aLmk's Turbo FA5

[aLmk]

Well finished putting everything back together, and it still creeps :sadbanana: I guess at this point, when I have time again I will take the gate off and take it to someone that has a nice compressor with a good pressure regulator and test the gate more thoroughly for leaks by putting it in water, although I really don't think its leaking. I used teflon tape on all my NPT threads and everything is nice and tight, I really don't know what the fuck is wrong.

[monjarassi]

Well finished putting everything back together, and it still creeps :sadbanana: I guess at this point, when I have time again I will take the gate off and take it to someone that has a nice compressor with a good pressure regulator and test the gate more thoroughly for leaks by putting it in water, although I really don't think its leaking. I used teflon tape on all my NPT threads and everything is nice and tight, I really don't know what the fuck is wrong.

dam that sucks to hear man, it might all be in the tune!!! u need to have your stuff looked over by a prof

[aLmk]

Ya it's not in the tune. Same person is tuning me that tuned this setup for the previous owner and he didn't have problems. Something must be wrong with the wastegate.

[aLmk]

I just took my wastegate with fittings and solenoid with fittings up to positive performance. He is going to pressure test the whole setup for leaks with a very accurate leak down tester he just didn't have it there today because its in his race car trailer, so he'll be testing it for me tomorrow. Hopefully he finds a leak and we can fix it. If there's no leak I'm not sure where to go from there.

[Si Speed 317]

I just took my wastegate with fittings and solenoid with fittings up to positive performance. He is going to pressure test the whole setup for leaks with a very accurate leak down tester he just didn't have it there today because its in his race car trailer, so he'll be testing it for me tomorrow. Hopefully he finds a leak and we can fix it. If there's no leak I'm not sure where to go from there.

Damn, I'm currently stumped. Not sure what it could be. [MENTION=789]VitViper[/MENTION] have any ideas? Keep us updated aLmk

[aLmk]

I'm hoping there is some bs leak somewhere. Like maybe the wastegate isn't sealed or a fitting is leaking where it threads in. Vit is convinced it's not be manifold design because previous owner has nonissues and he hasn't seen one creep that bad.

[aLmk]

I just got off the phone with Bill, he said the wastegate is leaking where the two halves bolt together thank god! At least we have located the problem. Not sure why it is leaking there, perhaps I installed the diaphragm incorrectly, but he says that's doubtful as it is easy to do and says it looks like I did it right as all bolts are tight and the diaphragm isn't pinched or sticking out, and I had the exact problem with the first diaphragm and that was factory installed. Perhaps the wastegate seal has just gone bad or the flange is no longer perfectly sealing. So I guess at this point I am going to get a new wastegate, but I am going to try to contact Tial first and see what they say.

[Si Speed 317]

Thats great! Hopefully Tial will help you out. My only thought is that it could've warped from heat cycles and lots of back to back runs.

[aLmk]

I have already bought a new one. I honestly can't afford the downtime any longer on the vehicle. If I had another car I totally would try to fix it, but I need this running, and I don't have the time to keep taking my wastegate on and off the car. I contacted tial and all they asked for was the serial number on top of the wastegate and they said I can send it to them and they will inspect/test it and decide what to do from there. I am hoping that they will repair or replace it once they test it and find it faulty, but they may not because they may realize someone put 1/8 NPT fittings in it when it isn't designed for that, and that could be the reason it failed as it was leaking right where the fittings go in, not from the fittings, but nonetheless right where they were. If they repair or replace it I will sell it to try to recoup some of my loss.

Here are some pics and a quesiton:

These are the fittings I got so I can use my nice 4AN lines:

My question/problem ATM is that the fittings are slightly longer than the banjo fittings that come from tial. The top one fits just fine because there is more room and I made sure it would not hit the diaphragm at all, and it won't. The bottom fittings are a little different, after the threaded portion it appears the diameter of the hole gets slightly smaller so I cannot thread my fitting in far enough to get a seal (it still doesn't hit the diaphragm as there is plenty of room length wise), so I was going to just use a few washers to fix this problem. I just want to make sure that is OK and that it will still seal? And if so, since the washers are slightly different sizes which order should I place the washers onto the fittings? I have pictures below to show what I mean.
This way?

This way?

Or this way?

The top fittings looks like this:

Thanks!

[Si Speed 317]

Nice, best of luck with Tial. I would say big washer first, then the smaller ones. Doesn't really matter. What does matter is that it doeant leak, the washers won't help with that. You need a thread sealant, something that wont diminish when the gate gets super hot. Gasoila is good, I used it for my fuel/oil lines but it doesn't lock like the blue or red sealant (I forget the name of those, threadlock?). So, I would use a good sealant. Teflon may work, but you're gonna have to load it up because of the taper on the gate threads. Thats why I suggested a liquid, it'll make a nice seal. Just make one straight bead around a thread or two, or use a liquid teflon and go over a lot of threads. Let me know what you come up with