20V Blacktop oil pressure?

[slowboy2]

what is the oil pressure for a blacktop 20v?
cold en hot oil temp.
i have a TRD oilfilter en castrol 10W40 oil. my presure is cold 6.2 bar.
and hot around 3.2 bar. 1800 RPM. is this normal?

[[Walaki]D`Lair]

My oil pressure with 5W50 oil is 2-2.5 bar at idle, so i guess its normal

[allencr]

slowboy2 Wrote:...presure is cold 6.2 bar.

That is higher then it should be if the gauge is accurate. Has anyone stuck a shim in the oil pump relief valve? I hope it isn't going any higher then that when it's cold & revved up!

[slowboy2]

when it is cold and i rev it up it go to 7 bar.
when it is hot it wil go to max 6 bar.
idle cold is 6.2 and idle hot is 3.2
first it was cold 5.5 bar en hot 3 bar idle. and max 6 bar reving.
i have cleaned the sensor for the vvti. is this the problem?
where can i find the oil pump relief valve?

[allencr]

slowboy2 Wrote:when it is cold and i rev it up it go to 7 bar.
when it is hot it wil go to max 6 bar.

You've got an optimistic gauge or a valve someone has F'd with. Your losing some HP from the extra/useless pressure it's putting out and and have a chance of popping the filter or breaking the pump.
I don't understand 'first', first what, before the vvti sensor thing?
Valve is on the pump body.

[slowboy2]

i have cleaned the sensor in front of the exhaust manifold.



and after that i get more oil presure.
my engine is also very dirty.



can this be the problem?
this foto is from a year ago.

[Ivan141]

Looks like a stereotypical 'low mileage' + low maintenance 20v.
Caked oil crust everywhere. Isnt there a temp sensor in the head that's related to this issue in blacktops? My friend had one and told me about it, but he sold the car a long time ago already.

[slowboy2]

thanks. i wil look at the oil pump asap.
my oil pressure is now about 7 bar cold. but it is cold here.

at ivan141: bedoel je toevallig de koelvloeistof sensor achter in de kop. bij het thermostaat huis? er zitten daar 3 sensoren 1 voor de airco. 1 voor de temp sensor voor dashboard en 1 voor de computer. welke kan dan het probleem geven?

sorry that it is not in english.

[Ivan141]

Dunno to be honest.. just something I overheard. Many engines have the sensor in the back of the cyl.head.
The caked oil is a direct result of the combination: high engine temp, not enough oil changes. 20v's require more frequent oil changes due to the high temps.