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Leaking LNE ims flange?

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

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YOUR RESEARCHLeaking LNE ims flange?

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ims

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1
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Suspected cause: 0
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Discussions that report identifying a cause: 1

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Reported cause · Original poster
So i dropped the motor today and seperated the trans expecting to find a leaking rms but nope it was the ims.
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Leaking LNE ims flange?

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Replace soon

No successful repair reported for this finding.

0
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Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion · Original poster
By the limited records i have the bearing is about 5 years old with 20k on it i get by the age the bearing should be replaced soon but with 200k miles on the motor im sure it would fail a prequal and im not gonna dump extra money into this one right now.
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Leaking LNE ims flange?

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Leading evidence: 'ims' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'ims' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Replace soon' (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 soon

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Unsuccessful attempts: 1
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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
By the limited records i have the bearing is about 5 years old with 20k on it i get by the age the bearing should be replaced soon but with 200k miles on the motor im sure it would fail a prequal and im not gonna dump extra money into this one right now.
Original post Read captured discussion
Leaking LNE ims flange?

Frequently discussed actions (1)

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

Replace soon

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
By the limited records i have the bearing is about 5 years old with 20k on it i get by the age the bearing should be replaced soon but with 200k miles on the motor im sure it would fail a prequal and im not gonna dump extra money into this one right now.
Original post Read captured discussion
Leaking LNE ims flange?

Reported and suspected causes (1)

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

ims

No successful repair reported for this finding.

1
Identified cause: 0
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that report identifying a cause: 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.

Reported cause · Original poster
So i dropped the motor today and seperated the trans expecting to find a leaking rms but nope it was the ims.
Original post Read captured discussion
Leaking LNE ims flange?

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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.

3 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.

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Generation: 20261026T191851Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

So i dropped the motor today and seperated the trans expecting to find a leaking rms but nope it was the ims. After reading some posts it looks like they have possible leak areas from an o-ring on the inner stud, another on the od of the flange and encapsulated bolts. Im guessing ill call LNE for parts in monday. Is there anything else i should be checkkng for, purchasing? I do understand the LNE proceedure for flange seal removal and install. By the limited records i have the bearing is about 5 years old with 20k on it i get by the age the bearing should be replaced soon but with 200k miles on the motor im sure it would fail a prequal and im not gonna dump extra money into this one right now.

POST 2Original post

You'd need to follow the IMS procedure to a T before pulling the flange. It's possible when the bearing was replaced that the IMS shaft wasn't perfectly centered in the IMS housing bore in the block. That's a really sharp edge and if the flange is forced, it will shave the tips of the triple lip seal and cause a leak just like this. With as many miles that are on the engine (and were on the engine when it was done), I'm guessing that is what occurred. When there is more than a few degrees of cam timing deviation, the IMS shaft will often be pulled to one side, especially if the tensioner on the top of the engine under the a/c compressor was left in when the job was originally done.

POST 3 / ORIGINAL POSTEROriginal post

Thx for the info Charles. I was deffinately gonna follow the lme install guide. Its already down loaded. The nice thing is i am already replacing the variocam pads and tensioners so i should have a nicely centered ims. I have also already talked to your customer service and ordered the o-ring kit. Its LME part # 106-08.IMSRORINGS for anyone else that has this issue.

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