Here in the United States, belt-in-oil applications are a bit more limited, in the form of the 1.0L Ford EcoBoost gasoline engine, and (if you like to think outside the box), Honda offers the GC and GCV series of small engines featuring an internal oil-bath timing belt. Volkswagen soon followed with its EA211 and EA288 engine families of three- and four-cylinder gas and diesel variants. The failure of a timing belt will more than likely lead to an engine replacement, or an engine rebuild while the failure of the serpentine belt may not have the same impact. The first automotive BIO system was introduced in 2008, hidden inside the European-market 1.8L Ford diesel. A serpentine belt is used to power the car’s peripheral components while a timing belt is used to ensure that the camshaft and crankshaft rotate in proper timing. It will have teeth on the inside because it hooks into gears. This reduces emissions and can increase fuel economy by a little more than 1 percent.ĭue to the improved materials used in the BIO drives, these belts are more temperature-resistant, less prone to stretching than conventional dry belts and have a life expectancy of up to 150,000 miles. The timing belt is located deeper in your engine, and it also looks different than the serpentine belt. Belt-in-oil manufacturers claim that “wet belts” offer up to 30 percent reductions in friction loss as compared to chains or dry belts. By designing a light, quiet and compact belt drive, manufacturers hope to increase fuel efficiency while reducing emissions and NVH, and package it all into ever-smaller engine designs. Especially, if there's other damage that occurred in the process. “Fuel efficiency,” “reduced emissions,” “noise, vibration, harshness” (NVH) and “compact design” are all popular catch-phrases in the auto industry, and these also are the driving forces behind belt-in-oil technology. How much is it to replace a timing or serpentine belt Having a timing belt replaced before it breaks will cost between 500 and 1,000 on average while waiting for it to break before replacing can cost upward of 2,000 or more. Since a timing belt is lighter than a chain, and it can absorb and isolate crankshaft harmonics from the valvetrain, a belt is quieter and doesn’t rob additional power from the engine. As a performance upgrade, belt drives have a couple of advantages. And in reality, with effort, you can get by for a few miles without one. In a nutshell, a timing belt keeps the camshaft and. You can see what the serpentine belt does, and its condition. Now, performance enthusiasts may have some experience with “wet belt” timing systems as an upgrade for the small-block Chevy, but these “new” BIO systems are OEM designs, used for oil pump drives as well as for camshaft timing drives. Many car owners confuse a serpentine belt with the timing belt, but the two serve different purposes.
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