16 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHRMS replacement question
Leading reported evidence
Replace original imsb
Performed · outcome unconfirmed
No successful repair reported for this finding.
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0
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1
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Read evidence and context
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Performed · outcome unconfirmed · Original poster
I had the original IMSB replaced 30k miles ago with an LN Engineering dual row bearing.
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Suggestion
Doesn't mean that you don't want to replace it with the latest and greatest seal, but you may want to consider grouping the rms replacement with something more robust if you haven't already replaced important items.
Leading evidence: 'Replace original imsb' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace important items' (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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Suggestion
Doesn't mean that you don't want to replace it with the latest and greatest seal, but you may want to consider grouping the rms replacement with something more robust if you haven't already replaced important items.
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Suggestion
I just went thru the same exercise with my indy dropping my engine, replacing the rms, LNE Ims retro with a new one, porsche motorsports aos with the uaos, new oil cooler, and a thorough analysis of the engine and bits.
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Suggestion · Original poster
I know typically the engine is dropped to replace the seal.
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Suggestion
It's also a good time to replace spark plugs, coils, fuel injects etc.
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Replace important items
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
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Suggestion
Doesn't mean that you don't want to replace it with the latest and greatest seal, but you may want to consider grouping the rms replacement with something more robust if you haven't already replaced important items.
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 just went thru the same exercise with my indy dropping my engine, replacing the rms, LNE Ims retro with a new one, porsche motorsports aos with the uaos, new oil cooler, and a thorough analysis of the engine and bits.
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16 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261026T161109Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
All,
I have a minor leak from the rear main seal the dealership is addressing. However they are telling me they will drop the transmission to do this. I know typically the engine is dropped to replace the seal.
Is dropping the transmission an alternative method or are these guys clueless?
Thanks
If you have a 6 speed, you need to remove only the transmission, PP, clutch, and flywheel to get at the RMS. If you have a Tiptronic, you need to drop the engine and gearbox together, then separate the two on the ground.
Hopefully Skip sees this and he can comment as to most recent procedures.
But let me say this, a minor rms leak is minor and in many cases it will slow or even stop with you driving the car more frequently. Doesn't mean that you don't want to replace it with the latest and greatest seal, but you may want to consider grouping the rms replacement with something more robust if you haven't already replaced important items.
I just went thru the same exercise with my indy dropping my engine, replacing the rms, LNE Ims retro with a new one, porsche motorsports aos with the uaos, new oil cooler, and a thorough analysis of the engine and bits. It's also a good time to replace spark plugs, coils, fuel injects etc. Also good time to view the clutch and flywheel and if needed, replace them.
Yeah, I know, it's all expensive, but the cost of dropping an engine or just a transmission can be used to your advantage by not incurring that cost again over the next decade or two.
I know it's probably more info than you are looking for, but figured it may help as you think through other part replacements that may be needed and ways to contain costs.
Thank you all for the info. The car is a 99 with 6 speed manual. All of the major service items were done with 60k on the clock. I'm now turning 90k and the leak started about 5,000 miles ago. Since it is my daily driver, I don't think it will get any better.
Again, thanks for the info.
Only thing is are you certain it is leaking from the RMS? I recently had major work done on my 996.2. Here are some pics of the rear of the engine before the work was done. I could see oil on the bell housing bottom but not enough to actually form a puddle before the engine was dropped. I'm unable to say whether the minor leak was from the RMS, or the IMSB in the next pic.
Good question.
I had the original IMSB replaced 30k miles ago with an LN Engineering dual row bearing. I don't recall seeing too many instances of these leaking, I also don't believe these have a seal.
Thanks
A good tech can drop the gearbox in 4 hours. You can conceivably get it done in one day.
(An excellent, highly experienced tech can drop the gearbox in 2 hours. Someone here claimed to have it done in 45 minutes)
Having removed my 996 gearbox recently, i'd be frustrated if a 'good tech' took 4 hours to just remove the 'box.. I've never done one before and took me a lot less time and i'm not even a mech by trade.
