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Timing chain failure may call for engine replacement or a costly repair. The most seriously affected units which require the most extensive repairs were produced from 01.03.2007 to 05.01.2009. [4] However, there have been reports of timing chain failure in BMW diesel engines manufactured until 2015.
Diesel engines changed from 4-cylinder N47 to 3-cylinder BMW B37 (116d model) [40] and 4-cylinder BMW B47 (118d, 120d and 125d models). 116i and 118i models changed from 4-cylinder N13 engine to 3-cylinder B38. 120i model introduced, powered by the 4-cylinder N13 engine. M135i power increase of 5 kW ([convert: unit mismatch]) [41]
In a piston engine, either a timing belt (also called a cambelt) or timing chain or set of timing gears is a perishable component used to synchronize the rotation of the crankshaft and the camshaft. This synchronisation ensures that the engine's valves open and close at the correct times in relation to the position of the pistons.
The Prince family shares its basic block dimensions with the previous PSA TU engine family. Engineering design was directed by BMW using their Valvetronic variable valve lift system on the intake side, flow-controlled oil pump, timing chain, single belt drive of all ancillary units, composite camshafts and cylinder head produced by lost-foam casting.
The BMW B37 is a 1.5-litre (1,496 cc), diesel, straight-three engine with a single, mono-scroll and variable-geometry turbocharger. The compression ratio is 16.5:1. The compression ratio is 16.5:1. It is the second engine from BMW 's modular engine plan, sharing most of its components with the BMW B38 petrol engine.
As President-elect Donald Trump's pick for Defense Secretary, Pete Hegseth, wades through multiple controversies, his mom has come out to speak on his behalf.. Penelope Hegseth spoke to "Fox ...