Re: Some details of the 2AZ-FE engine

"Steve" <no@[EMAIL PROTECTED]
> wrote in message 
news:AM6dnZjsFev_EhrVnZ2dnUVZ_vednZ2d@[EMAIL PROTECTED]
> ****ms-in-a-bucket cam followers for valve adjustment is positively 
> stone-age (the last car I had so-equipped was a '78 Plymouth Horizon
with 
> the VW-based SOHC 4). Rocker-tip mounted hydraulic lash adjusters that
are 
> common now don't carry enough mass penalty to worry about and are
commonly 
> used in engines with 7500+ RPM redlines. That said, I never had to
adjust 
> the valves on that VW engine either. Everything else about it sucked,
but 
> the valves never needed adjustment! ;P

Numerous modern engines from Toyota and Nissan do not use hydraulic lash 
adjustment. The most modern Camry V-6 does have hydraulic lash adjusters, 
the older Camry V-6 and 4 cylinders do not. The engines without hydralic 
lash adjustment do require routine valve clearance checking (if not actual

adjustment). I think this requirment is widely ignored. Interesting,
Fords, 
newest V-6 also does not have hydraulic valve adjustment - I guess they
have 
learned from Toyota.

Ed