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IMS chain tensioner

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10 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHIMS chain tensioner

Leading reported evidence

Replace ims chain tensioner

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 · Original poster

Hi, on a 5-chain engine, what needs to be locked in order to safely replace the IMS chain tensioner?

Original post Read captured discussion
IMS chain tensioner
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Leading evidence: 'Replace ims chain tensioner' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace ims chain tensioner' (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 · 10 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Replace other tensioners

Suggestion or failed attempt

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 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

I understand the need for locking cams respectively, when replacing the other tensioners, so my remaining question is for the IMS chain.

Original post Read captured discussion
IMS chain tensioner

Replace tensioners

Suggestion or failed attempt

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 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

I researched this before changing the tensioners on my 5-chain.

Original post Read captured discussion
IMS chain tensioner
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 ims chain tensioner

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

Hi, on a 5-chain engine, what needs to be locked in order to safely replace the IMS chain tensioner?

Original post Read captured discussion
IMS chain tensioner

Replace other tensioners

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

I understand the need for locking cams respectively, when replacing the other tensioners, so my remaining question is for the IMS chain.

Original post Read captured discussion
IMS chain tensioner

Replace tensioners

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

I researched this before changing the tensioners on my 5-chain.

Original post Read captured discussion
IMS chain tensioner
Coverage and how to read this overview

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.

10 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: 20261026T122219Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi, on a 5-chain engine, what needs to be locked in order to safely replace the IMS chain tensioner? I understand the need for locking cams respectively, when replacing the other tensioners, so my remaining question is for the IMS chain.

POST 2Original post

The engine must be locked at TDC, camshaft(s) locked. I have a 3 chain, so I only locked bank 1 camshaft.

POST 3Original post

Tdc and lock one cam. Its a safety thing to make sure nothing slips or rotates.

POST 4Original post

On a five chain engine I wouldn't worry about locking cams if only doing the IMS chain tensioner. Don't see how they could move with both of their tensioners installed. But do whatever you think is safe. Lock the crank.

POST 5Original post

I researched this before changing the tensioners on my 5-chain. Just locking the crank in TDC....done by putting a 8mm (If I remember correctly) drill bit in the pulley.

POST 6Original post

Quotes source post: 17890188

I did the same on my 5-chain motor.

POST 7 / ORIGINAL POSTEROriginal post

Thanks guys, it�s my first time working on an M96. I�ll lock the crank first, then do the IMS chain tensioner while having one of the cams locked. I�m doing the other tensioners as well. i think I got it all figured out now 😊

POST 8Original post

Aren't dual-row IMSB M96 motors 6 chains? Do single row motors only have one connecting chain to the crank? Interesting.

POST 10Original post

Quotes source post: 17892484

5 chain engines can have a single or dual row IMSB. The 3 chain engines all had single row, with the changeover to a larger single row in 2005-6. They both have one chain connecting the crank to the IMS.

This is a source reference. Confirm exact model applicability in the original material.