i believe i am having problems with my turbonetics delta wastegate ... i think it is flapping around ... it makes an odd flapping noise when the rpms hit around 2-3000. sometimes the turbo spools up and sometimes it doesnt and when it does it builds very little boost (around 2-3psi) and it always makes this noise. how do i fix this? anybody else had this problem before? thanks guys and please help me out. any suggestions out there?

I've had an internal wastegate make "flapping" noises before if there wasn;t enough tension... but not sure about an external wastegate.

I'd be more suspicious of the way the vaccum lines are hooked up to the wastegate...

Have you checked for boost leaks?

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Megasquirt powered 420A
Custom turbo system

http://www.ms-custom.com

um i dont think there is any vacuum lines that go to the delta wastegate ... just a line from teh side of it marked 'boost' to the side of the turbo charger. no i did not do any boost leaks, i dont know how to check or build the tester, i did many searches for it but never found anything! PLEASE HELP!

dude...i have told you 1,000,000 times that you have a leak..thats what it is..the ONLY way the deltagate is gonna flap is if by some miracle the spring inside broke...take it off and try and push it with your hand..its gonna take some force to get it to move...you HAVE A BOOST LEAK...period.

'99 RS
gone, never forgotten

'03 BMW 330i 5speed

'00 Jeep Grand Cherokee Limited 4.7

ok but how do i make a boost leak tester ... i have searched on google and 2gnt and have found nothing. any websites or anything have one on there or something? thanks guys and please continue to help me out please!

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Megasquirt powered 420A
Custom turbo system

http://www.ms-custom.com

ok do you think this would work ... get the same size of the turbo piping with the air filter on it in some PVC pipe with one end open and the other closed. get a cheap bicycle tube from like kmart and cut off the air valve, drill a hole in the end of the pvc pipe, put the tire valve through the inside and face it out, seal around the valve with some gasket silicone or hot glue and then clamp the coupling down to teh side of turbo and feed in 10-15psi through an air compressor? i think that would work...do you guys? also, should i do this with the car running at a idle? and do you think this will make the noise that i am hearing when driving if this is a boost leak? even though the stock internals can only hold like 8psi, with the car running, is it going to be safe putting 10-15psi of air through the turbo? it wont mess up my motor will it at all? i will spray some soapy water around the whole wastegate, turbo, BOV, and intercooler couplings and see if i get any bubbles but do you think this will mess up the motor since im putting alot of air through it or am i imagining the worst? thanks guys, youve been an excellant help with this and i will try it tomrrow after work after i hear back from you guys! mike

Lol, if you seal up the turbo inlet how is the car going to run? engines need air to run. I think you should sell the turbo kit and take it to a mechanic for service. The boost leak tester seems to be above your level of mechanical expertise.

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Built. That's All...
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www.monkeybuttpirate.com
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2 Fingers of Scotch with a milk back... Stat!

Ummm... you would d it with the car off!!!

Your just checking for leaks... thats why you generate a pressure in the air intake system.... to check for leaks!!!

Oh boy...

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Megasquirt powered 420A
Custom turbo system

http://www.ms-custom.com

Like i said in my other post, gimme your turbo kit.

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Megasquirt powered 420A
Custom turbo system

http://www.ms-custom.com

so then if i dont pump air into the turbo inlet 'like the other article said to' ... where do i put the pvc pipe to pump the air for a boost leak? thanks guys, you are helping me out a ton!

Put it somewhere in the intercooler piping... take a section out... and put in your PVC setup... Or a good place would be the BOV flange... mount it there.

Just remember to seal off the turbo inlet of air will leak out there...

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Megasquirt powered 420A
Custom turbo system

http://www.ms-custom.com

oh..huh...i was going to say maybe his BOV just isnt closing up all the way...

