GReddy Turbo Problem
11-07-2005, 09:57 PM
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GReddy Turbo Problem
As some of you may have heard, I'm having problems with my turbo install. There are two main problems: 1) When car is about to hit boost, or reach zero on the boost gauge, the car will stutter and stall out, and 2) There is oil leaking around the turbo (not from the return or supply lines). I was hoping to start this thread, and ask for some ideas as to what my two problems could possibly be, and if one could possibly be related to the other.
Just to give some more background, when I first installed it, I noticed that there was an oil leak from both the return and supply lines, then I thought to myself, "duh, I forgot to put the teflon tape on!". So after I did that, and finally got everything back on and together, I cranked her up, and there was a steady stream of oil dripping out. Could something have possibly come loose within the turbo?
Any help, or ideas you all could provide, I'd much appreciate. Thanks!
Just to give some more background, when I first installed it, I noticed that there was an oil leak from both the return and supply lines, then I thought to myself, "duh, I forgot to put the teflon tape on!". So after I did that, and finally got everything back on and together, I cranked her up, and there was a steady stream of oil dripping out. Could something have possibly come loose within the turbo?
Any help, or ideas you all could provide, I'd much appreciate. Thanks!
11-07-2005, 10:07 PM
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My stutter & stall problem was due to funky vacuum hose routing.
The 'R' flash doesn't help either.
As far as the oil leak goes, I would suggest taking off the lines & reinstalling them with some kind of sealant.
The 'R' flash doesn't help either.
As far as the oil leak goes, I would suggest taking off the lines & reinstalling them with some kind of sealant.
11-08-2005, 10:19 AM
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Ok, I think I may have figured out one of the problems. I was reading through some notes I had taken, and I think Adrian(?) had mentioned that you are supposed to take the plastic plug off the boost control solenoid labeled "NC". I'm pretty sure I did not do that, so maybe thats why I can't boost. As far as the oil leak, I'll have to tripple check everything. Any more ideas?
11-08-2005, 10:37 AM
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I would recommend disconnecting the boost controller all together until you get the turbo itself running right. Once you are confident everything is okay, then put the boost controller in.
11-08-2005, 10:45 AM
#6
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Yeah, if taking that plug out doesn't fix your boost problem, take out the boost controller for now.
Also, you said both the return and supply connections are leaking? It sounds like you may have overtightened it and cracked the housing (since you said steady stream) . You'll have to get a good look at the ends it's leaking at to be sure, that means draining the oil and possibly taking the turbo out.
Also, you said both the return and supply connections are leaking? It sounds like you may have overtightened it and cracked the housing (since you said steady stream) . You'll have to get a good look at the ends it's leaking at to be sure, that means draining the oil and possibly taking the turbo out.
11-08-2005, 11:38 AM
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2-3 times (?). Should I maybe do more than that? It didn't seem like it was coming from that area, but I'm going to have another look tonight.
11-08-2005, 10:13 PM
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Well I checked all the vacuum hoses, and they seemed to be ok. Then I tried disconnecting the extra plastic tab on the boost control solenoid, but had the same problem when it would try to boost. Tried routing a hose just from the nipple to the actuator...same problem. So I'm really not sure what to do with that. Could something be wrong with the actuator? Like it is not opening up the turbo to create boost?
For the oil leak, I'll try disconnecting the supply line again, and reapply the teflon tape, and make sure to wrap it 4 times or so. If it still leaks, then I just gotta say the turbo is f*cked.
For the oil leak, I'll try disconnecting the supply line again, and reapply the teflon tape, and make sure to wrap it 4 times or so. If it still leaks, then I just gotta say the turbo is f*cked.
11-09-2005, 01:51 PM
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Originally Posted by Moostafa29
Well I checked all the vacuum hoses, and they seemed to be ok. Then I tried disconnecting the extra plastic tab on the boost control solenoid, but had the same problem when it would try to boost. Tried routing a hose just from the nipple to the actuator...same problem. So I'm really not sure what to do with that. Could something be wrong with the actuator? Like it is not opening up the turbo to create boost?
For the oil leak, I'll try disconnecting the supply line again, and reapply the teflon tape, and make sure to wrap it 4 times or so. If it still leaks, then I just gotta say the turbo is f*cked.
For the oil leak, I'll try disconnecting the supply line again, and reapply the teflon tape, and make sure to wrap it 4 times or so. If it still leaks, then I just gotta say the turbo is f*cked.
The actuator opens to limit boost. If it didn't have a signal line connected, you would overboost.
