• The timing chain transmits the rotation force of the crankshaft to the camshaft to perform the rotation timing of the crankshaft and camshaft.
Chain tensioner
• The chain tensioner constantly maintains the timing chain tension and the timing chain operation is stabilized.
Construction
Timing chain
• The timing chain is located between the camshaft sprocket and crankshaft sprocket.
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• Lubrication of the timing chain and each sprocket is performed using the engine oil from the engine front cover.
• The sliding resistance has been reduced and the timing chain behavior has been stabilized by changing to a straight-shaped chain guide (No.2) and setting the chain tensioner load to the required minimum.
• Improvement of the rigidity of the chain guide and tensioner arm and the stability of the timing chain operation have reduced the sliding resistance.
Chain tensioner
• The chain tensioner is located on the cylinder block (engine front part).
• An oil pressure type chain tensioner has been adopted for the chain tensioner.
Operation
Chain tensioner
• Fluctuation in the timing chain tension by oil pressure and spring force is suppressed, and the tension is maintained at a constant.