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Need help with Timing Chain Adjuster Removal 987.1

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

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YOUR RESEARCHNeed help with Timing Chain Adjuster Removal 987.1

Leading reported evidence

Replace clutch and pressure plate it's also a good opportunity

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Reported fixes: 0
Unsuccessful attempts: 1
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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

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Suggestion
Since I'm replacing the clutch and pressure plate it's also a good opportunity to replace the
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Need help with Timing Chain Adjuster Removal 987.1

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Leading evidence: 'Replace clutch and pressure plate it's also a good opportunity' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace clutch and pressure plate it's also a good opportunity' (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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1 matching discussions · 6 captured posts examined · 1 partial discussions

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Suggestion or failed attempt

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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
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Original post Read captured discussion
Need help with Timing Chain Adjuster Removal 987.1

Suggestion
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Need help with Timing Chain Adjuster Removal 987.1

Suggestion
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Need help with Timing Chain Adjuster Removal 987.1

Frequently discussed actions (2)

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

Replace clutch and pressure plate it's also a good opportunity

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
Since I'm replacing the clutch and pressure plate it's also a good opportunity to replace the
Original post Read captured discussion
Need help with Timing Chain Adjuster Removal 987.1

Use tapatalk

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
Sent from my Pixel 3 using Tapatalk
Original post Read captured discussion
Need help with Timing Chain Adjuster Removal 987.1

Suggestion
Sent from my XT1650 using Tapatalk
Original post Read captured discussion
Need help with Timing Chain Adjuster Removal 987.1

Suggestion
Sent from my Pixel 3 using Tapatalk
Original post Read captured discussion
Need help with Timing Chain Adjuster Removal 987.1

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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.

6 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 · 3 excluded by outcome qualification · 0 adjusted by outcome qualification.

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

Generation: 20261027T064914Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

I'm new to this forum and the Boxster community! I recently bought a used 2005 Porsche 987 Boxster S with 92,000 miles. The previous owners have done the maintenance but did not address the IMS bearing issue. I have decided to preemptively replace the IMS bearing along with a new clutch kit and the process has been fairly straight forward to where I have so far removed the transmission, clutch/pressure plate/flywheel to expose the IMS . I purchased a Single Row Pro IMS Retrofit kit from LN Engineering and according to their instructions I have to remove all 3 timing chain adjusters (tensioners) after locking both the cams on bank 1-3 at TDC. The crankshaft/ IMS timing chain adjuster and 1-3 timing chain adjuster are easy to reach but the 4-6 adjuster is not reachable even with the AC compressor removed (see photos). It seems the M96 .26 (MY 05) engine has a very different water guide housing and AC compressor mount that obstructs access to the chain adjuster. Has anyone had experience removing the 4-6 bank chain adjuster on a '05 987 Boxster ? A more fundamental question might be: do I actually need to remove the 4-6 bank chain adjuster to install the new IMS bearing ? Thanks for reading!

POST 2Original post

I hope you verified that you have the replaceable IMS bearing before starting this process. My '05 Boxster S had the larger non-serviceable bearing which requires a case split to change out the bearing.

POST 3Original post

Confirmed by inspection! Sent from my Pixel 3 using Tapatalk

POST 4Original post

I dunno... IMO if it hasn't failed yet, it probably won't. I'd try to diagnose a problem first before opening up a can of worms. But it's your car, and your decision. Sent from my XT1650 using Tapatalk

POST 5Original post

Since I'm replacing the clutch and pressure plate it's also a good opportunity to replace the IMS bearing . There is an 8-10% failure rate for the type of IMS bearing in my Boxster so, it's worth the peace of mind to change it. Sent from my Pixel 3 using Tapatalk

POST 6Original post

Update - I contacted LN Engineering and the support person advised me that I could attempt the bearing replacement without removing the 4-6 bank tensioner. There is a chance that when I remove the flange, the IMS (shaft) may move in which case I would then have to remove the 4-6 tensioner. I'm going to try removing the bearing with the two tensioners out. Has anyone else tried replacing the IMS bearing without removing the 4-6 tensioner on a 3 chain engine? My M96 .26 engine version seems to have a different mount for the A/C compressor which obstructs the tensioner, even with the compressor removed. It seems I have to remove the belt drive bracket to gain access to the tensioner (see diagram). Can anyone confirm this? Thanks, RobT Sent from my Pixel 3 using Tapatalk

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