Turbo Oil Supply Screen Cleaning

[arronm]

Yep 0.8mm in the inlet.

[discostig]

Smash the oil!

[Ralph Wiggum]

Yeah. With pikchas and stuff.

Give me T minus 7yrs 5mths and 2days and I'll see what I can arrange

[ljf12]

Yep 0.8mm in the inlet.

From what I have been told by Garrett (it is also on their website) the oil pressure should not be higher than 45 PSI upstream of the turbo .

I am pretty sure that all Garrett ball bearing turbochargers have a built in restrictor, according to them it would appear you need to fit a restrictor in the line if the pressure is too high.

[ljf12]

I fitted a braided in line filter kit to an FG, oil was getting past the turbo seals. 1mm restrictor fitted in the line dropped the pressure to recommended levels, no more problems with oil past the seals. Obviously not happening to everyone.

[arronm]

So to drop oil pressure you put a 35 thou (0.9mm) restrictor in front of the smaller 0.8mm restrictor already in the turbo. Doesnt sound right to me

[ljf12]

So to drop oil pressure you put a 35 thou (0.9mm) restrictor in front of the smaller 0.8mm restrictor already in the turbo. Doesnt sound right to me

I could be mistaken but I am pretty sure that this is what the manufacturer is telling you to do. I only went down this path because I was having issues.

When you consider that the vast majority of the time your engine revs would be under 2000 (prior to fitting a restrictor hot pressure was 45psi @2000), I don't think that higher pressure at higher revs is a problem, I don't think you can damage the seals. From what I have read providing oil is not getting past the seals you have nothing to worry about, but if (like me) oil is evident a restrictor might help.

With ball bearing turbos Garrett do not appear to have any interest in flow rate only pressure prior to the turbo, it is my understanding they need very little oil to operate.

[***VX*R8***]

I did this today. This thread was a huge help. I ended up doing it from the top and was actually surprisingly easy (2011 G6ET). Hardest bit I found was getting a full size 24mm spanner to hold the line still.

I have an Earls Stealth Oil Feed Line & Filter but decided to just remove the filter and leave the original line on.

!!!THANKS FOR THE WALKTHROUGH!!!

[GUN-808]

Quick question guys..

When u add the Earls filter kit do u remove the original screen in the adapter to the block entirely ?? or just clean it and reinstall the factory screen ?? I left mine in there when I did it but am thinking now that its useless and poses the same issues as to why it was replaced in the first place lol

Edited 28/07/14 02:04 AM by GUN-808

["Captain Retard"]

Remove it !

It's the main problem.