Klein567 - Ya i heard about that ticket you and Sean got.
Clint485 - Stupid chick cop...worst part was she looked like a dude.
Klein567- Thats becuase all hot cops are strippers

hey guys i made the boost leak tester and i THINK i may have found the leak ... when i replaced the intake manifold with a port/polished one, when i took off the PCV valve, it broke in the hose and i got a new PCV valve and had to get a little bit bigger hose for it and when i pumped air into the side of the turbo, air was coming out of the PCV hose ... do you guys think this would be possible for the boost leak to be coming from this hose from the intake manifold? thanks and please reply asap! thanks for all your help and i HOPE this is where i was leaking boost if possible! PLEASE REPLY! mike

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Megasquirt powered 420A
Custom turbo system

http://www.ms-custom.com

okay well i finally drove around the block and now it doesnt make the flap noise liek it did before, but it still isnt building boost and i cant hear the BOV anymore as i could barely before. i had tightened up the screw on the top of the blitz BOV before i drove ... do you guys think that since i tightened it up that tahts why it isnt working/boosting? thanks guys, please reply - mike

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Built. That's All...
.........................................................................................................................
www.monkeybuttpirate.com
.........................................................................................................................
2 Fingers of Scotch with a milk back... Stat!

um all that link did was bring me to the main forum page ...whats that link for djtrickee? hey guys, do you think that since i tightened up the bov spring that its not opening and that why im not spooling now and i dont hear the bov? thanks guys and please help again!

welp i think i know why after i fixed the leak why im still not boosting ... i think the turbo is shot ... i have some scratches on the inside part of the intake side of the turbo where the spool is ... the weird thing is that it spools sometimes and sometimes it doesnt ... but when i turn the car off, after the turbo timer shuts off, you can hear what i belive to be the bearings rolling around or something ... ill have to take it off thursday and see whats up. how do i check to know if the turbo is blown or not? just by shaking it and hearing bearings rolling around ... also, what could cause the turbo be blow out like this if it did? no oil getting to it ot what, i dont understand? if it is blown, its going back to turbonetics becase its done this since day and i know everyone was hooked up right .... PLLLLLLLEEEEEEASE HELP!

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Megasquirt powered 420A
Custom turbo system

http://www.ms-custom.com

his turbo is blown..he showed me pics...the wheels have rubbed the housing enough to bend both compressor and turbine wheels..

'99 RS
gone, never forgotten

'03 BMW 330i 5speed

'00 Jeep Grand Cherokee Limited 4.7

FS: 2.5" Test Pipe 25 shipped

well what exactly would cause the turbo to blow like this? i can move the compressor kinda much, like back n forth a little bit. anyway, what would cause this? no oil or something? i have only had the turbo on the car for like 2 weeks of driving and it was making noises from day 1. i will send it back to turbonetics if i can if something was wrong with it since i swear everything was hooked up correctly if just maybe it wasnt getting enough oil. anyway guys, whats some cases of which would blow out a turbo? thanks a ton - mike

ok guys i took off the turbo today and took off the oil return adapter that the oil return hose goes on and inside the turbo you can see some oil so i belive that the turbo was getting oil. im not for sure if the turbo is blown because usually if its blown you can shake the turbo and hear the bearings rolling around in it if it was blown and i cant hear anything inside. the turbine side had some scratches around the turbine from what i dont know but it doesnt seem like there is a TON of shaft play so im not so certain if its blown. can anyone tell me what they think i should do or how to check to make sure its blown for sure before i send it back to turbonetics and wait 2 months for another one. how do you check to see if its done? like i said, you cant hear any bearings rolling around in side of it. is there anything else that would casue the turbo to only spool sometimes and not build boost besides a boost leak? thnaks and please get back to me asap! if anyone wants to see a pic of the turbine/compressor, please drop you email address in here and ill send it to see what you think! thanks alot!

damn dude now your starting to piss me off...NO YOU CANNOT HEAR THE BEARINGS RATTLING AROUND INSIDE OF A BLOWN TURBO...unless by some insane amount of destruction you managed to shatter a bearing..which you DID NOT DO. FOR THE LAST DAMN TIME YOUr TURBO IS IS BLOWN. there are not just "some scratches" the walls of the compressor housing and turbine housing have deep pits in them. ALSO, all of the blades on BOTH the turbine and compressor wheels are bent, they are NO GOOD. send the freaking thing back to turbonetics and STOP WASTING board usage when i blatantly tell you what is wrong.

'99 RS
gone, never forgotten

'03 BMW 330i 5speed

'00 Jeep Grand Cherokee Limited 4.7

ok well can anyone send me a picture of what the blades SHOULD look like on a used turbo? i would like to just compare please. please help! thanks again my email is eclipse982nr@aol.com if someone can send me an email of a pic of a used turbo of what it should look like if its in decent condition. or just drop a link in the forum here. thanks again.