Engine timing chain replacement
The engine chain is the most important synchronization element of the engine, connecting the crankshaft to the camshaft, ensuring the precise opening and closing time of the valves. Although the chain lasts longer than the timing belt, over time it can stretch, wear out or be damaged, causing unstable engine operation, noise or even serious engine damage. Timely replacement of the engine chain helps to avoid unplanned repair costs and ensures safe operation of the car in the long term. In our car service, the engine chain is replaced by experienced craftsmen, using high-quality parts and complying with the manufacturer's technological requirements.
When is an engine timing chain replacement necessary?
Drivers often wonder when the timing chain needs to be replaced, what the symptoms of wear are, and how this service is performed. Below are the main cases when replacing the timing chain becomes relevant:
Key points when it is necessary to change the engine circuit:
A chain rattling, clanking, or metallic noise is heard during engine operation, especially when starting a cold engine.
Engine operation becomes unstable, power loss or valve “knocking” occurs.
The “Check Engine” warning light comes on or an error code appears regarding the camshaft position.
The chain is stretched or shows signs of wear after visual inspection.
After long-term operation (usually 150,000–250,000 km, depending on the car model and manufacturer's recommendations).
After engine overheating or serious defects – preventive replacement to avoid repeated damage.
After purchasing a used car, if the chain replacement history is unknown.
Visible oil leaks around the chain cover or shaft seals.
How we replace the engine timing chain in our service
Engine and chain system diagnostics
Before starting work, we inspect the condition of the engine and chain to determine the degree of wear and possible secondary damage.
Dismantling the old chain and components
We carefully dismantle the chain cover, remove the old chain, chain tensioners, guides and other worn parts.
Installing new parts
We install a new chain, tensioners, guides and necessary seals, strictly following the engine synchronization markings.
System adjustment and testing
We adjust the chain tension, check the valve and crankshaft synchronization, and perform a test run.
Frequently asked questions about replacing the engine timing chain
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