Imagine hearing a strange rumble or knock when starting your engine, while the car loses power and begins to run unevenly. This could be due to worn main bearings of the crankshaft, which significantly affects engine performance. Main Bearing Replacement is a serious task that restores stability to the engine and extends its lifespan. We carefully disassemble the engine, replace worn parts, and reassemble it so you can drive without issues again.
When should you consider replacing crankshaft bearings?
- Rumbling or knocking under the hood while the engine is running
- Loss of power or unstable engine performance
- Increased oil consumption or contamination
- Engine overheating without apparent reason
- Presence of metal shavings in the oil filter
- Starting issues after the engine has been idle
- Unusual noises at high RPMs
What does the crankshaft bearing repair procedure include?
- Removal of the oil pan and cylinder head
- Disassembly of the crankshaft and removal of worn bearings
- Grinding the crankshaft at the bearing seating areas
- Installation of new bearings of appropriate thickness
- Replacement of piston rings and installation of pistons
- Assembly of connecting rods with torque control on bolts
- Installation of the cylinder head with a new gasket and leak testing
- Reinstallation of the oil pan
Additional information about the service
Main Bearing Replacement is a crucial step in a major engine overhaul that helps restore normal operation and prevent further wear of components. Damaged bearings can lead to serious breakdowns, so we approach each stage of the repair with care.
Diagnosis and preparation for repair
First, our specialists assess the condition of the engine and confirm the need for repairs. To replace the bearings, the cylinder head and oil pan must be removed, and the crankshaft disassembled. This provides access to worn components and prepares the engine for further action.
Repair and replacement of parts
After disassembly, the crankshaft is ground at the bearing seating areas to ensure a smooth surface for the new bearings. We install new parts of the appropriate thickness, ensuring the engine operates correctly. If necessary, we replace the piston rings, as this is an important element for the tightness and efficiency of engine operation. All work is performed using specialized tools and with quality control at every stage.
Assembly and testing
After installing the new bearings and pistons, we assemble the engine, installing the cylinder head with a new gasket. We make sure to check for leaks to eliminate any issues. Finally, we fill the engine with fresh oil, replace the oil filter, and recommend changing the timing belt and rollers for reliable engine operation. We ensure that after the repair, your vehicle runs smoothly and reliably for a long time.
