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Join Date: Mar 2011
Posts: 246
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strange noise
Hello,
does anybody has an idea what this noise might be? https://youtu.be/0VqzSzGa8Ws You can her it clearly in the Video and it comes from where I put my fingers on. many thanks in advance, Malte |
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10-06-2016, 07:20 AM
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Work in Progress
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Your video is set to private so I was unable to see or hear it.
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"The reason most people give up is because they look at how far they have to go, not how far they have come." -Bruce Anderson via FB -Marine Blue '87 930 |
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10-06-2016, 07:45 AM
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Oh sorry! It should work now.
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10-06-2016, 08:02 AM
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Banned
Join Date: Sep 2016
Posts: 7
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problem in ignition.. or electric supply is not proper
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10-06-2016, 08:13 AM
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Registered
Join Date: Jul 2008
Location: Central Washington State
Posts: 3,893
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you're pointing to your boost recirculation valve housing, if that's the clunky noise you're referring to. Never heard of a recirc valve clunking at idle, though somewhat common when goosing the throttle at idle if the gaskets at the end caps are worn and the internal piston contacts metal instead of the gaskets.
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Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification. |
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10-06-2016, 07:21 PM
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Thank you guys. What I did to make this noise better to here is that I turned the dizzy 5 degrees to the left and right while filming. This i sthe reason for the up and down of rpmīs. Everytime the rpms change the noise apears. I will check the gaskets!
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10-07-2016, 01:03 AM
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I just found out that here is no vacuum at the wastegate
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10-07-2016, 08:25 AM
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Mighty Meatlocker Turbo
Join Date: Apr 2016
Location: North TexASS
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Quote:
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10-07-2016, 10:07 AM
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Join Date: Mar 2011
Posts: 246
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Thanks, I have an original Porsche workshop manual and it says at idel there is a vaccum which turns into boost pressure with rising rpm.
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10-07-2016, 11:11 AM
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Bruiser
