CBV Replacement
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CBV Replacement
Photos and a write-up for replacing the compressor bypass valve diaphragm and spring. Something I recently did as I took things apart to check my turbo for boost problems. Like I mention in the write-up, I am not sure how often the CBV diaphragm or spring goes bad (Tech???) and I don't know if it's necessary to replace them as preventive type maintenance but if you plan on doing this job I hope this helps out.
http://www.box.net/shared/zdjf64r3k3
http://www.box.net/shared/zdjf64r3k3
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Joined: Sep 2009
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From: Birmingham,UK
A method for bypassing excessively compressed intake air in a turbo-charged engine system comprising determining, by a throttle valve position sensor that a throttle valve has been suddenly closed wherein said determining is performed by analyzing a value of time derivatives of an electric signal (voltage) generated from the throttle valve position sensor and bypassing excessively compressed intake air from an intake manifold to a air intake before said compressed intake air reaches a compressor of a turbo-charged engine system.
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From: Wadsworth, IL
A method for bypassing excessively compressed intake air in a turbo-charged engine system comprising determining, by a throttle valve position sensor that a throttle valve has been suddenly closed wherein said determining is performed by analyzing a value of time derivatives of an electric signal (voltage) generated from the throttle valve position sensor and bypassing excessively compressed intake air from an intake manifold to a air intake before said compressed intake air reaches a compressor of a turbo-charged engine system.
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Photos and a write-up for replacing the compressor bypass valve diaphragm and spring. Something I recently did as I took things apart to check my turbo for boost problems. Like I mention in the write-up, I am not sure how often the CBV diaphragm or spring goes bad (Tech???) and I don't know if it's necessary to replace them as preventive type maintenance but if you plan on doing this job I hope this helps out.
http://www.box.net/shared/zdjf64r3k3
http://www.box.net/shared/zdjf64r3k3
Last edited by kurtdaniel; Dec 14, 2009 at 08:12 PM.
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I found this sitting on my parts shelf and don't need it anymore. It is the Viva Performance "CBV upgrade kit" that I bought directly from Viva for my 850 but their website lists it should work on any turbo in the TD04 family. Please check your fitment before buying. It is new, never installed. Took it out of the box to look at it and that was it, went right back into the box.
Asking $45 shipped within the United States. I accept Paypal, please e-mail me with any questions, thanks.
Asking $45 shipped within the United States. I accept Paypal, please e-mail me with any questions, thanks.
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Joined: Mar 2012
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I have a similar question.... To install a bypass valve it's a turbo xs bypass valve do I just replace that stock cbv with it ? Does anything need to be blocked ? I just need some install guidance not sure if I'm on the right thread for this I just joined sorry if I'm not
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