UrS4 2.2T Avant project

[A80Avant]

We have had this discussion on another thread. Looks like idle has not much relevance than what the oil pressure does as rpm rise. My engine fully rebuilt has 1.4bar with 10w50 fuchs Titan, and gets swiftly to 4bar as early as 2000rpm. A lot of fully rebuilt engines from members are like that.

I am changing the sender and switch as well tomorrow to verify.

Just before the rebuild and with 100k kms from the previous rebuild I was having 2 to 2.5bar on idle and using the same oil pump ( now refurbed as well). But we noticed that Ola had a slightly crushed check valve previously. Don't know if it was causing the higher pressure reading though.

I will report in the weekend of how the pressure behaves.

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[Thuppu]

Measure pressure with mechanical gauge. 1,5 bar sounds too low for re-build engine.

Yes, I have done that. Idle pressure is almost same as on the stock gauge, on high rpm's the stock gauge shows about 0,5 bar to low.

[europeanme]

Didn't have anything to do in the night shift last week when the laser-machine was cutting for several hours so I decide to mod the stock wastegate a bit. Didn't take pics before so you can't see the difference, but I hope it will flow better than stock. It was not possible to increase much the size of the vent without changing the valve and ring, only 34mm -> 35mm but I made some other improvements(I hope ) in the shape...

thats what i like to hear Thomas, a productive night shift!!...:mischeif:

[Thuppu]

Haha, Mike you know, you have to do something or you fall in sleep.

Soon engine start, have only to fit the radiator and IC. Just bought a can of Valvoline VR1 Racing 5w-50 oil. Propably the hot oil pressure wil be 0,5-1bar higher than with the old oil, just like before when I changed the oil. Well, I really hope the knockin noise is gone.

[europeanme]

Haha, Mike you know, you have to do something or you fall in sleep.

.

after 3am was the worse bit for me....

I hope you get it sorted....

[Thuppu]

Yea, 4-5 is sick for me. Mike, how does your project progress?

[europeanme]

Yea, 4-5 is sick for me. Mike, how does your project progress?

i didn't say it got easier after the 3am "deadzone"...and that rolled on til hometime at 6

well i have sorted a clutch out...hopefully....and then balance..early days...just gathering parts....i'm watching your project at the minute...

[Thuppu]

I was wrong, it was not the lifter noise. Seems that I need to strip the bottom end.

Havn't had time to do anything to the car at the previous week. Just changed the bimmer also, and the exchange has got all attention... Pic of the new ride: Klick!

[prj]

****.

Grats on the new ride...

Oh well.

[DS2]

congrats on the "new" car

[Thuppu]

Thanks guys!

[Bram]

like your new ride mate

[Thuppu]

No wonder why the engine had a little strange noise... maybe the oilpressure wasn't enough after all? :corey:

[TimE-J]

That's really bad luck, what's your next step? How badly damaged is the crank?

[A80Avant]

correction,
just noticed that you were seeing 1.5bar warm and 3.5-4bar on higher revs.

that cannot be the only reason for the damage and the noise.
other cars have similar pressures, esp on idle and run ok.

could there be a blockage in the oil feeds somewhere?