scope together.
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