T28 Oil Drain

[sjbsuperman1425]

So I bought an adapter and -10AN fitting to use for my oil drain on my T28 turbo, but it seems like the drain might be at to much of an angle away from the ground for the turbo to drain properly. What do you think? Do I need to clock the center cartridge to fix it? Anybody else run into this problem? I've only clocked the compressor housing so far..



The table is the block...

[s13drifter88]

looks fine to me. seems to be almost parallel with the dump which is good

[sjbsuperman1425]

it is parallel with the dump pipe yes. This picture is taken as if you were on the ground looking up.. Just worries me that i can't see "into" the oil drain you know what i mean?

[float_6969]

You need to clock the center. The inlet/outlet should be perpendicular to the ground. You want that oil to be able to drain out as easily as possible, ESPECIALLY with a BB turbo.

[s13drifter88]

by looking at the orientation of his pic and then estimating the tilt that a ca has he should be very close to perpendicularity.

[D_Stirls]

if your talking about the blue fitting in the pictures then that is one of the water supply/return fittings. These don't really matter in terms of orientation as the water is pressure fed, but Garrett suggest that you have the outlet slightly higher than the inlet (~5 degrees) too allow a convection flow when the engine is turned off.

If you are talking about the oil return (has no fitting on it in the pictures) then that looks roughly correct, but the only way to tell 100% is to dummy fit it.

[blonka]

i just did this conversion on mine, u need to rotate the oil drain almost directly down by rotating the center. this also helps line up all the existing oil and water lines.

[s13drifter88]

for steel braid lines it wont affect too much, just as long as the drain is between 5 and 7 o'clock

[sjbsuperman1425]

any tips or trick to rotate the center? I tried rotating the turbine and compressor housings but I couldn't get the damn turbine housing to move one inch..I'll pick some PB Blaster up from work today and spray it a couple times a day before I try to do it this weekend maybe..

[sjbsuperman1425]

Do I need to just loosen all the bolts in the turbine housing or just loosen them?

[Spawn_CA18]

actually it looks fine to me ,

but if you want to turn center section of turbo , just uninstall actuators arm from exhaust side from small ring that connects actuator arm , then loose all exhaust side bolts and turn exhaust housing , then use loctite for bolts and install bolts again , match the actuators arm , then do the same thing to compressor side.

[D_Stirls]

ARE YOU TRYING TO GET THE BLUE FITTING TO POINT TO THE GROUND WHEN FITTED???

[sjbsuperman1425]

No I'm talking about the oil drain

[D_Stirls]

Cool, i thought for a moment there you were talking about the Blue fitting as you mentioned a -10 adaptor in the first post.

To me it looks like it's pretty close and anywhere from 5 to 7 o'clock will work fine. Really you need to dummy fit it to check and if you need to move the turbine housing you will probably need to soak it in WD40. The bolts only have to be loosened so the clamp brackets are loose.

[sjbsuperman1425]

Sorry for the confusion lol

I will take pics tomorrow of a test fit..I may try and clock it anyway for peace of mind unless it looks decent enough

[s13drifter88]

If you need to move it then loosen the turbine housing bolts (using prenetrating oil i.e. PB Blaster) and use the compressor housing to rotate the chra. It will give you something to hold onto as the chra may be tight to rotate. once the chra is where you want/need it you can then tighten the turbine housing bolts and loosen the compressor housing bolts to clock it to your desired position. it honestly looks fine to me tho. you'll have no drainage issues with where it is now

[sjbsuperman1425]

so I looked at this up close today and eyeballed the drain to be around the 4:30 position..I'm gonna try and soak the exhaust side to clock the center housing so hopefully it works lol

[bentvalves]

I love freshly glass beaded parts, my favorite. since you have it on the bench right now the top 3 of 6 compressor mounting bolts are through holes. The top 3 under the manifold in that area. Consider using some black high temp RTV, just a dab on the threads of those 3 bolts.

[sjbsuperman1425]

Why do I need RTV on the compressor mounting bolts?

[bentvalves]

because 3 of the 6 bolt holes are through holes directley into the compressor housing. only 3 of the 6.

[sjbsuperman1425]

I know what you said, but why do I need RTV on them?

[bentvalves]

because it seals what would otherwise be a small boost leak.

[sjbsuperman1425]

ok I just went and look and I see what you mean. I think I have red high temp RTV. That good?

[float_6969]

Yes, any RTV will work.

And as has been stated, the turbine housing bolts are what hold the center section in place. PB blaster should get it loosened up, but if the turbo has a lot of miles on it, you may have to totally remove the bolts and clamps and get the whole center section loose from the turbine housing and clean it up with a wire brush and then put it back together.

[sjbsuperman1425]

I can remove the turbine housing without removing anything that might mess up anything in the center section though right?

[float_6969]

Right.

[sjbsuperman1425]

I've soaked this thing in WD-40 and Penetrating oil and still cannot get the center to move. I also cannot remove the exhaust housing because two of the bolts are blocked by the oil drain flange. I'm going to try and take it to a local shop and see if they can get it unless someone else can give me some ideas...

I've tried putting it in a vice and using big pry bars but nothing is working..

[sjbsuperman1425]

I also stripped one of the compressor housing bolts..I figure i can just tap it and what not but I'm out of ideas here guys..This "bolt-on" turbo better be worth it..

[sjbsuperman1425]

Can I request some photos of people with T28's and stock manifolds oil drain to compare please? I know I still need to clock it, I just want a visual of where I'll need to be..

[sjbsuperman1425]

someone on a thirdgen forum posted this about getting their turbine housing loose.. what do you guys think, should I just throw it in the oven haha

"Got it off!! I was about to give up after torching it for a long time, then I decided to throw it in the oven for about 20 minutes at 350 degrees....that did the trick. "