Engines with timing chains on rear ends?

[jeffmorris]

Why do some engines have timing chains on rear ends? That is where transmissions/transaxles are attached to.

[Blue Bowtie]

Many engines have a transmission attached by an inverted link ("timing") chain. One of the first modern examples of that was Oldsmobile Toronado in 1964.

As for chain as a final drive, that's been around for over 120 years. Up until 1960, Honda was still using chain drive as its main transmission on their S600.

[shorod]

Originally Posted by jeffmorris

Why do some engines have timing chains on rear ends? That is where transmissions/transaxles are attached to.

Are you referring to drive chains, or timing chains? Recently Ford had timing chains connecting the camshafts on the flywheel/flex plate end of the engine to synchronize the cams, but it was not used to drive the transmission.

-Rod

[jeffmorris]

I'm referring to timing chains that drive camshafts, not transmissions. There was a video of a man disassembling an engine that came out of 2022 Audi S5 vehicle. The engine overheated, causing block or heads to warp.

[shorod]

Okay. Yep, at least Ford has done something similar on some of the Explorers.

-Rod