Dysfnctnl85

[quote name='kahren' date='Jul 19 2005, 12:15 AM']if you have no idea where the tb opening should be make it large so its open aroudn 1-2 mm and then try to make it idle high with that and work your way down slwoly adjust it smaller and if you see it not runign smoothly play with teh fuel and timing some untill it does, then go lower untill u get to idle aroudn 1k rpm assumign the port is something normal.


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Sounds like a plan, thanks a lot. I will put this to the test this weekend when I'm back home.

Dysfnctnl85

Okay guys, the hour I was able to spend with the car this weekend yielded some intersting findings.



1) The car starts fine when the injectors are off.

2) The car then dies after about 20 seconds, presumably from having no fuel, yet I can give the car gas and have it rev for a second or two after condition 1 yields a start.



So, WTF? I mean, the TB screw is not at fault here...but I'm not sure what the deal is. I turn the injectors on, crank it, I get nothing, not even a SPUTTER. Turn them off, it starts right up, most of the time. I smell an enormous amount of fuel, so I tried leaning it out, to 50% of what the injection timing was for the 3 load values the motor hits when cranking.



Another problem is I'm afraid to hookup the wideband as it's still spewing quite a bit of oil. I'm sure this would be able to tell you guys (and me) a little bit more about what's going on, but I'm really afraid that's going to mess up the sensor. If I'm wrong let me know and I'll hook it right up .



One thing I didn't try was seeing what the load on the motor was while it was idling. But again, I smell a hellacious amount of fuel. I don't feel comfortable at all with modifying all of Fuel Map 1 and lowering the injection timing because I'm sure they are at least good enough for the motor to run without fault.

grease

You seriously need to correct the oil problem. Assuming that the oil is coming from the turbo, and not the engine itself, you either have bad seals in the turbo (read as probable rebuild needed) or too much oil pressure (install a restrictor) into the turbo. In any case, all of the oil dripping out of the downpipe is not getting back into the oilpan where it belongs, and will cause you some major problems if it is not fixed. If allowed to continue, you will also end up with oil collecting in your pre-silencers and/or muffler which will take forever to burn off.

Dysfnctnl85

[quote name='grease' date='Jul 26 2005, 09:29 AM']You seriously need to correct the oil problem. Assuming that the oil is coming from the turbo, and not the engine itself, you either have bad seals in the turbo (read as probable rebuild needed) or too much oil pressure (install a restrictor) into the turbo. In any case, all of the oil dripping out of the downpipe is not getting back into the oilpan where it belongs, and will cause you some major problems if it is not fixed. If allowed to continue, you will also end up with oil collecting in your pre-silencers and/or muffler which will take forever to burn off.


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I have a restrictor installed properly. All I have for exhaust right now is a downpipe, so the oil isn't gathering anywhere but on my floor.



What I need to know is how to determine what the problem is, seeing as how the turbo is brand new. I don't see how I could have blown the oil seals...

grease

Remove the turbo, (preferably the turbo exhaust manifold also) block or remove and block the turbo oil feed oil line, install stock exhaust manifold and try running it to see if the problem persists. If so, the problem is internal to the engine, not the turbo. If the problem goes away, you've got a turbo problem, new or not and need to have the unit checked.

Dysfnctnl85

[quote name='grease' date='Jul 26 2005, 09:50 AM']Remove the turbo, (preferably the turbo exhaust manifold also) block or remove and block the turbo oil feed oil line, install stock exhaust manifold and try running it to see if the problem persists. If so, the problem is internal to the engine, not the turbo. If the problem goes away, you've got a turbo problem, new or not and need to have the unit checked.


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Since I have no other manifold, is it safe to just remove the turbo and see if any oil comes out?

grease

I doubt that it would hurt anything to remove the turbo and check for oil coming out of the exhaust ports, but I wouldn't run it like that for mort than a couple of minutes just to be safe. On another note, what size od oil return line are you using? If the line is too small ( less than 1/2" ID, or at least -8, with -10 or -12 preferred), or if the return line is higher in the engine than the turbo drain outlet, it will cause oil to back up in the turbo and bypass the seals. Some turbo manifolds mount the turbo so

grease

Some manifolds mount the turbo so low that you cannot use the front cover location to drain the turbo. I had the same problem with a 12a with Cartech turbo manifold, and had to plug the front cover drain hole and drain the turbo direct to the oil pan. Make the drain hole in the oilpan as high as possible directly above the oilpan stock drain plug but still lower that the turbo's drain outlet if you do this.

Dysfnctnl85

[quote name='grease' date='Jul 27 2005, 10:52 AM']I doubt that it would hurt anything to remove the turbo and check for oil coming out of the exhaust ports, but I wouldn't run it like that for mort than a couple of minutes just to be safe. On another note, what size od oil return line are you using? If the line is too small ( less than 1/2" ID, or at least -8, with -10 or -12 preferred), or if the return line is higher in the engine than the turbo drain outlet, it will cause oil to back up in the turbo and bypass the seals. Some turbo manifolds mount the turbo so


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The oil return is -10 AN.



[quote name='grease' date='Jul 27 2005, 10:57 AM']Some manifolds mount the turbo so low that you cannot use the front cover location to drain the turbo. I had the same problem with a 12a with Cartech turbo manifold, and had to plug the front cover drain hole and drain the turbo direct to the oil pan. Make the drain hole in the oilpan as high as possible directly above the oilpan stock drain plug but still lower that the turbo's drain outlet if you do this.


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Hmm, I hadn't really thought about this. I guess now I have two tests to run:



1) Disconnect the oil return line and drain it to a pan or something and see if I still have oil coming out of my exhaust.

2) If the test above shows that the oil is just not draining properly, then I'm done...otherwise take the turbo off the manifold and check for oil.



Does that make sense?



Thanks a ton for the help. I expected more people to chime in, but that's okay, I'll take what I can get.

Dysfnctnl85

Alright my dad and I performed a few tests today so I think we've figured out what the problem is.



First I checked the oil return line by disconnected the end that hooks to the front cover, just to make sure oil was draining and that the amount wasn't too much for the line size. Sure enough, everything's fine in that dept. So then we take the exhaust manifold off and turn the motor over a few times, holding rags up against the exhaust ports. The rags were stained black, but we were still skeptical. At this point we used some paper against the exhaust ports...the amount of oil that came out under cranking was so much it dripped all over the place.



Needless to say, I think the oil seals are bad. Maybe I'm wrong?



I'm calling Kickyride and seeing when Mike would be able to replace them and possibly put in some different exhaust ports .