I took apart the engine on my civic. Purely to see what condition it was in after my hypermiling (with very hot air going into it...)
It appears my valves were leaking somewhat. They were also glazed a little on the seats and had carbon built up on them. However, the cylinder walls had no wear worth talking about and the hone marks can still be seen. I tried to photograph them as close as possible.
The catalytic converter is also in top condition, apart from the dirt that fell in as i removed the manifold.
If i was keeping the car i would have been due a valve regrind and that would have helped FE to no end i'm sure. Would i be right in saying that the constant light throttle caused the buildup on the valves? If so then i should be mindful of that happening with my yaris. The weekly hot run in it should help keep it in order.
Anyway, i just thought i'd share the pics with you all.
ollie
