Quote:
Originally Posted by SPL
n8kwx — I've now looked through everything I have, but can't find any explicit reference to a crankshaft offset in the Camry Hybrid. That diagram from the "New Car Features Guide" persuades me, however. It's also interesting that the non-hybrid "New Car Features Guide" shows a corresponding diagram for the non-hybrid's 2.4-L 2AZ-FE engine, and it also shows a similar crankshaft offset (no, it's not the same diagram!). I conclude that both Toyota engines (and perhaps all their new engines?) are using an offset as a means of improving fuel efficiency slightly by reducing frictional losses during their power stroke.
Stan
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Stan,
Thanks for the double check. I was going through my service manual .pdfs last night and didn't see anything either.
There was even a chart detailing all of the differences between the hybrid 2.4 and the "regular" 2.4. It mentioned the valve timing changes and a few other things but nothing regarding the crank.
It may be correct that there is a bit of an offset, but I think it's the same as the regular 2.4 based on:
Toyota made all kinds of noise in the Prius literature regarding the offset crankshaft.
It would save manufacturing and logistics costs to keeps mods to a minimum.
Toyota has simplified some other things since the Prius with the TCH.
Marc