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TDI Maintenance Archives on TDI Maintenance related items.

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Old November 7th, 2000, 17:34   #16
Karl Roenick
Veteran Member
 
Join Date: Sep 1999
Location: Clifton Park, NY, US
Default Re: WasteGate cleaning and maintenance

I was thinking that if the request/actual deviation only became apparent as the boost went up, it would more likely be a hose or duct failure that would only come apart as the pressure elevated some.
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Old November 7th, 2000, 17:44   #17
valois
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Join Date: Jan 2000
Default Re: WasteGate cleaning and maintenance

That makes sense, it could also indicate lack of travel on the actuator, due to weakining of the diaphram or obstruction of the gate itself, in this case I observed 40mbar difference at idle, it became progressively worse as boost was increased. I have to say the vag com is one grat troubleshooting aid.
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Old November 7th, 2000, 17:54   #18
Karl Roenick
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Join Date: Sep 1999
Location: Clifton Park, NY, US
Default Re: WasteGate cleaning and maintenance

quick question, valois: what was the stuff in the air duct like? a gooey coating, oily? Did it actually have much thickness?
ps: i tried asking this question by email, but I'm not sure what your address is anymore. Is it the one in your profile?
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Old November 7th, 2000, 18:42   #19
valois
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Join Date: Jan 2000
Default Re: WasteGate cleaning and maintenance

Karl, it's the same email on the profile, it's strange, several have stated they are having problems, but, I am recieving emails from others. Red got the WSV replaced today and it fixed the problem, He may come Saturday and I'll take some pictures, it was what a oil drain pan would look like after being drained and left out for some dust to accumulate and get sticky. you would be able to wipe it off with a rag, but would have to use some pressure and several swipes to get it. I hope this is descriptive enough, it would certainly play hell with a small orifice and restrict a small valve body, as is evident by the problems people are experiencing. I am hoping to get Red's old N75 for a little research and we will see if it can be restored to proper operation.
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Old November 7th, 2000, 18:52   #20
GoFaster
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Join Date: Jun 1999
Location: Brampton, Ontario, Canada
Default Re: WasteGate cleaning and maintenance

This one is going in the archives, thanks everyone!

Brian
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