# Service and Repair of CLAAS Combine Harvester Engines - Professional Internal Combustion Engine Repair

> Contact WIBAKO to restore the engine efficiency of your CLAAS combine harvester. We offer diagnostics, comprehensive repairs, and dynamometer testing, ensuring the highest quality services. Don't wait for a breakdown – take action today!

### Has your engine failed?

## Contact us and restore your machine to full working order

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- **Phone**
  +48 33 870 42 00
  [Call us](tel:+48338704200)
- **WhatsApp**
  +48 532 161 000
  [Message us on WhatsApp](https://wa.me/48532161000)
- **E-mail**
  biuro@wibako.pl
  [Send an e-mail](mailto:biuro@wibako.pl)

Diagnostics and comprehensive repairs

### CLAAS Combine Harvester Service

CLAAS combine harvesters are advanced agricultural machines whose efficiency largely depends on the smooth operation of the power unit. Intensive use during harvest, working for many hours under heavy load, and variable weather conditions cause engines to suffer natural wear over time. At WIBAKO, we specialize in the diagnostics, repair, and comprehensive overhaul of internal combustion engines used in CLAAS combines. We have a professional workshop infrastructure, specialized equipment, and an engine dynamometer, allowing us to carry out the entire repair process—from damage verification to testing the overhauled engine. We serve clients who want to restore engine efficiency and minimize machine downtime during the most critical times of the season.

Restoring full efficiency to power units

### Engine Overhauls in CLAAS Combine Harvesters

During harvest, a combine harvester engine operates for many hours, often under high and varying loads. Under such conditions, even minor irregularities can gradually lead to severe damage. At WIBAKO, we perform comprehensive overhauls of internal combustion engines fitted in CLAAS combine harvesters. Our work covers both wear-and-tear repairs of individual components and complete major overhauls requiring a detailed inspection of all key assemblies.

We start every overhaul with an assessment of the engine's technical condition. Following disassembly and thorough cleaning of the parts, we take measurements to determine the degree of wear and the scope of required work. Depending on the inspection results, our work includes:

**Verification of the engine block, cylinder liners, and working surfaces.**

**Cylinder head repair and reconditioning, including leak testing and valve seat machining.**

**Crankshaft inspection, journal measurements, and reconditioning feasibility assessment.**

**Replacement of worn pistons, rings, cylinder liners, and bearings.**

**Inspection of connecting rods and piston-crank assembly components.**

**Verification of lubrication and cooling systems.**

**Inspection of the injection pump, injectors, and other fuel system components.**

**Inspection of the turbocharger and engine accessories.**

We always tailor the scope of the overhaul to the actual technical state of the engine. We do not limit ourselves to replacing single parts without identifying the root cause of the failure. Our goal is to eliminate the source of the problem and ensure conditions for further, trouble-free operation. Thanks to the experience gained during repairs of various industrial and machinery power units, we are fully prepared to work on engines used in CLAAS combines.

Engine testing after overhaul

### WIBAKO Engine Dynamometer

A properly executed overhaul should conclude with testing the engine under controlled operating conditions. That is why at WIBAKO we have our own engine dyno, where we test overhauled internal combustion engines. This is a crucial step in the whole process, as it allows us to verify not only correct assembly, but also engine performance under load.

After mounting the unit on the test bench, we start up, warm up, and run in the engine according to established procedures. We then gradually increase the load, monitoring the engine's response and checking vital operational parameters. During testing, we check items such as:

**Engine power and torque output.**

**Engine oil pressure and temperature.**

**Coolant temperature.**

**Exhaust gas temperature and operational performance profile.**

**Leaktightness and operational stability under load.**

Dynamometer testing allows us to detect irregularities before the engine is reinstalled in the combine harvester. This enables us to verify the results of our work and reduce the risk of another breakdown during harvest. For the machine owner, this means greater confidence that the overhauled engine is fully prepared to return to work.

When should you contact service?

### Symptoms of Engine Failure in a CLAAS Combine Harvester

During a busy farming season, even short downtime for a combine harvester can lead to major harvesting disruption. Therefore, early signs of abnormal engine operation should not be ignored. Early diagnostics often helps detect a problem before it leads to extensive damage and the need for an expensive major overhaul.

**What symptoms may indicate the need for engine repair in a CLAAS combine harvester?**

**Drop in engine power** – the combine does not reach its usual efficiency, the engine struggles to maintain RPM, or noticeably loses power under load. This can be caused by fuel system problems, turbocharging issues, or mechanical engine wear.

**Excessive exhaust smoke** – black, blue, or white smoke may indicate various issues related to fuel combustion, oil entering the combustion chamber, or leaks in the cooling system.

**Increased engine oil consumption** – needing to top up oil frequently may point to worn piston rings, cylinder liners, seals, or turbocharger problems.

**Engine starting issues** – hard starting, both cold and warm, can be related to improper compression pressure, fuel system issues, or other engine faults.

