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Old 10-10-2015, 01:36 PM   #7 (permalink)
jamesqf
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People have swapped larger engines into the Insight, but from what I've read it's far from a simple bolt-in.

I've had mine for 10 (12?) years now, and have had very little in the way of problems, none of which have cost me much over $100 (doing the work myself). EGR valve and O2 sensor are the only things I can recall offhand. Mechanically almost nothing, though I am going to have to do the notorious transmission input shaft bearing replacement sometime. However, that is (at least from what I read) a one-time thing, as the replacement bearing is higher quality.

With the IMA battery, there are some tricks to keeping one going, mainly pulling it out and "rebalancing" the cells every couple of years. Not at all difficult, though it takes several days. (Not working time: you spend 5 minutes swapping leads every few hours.) Mine's still working after 15 years. Maybe not as good as new, but I'm still getting ~70 mpg.
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