In article <4497c80e_1@news.tm.net.my>, "TE Chea" <4ws@gmail.com>
wrote:

> * via thermostat is [i] steel-piped next to & heat is transferred into
> rocker cover's breather hose
> http://www.autozone.com/images/cds/g...3d800cf9d1.gif
> , this heated air is then sucked through PCV valve & into intake
> manifold.chamber [ii] rubber-hosed into bottom of throttle body
> http://www.autozone.com/images/cds/g...3d800cf4a6.gif
> , & heat flows into the air passing throttle.
> Both designs make air intake & cylinder head unduly hot
> www.circletrack.com/techarticles/1822/ : whenever intake manifold
> heats up ( esp in long trips ), torque drops & warm-starts are difficult
> , both because hot air cannot expand much when heated. Ideal
> temperature of air to receive injectors' spray of petrol is just 40°C =
> 104°F ( www.turborick.com/gsxr1127/gasoline.html para 10.2[7] ).
> Intake manifold where injectors spray petrol ( near cylinder head ) &
> chamber already get heat from manifold's contact with cylinder head,
> EAC & Fast Idle valves ( both heated by * ), certainly do not need
> more heat. If designer wanted manifold to heat up fast, then throttle
> body must have a thermostat to stop * inflow when throttle is heated
> to 40°C. These 2 designs make steep hill climbing slow & weak ; *
> & air intake will both be @ their hottest, & torque will be lowest (
> ironically, when torque is needed most ).
> After I disabled these 2 designs, in 28°C air, [i] chamber, manifold
> & cylinder head are cooler, benefits are many e.g. 1 can use ( cheaper
> ) mineral oil & lower viscosity [ii] torque ( 5% > before ) does not
> drop after * heats up [iii] warm-starts are easier.

There isn't supposed to be much air flowing through a PCV system.

Maybe the thermostat for your throttle body, if it has one, is faulty.
It's supposed to keep it warm, not hot.

Maybe you fixed a symptom, not a problem? Your posting is hardly clear.