nopistonsfc

what shoud the oil pressure be in a s5 TII at idle, driving speeds (65mph) and when your pushing it. I'm getting 17psi at idle, 42 driving speed and around ~50 when under load, is this right??, seems a little low to me

TiGeRC|aw

i drive a S5 na and i get about 35ish idle and 70ish under load =\

Emitai

yeah that seems pretty low man, it's really not suppose to got below 30

Icemark

Should not be under 30 at idle if the correct oil weight is used and the engine is warm.

Sounds like the E-shaft thermo valve has failed. Don't drive the car until it is fixed.

nopistonsfc

thermal valve is fine,

BGH

Been there done that E-shaft thermo valve is gone.
Pulled the motor and that is what I found.
Speaking from experience.

nopistonsfc

just rebuilt the enging 300 mi ago and used a new one when i rebuilt it.

Icemark

Gone or replaced with a pellet??? You need something in there

which is it gone or replaced??? And a new one wouldn't matter if you had a small peice of metal jamming it closed (you know the kind of little piece of metal that gets into the oils system when you blow a motor).

nopistonsfc

yeah, i know what your talking about,, the first quote you were talking about is someone elses, i replaced the unit with a new one from factory mazda. I cleaned the hell out of the engine, (this is about my 15th rebuild, i work for a rotary garage) and i haven't come across this problem before, i'm going to take out the front main bolt and see whats going on in there.

BGH

Icemark,
What I meant by gone is its no good.
Mine was stuck closed at 165,000 miles.
Low oil pressure on mine started at 130,000
follwed by smoke { bad oil seals} shortly
after