I've got a small leak causing smoke on my Turbo which I believe is at the rear fitting holding the pipe on the Turbo.

It could be an oil leak , but everything oil related looks fine without leaks.

I don't want to take off the entire turbo/intake assembly if its 'possible' to fix this leak by merely tightening the fitting more(banjo bolt iirc).

This leak isn't a big leak , it started after a while of driving and idling, you can see smoke coming up right around the heat shields but there is no evidence as to where its coming from (which leads me to believe its the back fitting , and burning before it can seep down into a visible place).

This is a stock s5 Turbo, I was thinking with some kind of special tool I could get this piece tightened down more after removing the heat shields.

Until I can fix it , ill just leave it as is , its a small leak like I said but if its causing air to get in the system as well as leaking out coolant, it definitely needs to be fixed.

Any help is appreciated, thanks.

 

it's a huge pain to get to the inside banjo bolt to try and tighten the line with the turbo on the car.

i made a Z wrench for this purpose(heated with a torch and made 2 45* angles), 22mm.

 

Wanna send me it on a rent a tool basis ? lol

I hate to take off like 10+ bolts to tighten one , so lame.

If I could copy to your specifications and make an identical copy that'd be legit, are u sure its a 22 and not a 23?

I know the oil cooler banjos are 23.

I still say , why do all the best rotary guys have to be 10 light years away ugh, I bet you could fix this problem in less time than it'd take me to drink a 40 oz.

 

it's a 22mm, i'll see if i can take a picture.

ideally i would recommend taking the turbo off though, the wrench just barely fits and you might not even get enough on it to tighten it properly with. i also had to bend the inner heat shield out of the way and remove the oil feed line to even get it on.

 

Taking the Turbo off is such a b*tch , and really you have no way to test for leaks until its all put. back on.

I know it can be done , I just am a novice as far as all this goes to be perfectly honest, this is the first Turbo long block I've assembled.

I'm assuming the entire intake manifold needs to be removed to pull off the Turbo,though I've seen stories of it being done without.

 

opposite, the turbo has to come off to remove the intake assembly. the turbo can be removed without touching the intake.

 

well that makes it sound more promising, everything is a damn tight squeeze in there from what I remember.

I just want the leak gone, small or big leak I don't want any.

You can't see the smoke here , but i this is where I see it coming from, around the center part of the Turbo but its coming from underneath somewhere that's not visible, maybe if I take the heat shields off its source will be more prevalent.

 

take a look underneath the car to see if there is any oil residue on the drain pipe, it may not actually leak if it is cooking off.

you can also pressure test the cooling system to verify the banjo is leaking or not, before wasting time on it.

 

I can take some pics , I've looked before and nothing really stood out as where the leak is coming from, so my educated guess was that its from an area you can't see.

edit - also after running it and letting it warm up, after shutting it off ill sometimes hear a noise coming from the coolant system, sounds like it could be coming from the Turbo area, upon squeezing the upper radiator hose the sound will diminish.