9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHPossible RMS and FMS Leak points
Leading reported evidence
Install dry
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Discussions that performed work without a confirmed outcome
1
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Performed · outcome unconfirmed
The new seals are PTFE ( Teflon) and are designed to be installed dry to function properly and to "break-in" correctly...
Leading evidence: 'Install dry' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean off any high points' (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.
Install dry and tight will leave a residual of ptfe
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Discussions that performed work without a confirmed outcome
1
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Performed · outcome unconfirmed
PTFE when installed dry and tight will leave a residual of PTFE on the crankshaft as its running surface to form a PTFE to PTFE very slick running seal....
Install ims bearing, also installed a rms crank seal due
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 performed work without a confirmed outcome
1
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Performed · outcome unconfirmed · Original poster
While mic'ing the crank I discovered that EPS, the company that installed the IMS bearing, also installed a RMS crank seal due to grooves on the end.
Install little deeper or shallower than the porsche spec
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 performed work without a confirmed outcome
1
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Performed · outcome unconfirmed
The seal can be installed a little deeper or shallower than the Porsche spec to clear this spot with the lip of the seal.
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
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Suggestion
Be sure to clean off any high points on the flywheel end.
Install dry and tight will leave a residual of ptfe
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
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.
Performed · outcome unconfirmed
PTFE when installed dry and tight will leave a residual of PTFE on the crankshaft as its running surface to form a PTFE to PTFE very slick running seal....
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
PTFE when installed dry and tight will leave a residual of PTFE on the crankshaft as its running surface to form a PTFE to PTFE very slick running seal....
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
PTFE when installed dry and tight will leave a residual of PTFE on the crankshaft as its running surface to form a PTFE to PTFE very slick running seal....
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.
9 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 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: 20261026T052503Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
FML,
While mic'ing the crank I discovered that EPS, the company that installed the IMS bearing, also installed a RMS crank seal due to grooves on the end. Well they must have took a hammer to it because the sealing surface is trashed. In addition, the FMS area appears to have a worse problem. See pics. I see that there are companies that can "re-sleeve" the crank with a thin piece of stainless to have a better surface. I think I can get a Speedi Sleeve but looking for some feedback from you guys.
I'd make sure the flywheel end has no raised metal. Then wipe it with a little jb weld to fill the divots and install a speedy sleeve.
Front I'd just push the seal in a little more or less to get away from that groove.
If you're superstitious you could sleeve the front too.
Superstitious indeed. lol I don't like leaks and I'm spending a mint to get this high mileage engine back on the road. Although I love the abuse, I don't like seeing neglect inside the egine. Makes me mad. I'll just sleeve both ends. They're cheap. BTW, someone with a tremendous amount of knowledge of these engines recommended JBW too! Thanks!
The seal can be installed a little deeper or shallower than the Porsche spec to clear this spot with the lip of the seal. There’s a wide range of areas across both flanges where the journal is the proper width to accept the seal.
Some good and accurate advise from
@theprf
and
@BRS-LN
...not much I can add, BUT I will say to install the new seal "DRY"..( no lube) .. The new seals are PTFE ( Teflon) and are designed to be installed dry to function properly and to "break-in" correctly... PTFE when installed dry and tight will leave a residual of PTFE on the crankshaft as its running surface to form a PTFE to PTFE very slick running seal.... IF lube is used on the seal lip, the transfer will not take place and the advantage of using PTFE is lost, and the seal will be less effective..
