Join Date: Dec 2005
Location: Peachtree City, GA
I know I'm going to catch all sorts of nasty comments for this post, but unless you're having problems or hearing a lot of noise I'd be inclined to leave them alone.
I'm on my 4th Toyota, plus 2 Hondas in between, and all the times I've done the valve adjustment I find myself going through a lot of work only to find that they're still well within spec and don't need to be adjusted. 20R, 20RC, 22RC, 3ZR, etc, etc, they are all excellent products.
Has anyone's experience been that they have found the valves to be out (assuming normal maintenance, oil changes, etc) ?