Preventative Maintenance

[nookandcrannycar]

Originally Posted by shastatodd

i read (somewhere) there is a timing chain tensioner adjustment that should be done at 100K. comments?

I've never had that done on my 07, and I'm closing in on 300,000 miles.

[jack black]

Originally Posted by nookandcrannycar

I've never had that done on my 07, and I'm closing in on 300,000 miles.

Have you checked valve clearance anytime in the 300,000 miles?

[bronsin]

Originally Posted by nookandcrannycar

I've never had that done on my 07, and I'm closing in on 300,000 miles.

The Yaris has shim under bucket valve adjusters same as on many high performance motorcycle engines. The ones on my ST1100 were still good at 109k miles when I sold it and every other owner I conversed with on the internet reports similiar experience. Thats for a 1.1 liter 90 hp engine.