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What is this leaky part between Bank 2 and AOS?

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4 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

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YOUR RESEARCHWhat is this leaky part between Bank 2 and AOS?

Leading reported evidence

Replace o-rings

Suggestion or failed attempt

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Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion
You�ll need to replace all O-rings and check that valve holds some rubbing alcohol when inverted.
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What is this leaky part between Bank 2 and AOS?

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Leading evidence: 'Replace o-rings' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace o-rings' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Replace with uaos)

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion · Original poster
It�s got 3 ends - one end looks like an �X� grill perhaps a vent, one end goes into the head, the other end goes into a hard pipe that goes to the AOS (which I plan on replacing with UAOS)
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What is this leaky part between Bank 2 and AOS?

Frequently discussed actions (2)

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Replace o-rings

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
You�ll need to replace all O-rings and check that valve holds some rubbing alcohol when inverted.
Original post Read captured discussion
What is this leaky part between Bank 2 and AOS?

Replace with uaos)

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster
It�s got 3 ends - one end looks like an �X� grill perhaps a vent, one end goes into the head, the other end goes into a hard pipe that goes to the AOS (which I plan on replacing with UAOS)
Original post Read captured discussion
What is this leaky part between Bank 2 and AOS?

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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

4 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Rennlist: 1 discussions

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Generation: 20261026T130754Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi all, In the middle of an engine-out refresh of parts. I�m trying to find a name for this part that I found leaking. It is connected to the Bank 2 head, at the top rear (above Cyl 4). It�s got 3 ends - one end looks like an �X� grill perhaps a vent, one end goes into the head, the other end goes into a hard pipe that goes to the AOS (which I plan on replacing with UAOS) Is it a common leak point? What all do I replace that is associated with it other than the AOS?

POST 2Original post

That�s a safety valve for crankcase ventilation. You�ll need to replace all O-rings and check that valve holds some rubbing alcohol when inverted. If valve drips get a replacement.

POST 3 / ORIGINAL POSTEROriginal post

Where might these O rings be? I can�t find much info about this part.

POST 4Original post

Quotes source post: 18414524

i believe the part you are looking at is 6 in the diagram, and 7 is the O ring. not very expensive part, so you might consider replacing it.

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