Planet-9

987.1 IMS Flange Centre Bolt

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4 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH987.1 IMS Flange Centre Bolt

Leading reported evidence

Replace leaking seal, i'm trying

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

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
) and I'm replacing the leaking seal, I'm trying to find a definative spec for torque value for tightening the 22mm centre bolt.
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987.1 IMS Flange Centre Bolt

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Leading evidence: 'Replace leaking seal, i'm trying' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace leaking seal, i'm trying' (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.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

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1 matching discussions · 4 captured posts examined · 1 partial discussions

Compare 2 other evidence results

Tighten 22mm centre bolt

Suggestion or failed attempt

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
) and I'm replacing the leaking seal, I'm trying to find a definative spec for torque value for tightening the 22mm centre bolt.
Original post Read captured discussion
987.1 IMS Flange Centre Bolt

Use alternate sealant methods will throw off your torque value

Suggestion or failed attempt

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
Trying to use alternate sealant methods will throw off your torque value.
Original post Read captured discussion
987.1 IMS Flange Centre Bolt

Frequently discussed actions (3)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace leaking seal, i'm trying

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
) and I'm replacing the leaking seal, I'm trying to find a definative spec for torque value for tightening the 22mm centre bolt.
Original post Read captured discussion
987.1 IMS Flange Centre Bolt

Tighten 22mm centre bolt

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
) and I'm replacing the leaking seal, I'm trying to find a definative spec for torque value for tightening the 22mm centre bolt.
Original post Read captured discussion
987.1 IMS Flange Centre Bolt

Use alternate sealant methods will throw off your torque value

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
Trying to use alternate sealant methods will throw off your torque value.
Original post Read captured discussion
987.1 IMS Flange Centre Bolt

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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.

Planet-9: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Hi, Grateful for your insight on an old topic but would be super helpful for me. My car has the larger IMS bearing ( M97 engine ) and I'm replacing the leaking seal, I'm trying to find a definative spec for torque value for tightening the 22mm centre bolt. I've seen many different values outlined ranging from 10nm to 50nm - these were from both forums and direct contact with engine parts and rebuild companies. Thanks in advance for your insight on this, your help is appreciated!

POST 2Original post

Hey @mcatsh , I can see why you're asking for clarification—that's a massive range of torque specs for the IMS flange bolt on your M97! Have any of the rebuild companies you contacted been able to explain why their number differs so much from others? Adding a bit more context on what they said might help the experts here zero in on the right answer for you.

POST 3Original post

Hi, Thanks for the feedback on this. I haven't had any specific reasoning for the differences. Some of the info comes from various online sources, but the highest-value 50nm is from a very well-known and reputable Porsche engine-build company. The high value does concern me greatly, as this isn't something to get wrong with the risk of shearing the stub.

POST 4Original post

I am struggling to understand what 22 mm bolt you are talking about? Are you talking about item 17 on PET dwg 103-010? That is a M12 nut, not a bolt. I have attached a pdf of the shop manual instructions for that nut. The torque value is 9 ft-lb +/- 0.5 and it finicky to measure that low of a torque without the right tools. As shown in the attached pdf, you have to hold the IMS from turning with a screwdriver, which complicates torque measurement greatly. You should also be installing a new, out of the Porsche bag nut, with the pre-applied blue sealant. Trying to use alternate sealant methods will throw off your torque value. I have attached 2 pdfs.

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