Do you have a leaking BOV? Also, do you have an AFR gage? You are running the Interceptor, right?
with regards to the oil lieak: The first place I would look is that damn drain pipe. Its so hard to get that thing tight
MD
11-09-2005, 10:56 PM
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Originally Posted by MadDog
The actuator opens to limit boost. If it didn't have a signal line connected, you would overboost.
Do you have a leaking BOV? Also, do you have an AFR gage? You are running the Interceptor, right?
with regards to the oil lieak: The first place I would look is that damn drain pipe. Its so hard to get that thing tight
MD
Do you have a leaking BOV? Also, do you have an AFR gage? You are running the Interceptor, right?
with regards to the oil lieak: The first place I would look is that damn drain pipe. Its so hard to get that thing tight
MD
I know there is nut and bolt on the left side of the turbo, on the same side as the engine. If that nut somehow came loose, what effect would that have on the turbo. I have no clue, but at this point I'm throwing out any kind of ideas I can think of.
11-10-2005, 08:48 AM
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If your BOV was leaking under boost, you could be running VERY rich - causing misfires and hesitation. This would depend on where the pressure gage is relative to the BOV - before or after.
Are you talking about the nut and bolt holding the housing clamp together? I guess that would cause a leak if the clamp were loose. Did you check the drain pipe and gasket?
Are you talking about the nut and bolt holding the housing clamp together? I guess that would cause a leak if the clamp were loose. Did you check the drain pipe and gasket?
11-10-2005, 09:02 AM
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Originally Posted by MadDog
If your BOV was leaking under boost, you could be running VERY rich - causing misfires and hesitation. This would depend on where the pressure gage is relative to the BOV - before or after.
Originally Posted by MadDog
Are you talking about the nut and bolt holding the housing clamp together? I guess that would cause a leak if the clamp were loose. Did you check the drain pipe and gasket?
Thanks!
11-10-2005, 09:12 AM
#15
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Downpipe
Oil drain (return line)
Is the shiny line connected to the black hose going into the oil pan. There should be a gasket between the turbo and this drain line.
Oil drain (return line)
Is the shiny line connected to the black hose going into the oil pan. There should be a gasket between the turbo and this drain line.
11-10-2005, 09:27 AM
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Originally Posted by adrian-1
Downpipe
Oil drain (return line)
Is the shiny line connected to the black hose going into the oil pan. There should be a gasket between the turbo and this drain line.
Oil drain (return line)
Is the shiny line connected to the black hose going into the oil pan. There should be a gasket between the turbo and this drain line.
11-10-2005, 09:44 AM
#17
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That is definitely a problem. Metal to metal without that gasket will leak.
The gasket part number on the parts list is 48 and is blue. Call up greddy, I doubt you'll find it in a hardware store.
The gasket part number on the parts list is 48 and is blue. Call up greddy, I doubt you'll find it in a hardware store.
11-10-2005, 10:19 AM
#19
Ex- member.
Yes, it's in step 3-3-2 where it says to install it.
My kit was missing 3 nuts for the turbo and I got them at home depot. Another member was missing one of the intercooler pipes.
My kit was missing 3 nuts for the turbo and I got them at home depot. Another member was missing one of the intercooler pipes.
11-10-2005, 10:20 AM
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Originally Posted by Moostafa29
Thanks Adrian. I thought that was weird. Just to make sure, thats where the oval shape piece with the two bolts, meets the turbo correct?
Hell yeah! I think we found your leak!!
You can order one, or you can get some gasket material from a parts store. There are at least two options: 1) gasket-in-a-tube: like caulk that forms a gasket. 2) they sell a sheet of gasket material that you cut yourself. This is what I did.
11-10-2005, 10:55 AM
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Originally Posted by MadDog
Hell yeah! I think we found your leak!!
You can order one, or you can get some gasket material from a parts store. There are at least two options: 1) gasket-in-a-tube: like caulk that forms a gasket. 2) they sell a sheet of gasket material that you cut yourself. This is what I did.
You can order one, or you can get some gasket material from a parts store. There are at least two options: 1) gasket-in-a-tube: like caulk that forms a gasket. 2) they sell a sheet of gasket material that you cut yourself. This is what I did.
Originally Posted by adrian-1
Now we just need to get the boost issue fixed. 
11-10-2005, 12:01 PM
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on to the boost issue then. Since you didn't recieve one gasket, how abou these: there is also a gasket that should go between the turbo housing and the intake and return pipes. If those aren't installed, you could be loosing pressure there.
11-10-2005, 12:21 PM
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Those I do have. The gaskets that I can recall having are those two, one for the air pump hose that goes to the downpipe adapter, and one on the turbo that sits between the turbo and downpipe adapter.