+1

Would like to know what the procedure was....

 

It ould have to flat out have a hole melted in one piston to make that much smoke and oil. leakdown testes can sure read funny. My favorite trick and easier than a leakdown is to simply unhook the coil wire and crank it. You can hear a dead hole as the starter cranks the motor over since it wont sound nice and even. When the bad hole comes up to bat, the starter gains RPM. Its a great test at the racetrack to see if the last run killed the motor if you suspect problems. Its possible it has so much blowby that its affecting drainback out of the turbo.

Probably best to tear it all down and see what you find and start from scratch since the buildup is unknown.

 

^^
fast crank comment is great advice
walk around the pits and listern to engines that do this

 

turbine shaft seal ( exhaust end) m is more for kepping the exhaust gas OUT

points to check on oil leaking into exhaust
- crank case ventalation....too much crank pressure can cause leaks
- turbo shaft out of balance
- gasket on drain flange blocking return oil ?
- return drain hose has 'pressure'' restricting oil drain . eg .. lined up with crank throw , and not main cap. oil flung off crank can restrict the return flow
-wrong seals / parts fitted to turbo on turbine shaft
-worn parts in turbo
- too small drain

 

leak down is sort of not as important as dynmaic compression test ( my eyes only, not as per internet huru's )
see / had fastest runs with more leak down before

like rings that had 'gone off / soft"
once boost / cylinder pressure gets behind rings it seals up ok.

valves leaking?
once running, the valve rotates , and can seal better

take info as a grain of salt...

 

turbonetics turbo should have a brass fitting in the top of the turbo oil inlet
it has a tiny screen in it...
is it still there?

 

I only run a leakdown test after I have a cylinder fail a compression test to tell me why the cylinder has no compression. I dont remember you saying so but with those leakdown results this motor should be running like shit.

 

Most boosted stangs that Ive seen have a few emissions coming out the breather at idle, unless it is alot of smoke I wouldnt be concerned. Have you tried doing a compression test? How much oil is coming out of the tailpipes and what does it look like?

 

6 cracked pistons, 2 have the valve reliefs that have chipped off, pistons look melted. First run of the part # on the piston shows a high-compression piston.

Seller lied about the pistons in the car as well. Will be getting the pan off by the end of the week, with all this doube there is a a sunny bryant crank in it.


If anyone wants to follow:

http://forums.corral.net/forums/mus...7-1993/1309307-fs-ft-turbo-auto-93-cobra.html

Seller has now taken down all descriptions off the car(probably because they were lies), google cache still has them all.

 

I read through it, bad deal man... Hate to hear it, the good thing that will come out of it is that you will know exactly what you have when you get it back together though...

 

Dam that sucks, hope the heads and block are alright.

 

Here is a pic of the fitting going into the turbo. Is there a reduced??

 

you have to take theoil feed hose off to see if there is a restrictor

 

You got fucked and are being way too nice about it on the corral.

 

sorry to hear about your problems, if i can help ya out with somethin let me know, sounds like its gunna take more than a turbo though

 

x2

 

I would be buying a round trip ticket and getting a piece of his ass and my money back even if i had to sue him for it but thats just me.