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Aside from the belt/chain itself, also common is a failure of the tensioner, and/or the various gear and idler bearings, causing the belt/chain to derail. Furthermore, in engines where the timing belt drives the water pump, failure of the water pump can cause the pump to seize, which can break the timing belt or chain.
A pair of poppet valves bent by collision with a piston after timing belt failure. The engine was running at 4500 RPM. In interference engine designs, replacing a timing belt in regular intervals (manufacturers recommend intervals ranging from 60,000 to 104,000 miles) or repairing chain issues as soon as they are discovered is essential, as incorrect timing may result in the pistons and valves ...
February 8, 2011 – US: NASA and NHTSA inquiry reveals that there were no electronic faults in Toyota cars that would have caused acceleration issues. However, accelerator pedal entrapments remain a problem. [47] February 22, 2011 – US: Toyota recalls an additional 2.17 million vehicles for accelerator pedals that become trapped on floor ...
In November 2011, exports of the XL30 Sienna to South Korea began, making it the first Toyota minivan sold in the country. [25] In July 2016, the Sienna was officially introduced to the Taiwanese market. [26] In the U.S., the third-generation Sienna was offered in five trim levels, a base grade, LE, XLE, Limited and for the first time the SE trim.
The K110 was Toyota's first belt-type CVT and production began in August 2000. Toyota said that the transmission was both fuel-efficient and offered high driving performance. The K110 features a torque converter with a long-travel damper to help achieve quiet operation and improved fuel efficiency .
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Most often, the power is conveyed by a roller chain, known as the drive chain or transmission chain, [1] passing over a sprocket, with the teeth of the gear meshing with the holes in the links of the chain. The gear is turned, and this pulls the chain putting mechanical force into the system.
An automotive belt with the number "740K6" or "6K740" indicates a belt 74 inches (190 cm) in length, 6 ribs wide, with a rib pitch of 9 ⁄ 64 of an inch (3.6 mm) (a standard thickness for a K series automotive belt would be 4.5mm). A metric equivalent would be usually indicated by "6PK1880" whereby 6 refers to the number of ribs, PK refers to ...