North American Turbocoupe Organization

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HELP , ok I just got my 1987 turbo coupe back together and low and behold it appears my turbo is leaking from the center section? is this a rebuild issue that can be done? or is it cheaper to replace it ? and how do you tell the difference in IHI and the other brand ? any help id appreciate
another question if the return line is restricted will this cause the center section to leak oil ?
Is it leaking on the supply side (top of the center section), or at the supply manifold on the drivers side near the back of the engine, or the return side (bottom)? Any connection can be cross threaded and then leak. I have heard of the 90* brass fitting cracking. Check for crossthreading on the supply line. Tell us more. New supply lines can be purchased from Stinger, see below.

If from the top, can you tell it's where the 90* brass fitting goes into the center section or is it where the supply line goes into the 90* brass fitting?

If from the return line, is it at the center section or at the block or it somewhere along the return line? Are you using the original return? If you got the original return line and it's leaking along the flex steel part, it's fried and you will need to purchase an aftermarket return line. See Stinger Performance: http://www.stinger-performance.com/stockparts.html
for both supply and return lines. Scroll down the page.

The IHI is what came stock on the 87-88s but many have been upgrades to Air Research T3s or T3/T4 or Holsets. The IHI will have 2 coolant lines going to the center section on the exhaust manifold SIDE of the turbo, as it sits on the engine. A T3 or T3/T4 will have one line on the exhaust manifold saide and one coolant line on the shock tower/fender side of the center section

The return line is only gravity flow and must travel down hill all the way to the block, no downhill then uphill. If the line runs uphill on the way to the block it will back up and soon be under some pressure that may cause a leak.
From what I can see its leaking from the bottom rear of the turbo and yes I have the original line it does not appear to be leaking it look like the center of the turbo , and I found that on stinger but autozone also ha
s the turbo flange and I figure I can have a line made at a hydraulic store
http://www.autozone.com/power-adders-and...708981_0_0

If the center section of the turbo is leaking can it be rebuilt ? and it seems to be causing smoke under heavy boost
I have the IHI turbo then