**Rough running and unstable RPM** – fluctuating RPM, jerking, and noticeable vibrations can indicate issues with the combustion process, fuel injection, or mechanical condition of the engine.

**Unusual engine noise** – metallic knocking, tapping, and other strange sounds can signal excessive play or damaged crankshaft and valve train components.

**Rise in operating temperature** – engine overheating may be linked to a malfunctioning cooling system, lubrication issues, or other damage requiring diagnostic attention.

If these symptoms occur, we recommend inspecting the technical condition of the engine as soon as possible. Continued operation with a fault can damage additional components. At WIBAKO, we help identify the root cause of the problem and select the right repair scope.

WIBAKO warehouse and online store

### Engine Parts for CLAAS Combine Harvesters

Efficient engine overhaul requires not only technical expertise, but also access to the correct spare parts. At WIBAKO, we maintain an extensive warehouse inventory offering a wide selection of internal combustion engine components. We also operate an online engine parts store, enabling customers to find the parts they need without searching for separate suppliers.

Our product range includes pistons, piston rings, cylinder liners, engine bearings, crankshafts, cylinder heads, gaskets, timing components, as well as fuel and lubrication system parts. We supply genuine original parts and high-quality aftermarket replacements from reputable manufacturers. We also assist in finding the correct part number and matching components to your specific engine model.

We understand that selecting parts can be challenging, especially for machines where different engine units were fitted depending on the model and production year. That is why we use engine data, catalog numbers, and nameplate details to identify the correct components. Professional guidance makes it easier to avoid ordering errors and unnecessary repair delays.

### Combine harvester engine repairs on-site at your location

### CLAAS Mobile Field Service

An engine failure in a CLAAS combine during the harvest season demands a rapid response. Transporting the entire machine to a workshop is not always feasible or cost-effective. For this reason, we offer mobile service support, sending technicians directly to clients to assist with field breakdowns.

Our service technicians can perform initial on-site diagnostics, evaluate the nature of the breakdown, and plan the next steps. If the issue can be resolved without removing the power unit, we complete the work right where the combine is parked.

For severe damage requiring detailed inspection, machining, or a major overhaul, the engine can be removed from the machine and transported to our facility in Kojszówka. There, we perform detailed diagnostics, repair, and dyno testing. Once the work is complete, we arrange for the engine to be reinstalled in the combine.

This approach allows us to tailor the repair method to the actual nature of the failure. You don't need to organize disassembly yourself or look for multiple contractors—you can entrust engine service to us across all repair stages. WIBAKO mobile service supports clients across all of Poland.

Comprehensive solutions

### Sales of Internal Combustion Engines for CLAAS Combine Harvesters

Overhauling the existing power unit is not always the best solution. In cases of severe damage, heavy wear, or lack of financial viability for repairs, purchasing another engine is worth considering. At WIBAKO, we also sell internal combustion engines used in construction and agricultural machinery, including CLAAS combines.

We offer complete engine assemblies as well as exchange engines available at lower prices. This is a cost-effective alternative for customers looking to reduce purchase costs and get their equipment back to work faster. Under this arrangement, the customer receives a replacement engine, and the billing terms account for the trade-in of the old engine.

We help you find the right engine matched to your combine's specific model and technical specifications. Selection takes into account engine codes, serial numbers, and technical specs to minimize the risk of purchasing an incompatible unit.

If your CLAAS combine harvester needs an engine replacement, get in touch with our team. We will review available options and help select the solution that best fits your machine's needs. At WIBAKO, you can take advantage of both overhaul services and complete engine sales or exchange units.

### Czy WIBAKO obsługuje również starsze modele kombajnów CLAAS?

Tak, wiek maszyny nie wyklucza możliwości wykonania remontu silnika. Każdy przypadek rozpatrujemy indywidualnie, uwzględniając typ jednostki napędowej, jej stan techniczny oraz dostępność odpowiednich części.

### Czy bardziej opłaca się remont silnika, czy zakup innej jednostki?

To zależy przede wszystkim od zakresu uszkodzeń, kosztu potrzebnych części i dostępności odpowiedniego silnika. Po weryfikacji możemy ocenić, czy remont dotychczasowej jednostki jest uzasadniony, czy korzystniejszym rozwiązaniem będzie zakup innego silnika, również w systemie wymiany.

### Czy przed rozpoczęciem remontu klient poznaje jego koszt?

Tak, po przeprowadzeniu weryfikacji i ustaleniu zakresu potrzebnych prac przedstawiamy klientowi informacje dotyczące planowanej naprawy. Pozwala to uzgodnić dalsze postępowanie przed rozpoczęciem właściwego remontu.

Published: 2026-11-05

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Source: https://wibako.com/about-us/technical-hub/926-service-and-repair-of-claas-combine-harvester-engines-professional-internal-combustion-engine-repair
Contact: +48338704200, biuro@wibako.pl