Hacker News Reader

Comment by chris_st | Hacker News Reader

I think, also, that Toyota still seems to understand the idea of a long-term investment. Other brands seem to be seeking the "short term fix" that will sell more cars this year, in search of immediate profits.

Hats off to Toyota. We're still driving our Prius 12 years after buying it, it's been a great car.

View on HN

Our Prius has been going 14 years now. I've had to replace the battery once (last year) but otherwise has been a remarkably comfortable and reliable car. It's just a shame the new Prius models are so ugly.

I've had my scion for 11 years. Maintenance cost other than tires and oil - virtually zero. They use chains instead of belts too so I didn't even need to change the timing belt.

My '94 Saturn had a timing chain instead of a belt, which was awesome until the chain broke. Due to it being metal it shattered and fused itself in various parts of my engine, destroying the whole thing. Instead of having to pay for a new timing belt, I paid $2,500 for a new engine.

It's usually not much better if a timing belt snaps either. Two valves can't occupy the same space at the same time, so often you get shattered metal everywhere anyways. The difference is that timing chain failures are rare, timing belt failures are expected.

It's actually a valve and a piston you have to worry about. At normal engine speeds the valves will simply snap shut if the cam stops spinning.

Valves slapping piston is generally only a worry with an interference engine design.[1]

1. https://en.m.wikipedia.org/wiki/Interference_engine

Yeah, I was thinking of interference engines, especially OHC/OHV Interference designs. "Timing belt failure" is deeply anchored to Honda engines in my mind, which are pretty much all interference.

My '08 Honda Fit may be interference, but it also has a timing chain that /should/ require no maintenance for the life of the car.

The country I live in owners change the timing belt before recommended date or else they pretty much can't sell the car for the price they want. It's a bid deal. So much so, that when I sold a car last year I was getting somewhat irritated by the question of it having been done or not (said so in the ad, tyre kickers don't know what else to ask about).

Reply on news.ycombinator.com