16 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHInstalling LN IMS Solution
Leading reported evidence
Install on the driver’s side
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
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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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
You'll know this is the case when the ims isn't centered in the housing bore for the flange once you have the flange off the engine, so that's why it is good to check the cam timing first before even starting the job.
Leading evidence: 'Install on the driver’s side' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'easiest solution' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check cam timing first' (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.
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 suspect a cause
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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
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Suggestion
You'll know this is the case when the ims isn't centered in the housing bore for the flange once you have the flange off the engine, so that's why it is good to check the cam timing first before even starting the job.
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.
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.
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Suggestion
Yes its neccessary for replacing the imsb with any version, factory or aftermarket.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Check cam timing first
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
You'll know this is the case when the ims isn't centered in the housing bore for the flange once you have the flange off the engine, so that's why it is good to check the cam timing first before even starting the job.
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.
16 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: 20261026T130754Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Is it absolutely necessary to remove the chain tensioner under the AC compressor to successfully complete this job? I noticed in my kit there are only 2 chain tensioner crush washers, but there are 3 chain tensioners. The instructions allude to the fact that the chain tensioner under the AC compressor may have to be removed if the IMS shaft does align with the engine bore. But the instructions clearly state remove it. I called LN thinking I got shorted 1 crush washer, but was told I only needed 2.
There is definitely a disconnect.
Thanks!
Yes its neccessary for replacing the imsb with any version, factory or aftermarket. If u dont u can not center the cover and it will tear the o-ring or just not go in. Just reuse the crush color, u doubt it will leak. Worst case i bet your local dealer can get it in a day.
Hm. I don't recall my kit including ANY chain tensioner crush washers. I know for a fact that I purchased these from the Porsche dealer - so if they were in the kit I definitely didn't see them.
That being said, I was told on good authority that removing the chain tensioner below the A/C compressor was not necessary. I listened, didn't remove it, and completed my install. If LN tells you that you don't need to do it, I would trust them - they know what they're talking about.
I guess but from the instructions... just saying.
Jake was very adiment that when i was having an issue with a seal leak on my dual row retro that it was probably because a lazy tech probably didnt want to pull the top tensioner. Your car... good luck.
I am having trouble getting the cam lock tool to fit correctly. I
set the engine at TDC and I can see the camshaft locking tool lines-up with the slots on the cam. However, the threads in the engine block don’t align with the hole in the tool. I would say it’s off by 1/8” so therefore I can’t screw the bolt into the block without being cross threaded.
My cam deviation was camshaft 1 deviation.30, camshaft 2 deviation 1.86 before I started work.
Here are some pictures of the tool and the misalignment of the tool bolt hole and the engine block threads. I can see that both ends of the tool are inserted into the cam grooves, but it looks like the upper end of the tool is slightly skewed possibly causing the misalignment of the tool. The tool is installed on the driver’s side. It seems that tool is hitting the engine casting obstructing the position of the tool relative to engine block threads.
Anybody run into this issue? It looks like the tool may need grinding to prevent hitting the block and aligning with engine threads.
Ooooo... yeah, I think that�s a good idea before grinding
they might not look kindly on that
They May prefer you grind the piece of the case that�s interfering...
Typically the 3rd tensioner under the a/c compressor can pose an issue if the cam timing is off. You'll know this is the case when the ims isn't centered in the housing bore for the flange once you have the flange off the engine, so that's why it is good to check the cam timing first before even starting the job. The factory procedure for resealing the ims flange (as close as any guidelines you are going to get from Porsche) does not have you remove this tensioner either. That's why we do not include extra cam plugs nor chain tensioner sealing ring for that bank when we supply the optional sealing kit.
Considering that tool rental has been in service quite a long time, I'm guessing that there is probably some drift in the casting on the engine causing the interference. You can either grind the area on the engine that is causing the interference or you can clearance the tool. I'm perfectly ok with you modifying the rental cam lock so as to be able to proceed with the procedure. That's probably the easiest solution.
Update:
So at least on my car, it is not necessary to remove the chain tensioner under the AC compressor to install a new IMSB. The IMS aligns perfectly with the bore in engine case, making it accessible to remove and install a new bearing.
Im about to complete the IMS Solution install. Can deviations were fine. Transmission is out, just waiting the LN Engineering tools to arrive today. Can anyone how has completed this recently confirm i dont need to remove the chain tensioner under the compressor and that is the latest guildance from LN Engineering. Im hoping to complete this weekend and LN Engineering is not available.
If you have specific questions, although we are closed, we do have an AI agent that can probably take care of most of your questions.
https://lnengineering.com/
We also have lots videos on our YouTube channel:
You Tube
This is a source reference. Confirm exact model applicability in the original material.
