Operation CHARM: Car repair manuals for everyone.

Timing Chain: Description and Operation

Timing chain:





A single roller chain is installed between camshaft and crankshaft sprockets, Fig. 5.. The chain is tensioned by a tensioning rail and hydraulic chain tensioner. The hydraulic chain tensioner is mounted in the timing chain cover and is supplied engine oil through an oil passage in the cover. A separate roller chain is used to drive the oil pump from the crankshaft.