What's the Circular gunk behind the ACV?
Thread Starter
Joined: Jun 2002
Posts: 4,403
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From: Avondale, Arizona
What's the Circular gunk behind the ACV?
I have my LIM off for polishing and I took the ACV off.
There is a weird circular area with some black stuff with a spider web like shape in it.
It somewhat comes off when wiping your finger over it but seems like it's in there on purpose.
What is this stuff?It come stock or did I get gremlins?
There is a weird circular area with some black stuff with a spider web like shape in it.
It somewhat comes off when wiping your finger over it but seems like it's in there on purpose.
What is this stuff?It come stock or did I get gremlins?
Thread Starter
Joined: Jun 2002
Posts: 4,403
Likes: 4
From: Avondale, Arizona
oh is that the EGR?
It's the big thing on the top external side of the LIM.
It is a rectangular area with a slant on one side.
There is a circular black gunk filled area 1 in in diameter.
Then there are 2-3 small holes for Vac or something to the left of it.
Is this the ACV? It's an S5 manifold so I don't think it has an EGR.
It's the big thing on the top external side of the LIM.
It is a rectangular area with a slant on one side.
There is a circular black gunk filled area 1 in in diameter.
Then there are 2-3 small holes for Vac or something to the left of it.
Is this the ACV? It's an S5 manifold so I don't think it has an EGR.
I'm a boost creep...
Joined: Jan 2002
Posts: 15,608
Likes: 8
From: Auckland, New Zealand
That port is where the AVC feeds air into the exhaust ports. The black disc is a check-valve to stop exhaust gases being pushed back up through the ACV. It is nothing to do with the EGR valve. The gunk is just exhaust residue like Ted said.
Locust of the apocalypse
Joined: Apr 2003
Posts: 2,553
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From: Directly above the center of the earth (York, PA)
Originally posted by NZConvertible
That port is where the AVC feeds air into the exhaust ports. The black disc is a check-valve to stop exhaust gases being pushed back up through the ACV. It is nothing to do with the EGR valve. The gunk is just exhaust residue like Ted said.
That port is where the AVC feeds air into the exhaust ports. The black disc is a check-valve to stop exhaust gases being pushed back up through the ACV. It is nothing to do with the EGR valve. The gunk is just exhaust residue like Ted said.
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