It won't need replacement before 100kmiles which is where factory service guidelines stop. But the rollers will wear, causing the chain to 'stretch', and it will eventually exceed the length at which the tension pulley can still keep it taut. As will the cogs wear. But there is never a given replacement interval. A timing chain is a robust, heavy-duty, hardened metal chain that is fitted inside the engine casing and loops around the gear wheel in the camshaft and crankshaft to help keep the pistons and valves synchronised. Timing chains are typically installed on more modern vehicles and high-end vehicles like Mercedes Benz vehicles because timing An oil expert has said that there hasn’t been a single report of a N47 timing chain snap if you drive sensibly and change your oil before 10,000k miles, this is a complete myth, which has been fueled by BBC Watchdog. The problems have occurred due to two primary factors. The long ‘official’ BMW service intervals and driving style. M. mike1967. 15722 posts · Joined 2017. #8 · Dec 26, 2019. its harder to not notice a timing chain failure on them ie you cant miss it its that in your face every time, they could also roate the bottom end while watching the camshaft for movement that only works when the chain is totally snapped and not slipped as most slip and move the Toyota Corolla Timing Belt Or Timing Chain (1983 - 2023) From the model year 1983 to 2023, the Toyota Corolla has various engines with either a timing belt or a timing chain. It also has both interference and non-interference engines. Scroll down to see specific data for your model year below. The timing belt (or chain) maintains the proper silentdub Discussion starter. 13 posts · Joined 2015. #1 · Oct 17, 2019. On the caravan, 2014 3.6 Pentastar, I found several videos that show the chain being replaced but the engine was out of the vehicle for this service. Does anyone have a video of the service while the engine is in the vehicle or does it need to be removed to replace? Check for the wear first. Sometimes noises from the water pump being bad is mistaken for a timing chain needing replacement. You can always check for wear using the little measuring scale that is attached to a 13 mm bolt on top of the chain cover (I think that is where it is). Check for the exact location on this forum. The dealership will also flush and replace brake fluid every two years. Figure 2. Brake service intervals are also determined by the CBS. Regular Service Intervals. Other maintenance items are completed at specific mileage intervals, which is the traditional way of doing things in the automotive industry. Hello there, I own a '01 BMW E39 Touring with about 127k miles/205k Kms and an M54 engine. and wanted to ask when I have to change the timing chain and guides, since I've seen enough of the M62 and S62 engines and others, really want to know it. Doing a full restoration and want to enjoy this sweet Bimmer for the next 20+ years. HOW OFTEN SHOULD CHANGE TIMING CHAIN ON MAZDA. WHEN TO REPLACE TIMING CHAINIn this video we will explain how often we change timing chain on Mazda car. Most yDdkdh.