oil leak

I have discovered an oil leak at the top of my turbo it is the oil line that feeds the turbo. I have removed the oil line and tried to see what was wrong could not find out what caused the leak and can not stop from leaking.It is a T3 turbo and has been in the car for about 1 year never had a problem need some help with this one thanks for any help

Are the threads on the feed line still in good condition? As long as the line is being threaded properly and you're tightening down the line enough (with a 7/16" line wrench, NOT a regular open end wrench), it really shouldn't be leaking unless there is a hairline crack somewhere.

Have you tried sliding the coupling nut back a bit so you can visually inspect the flared end of the feed line? Also check out the elbow that screws into the top of the turbo.

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Estoril blue 1987 TC 5spd, 141k miles
PRofec B electronic boost controller, kirban fpr, walbro 255 pump, Bailey BOV, Spearco 26x8x3 FMIC, a237 cam, t3/t4 50 trim / stage III .63, 3" exhaust, eec-tuner, 55pph injectors,
Best 1/4 mile: 13.64 (with 2.19 60' time) @ 102.91mph And that was on 93 octane

I put on a new elbow, checked for cracks used teflon tape and made it as tight as possible. After starting the car it was not leaking . As soon as I started to raise the RPM you would see the oil start to form around the bottom of the fitting on top of the turbo if there is a hole of crack in the metal line that I cannot see , would you happen to know the part # to replace it or a better way of fixing it

Just a guess but look for a hairline crack where the elbow fits into the turbo. Also teflon tape is probable not a good idea in this area. If a piece gets into the turbo it could plug up the oil passages. Teflon goop might be better and just use small quantities.

Thank you guys I will check the top of the housing again for any cracks I might have missed ,if it is not the housing and turns out to be the line is it very hard to fix anything I should know before fixing it

If it's the line you will have to replace it.
You could make a braided line, see: http://www.ptaaron.com/oil-line/

or buy one already made here: http://home.flash.net/~jewhelan/svo.htm
go to Products and scroll down Right below it is a repro stock feed line.

thank you Pete for that information that gives me a few ideas for fixing it instead of just trying to stop the leak .I will just replace it