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YOUR RESEARCHOil leak (not RMS) with pics...
Leading reported evidence
Inspect )
Performed · outcome unconfirmed
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Performed · outcome unconfirmed · Original poster
Last month - Car gets dropped off at Indy, part replaced for the 4th time, multiple tests performed (oil dyed to follow leak, leakdown test, spark plugs inspected).
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Suggestion · Original poster
Needless to say that after numerous black flags (for smoke) my weekend was cut short as there was no way to repair this hose at the track and my "cleaning" was not helping.....
Leading evidence: 'Inspect )' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean " was not helping' (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 4th time, multiple tests performed (oil dyed
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Performed · outcome unconfirmed · Original poster
Last month - Car gets dropped off at Indy, part replaced for the 4th time, multiple tests performed (oil dyed to follow leak, leakdown test, spark plugs inspected).
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 performed work without a confirmed outcome
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Performed · outcome unconfirmed
Typically a rubber piece like that is used for airflow or a CV Boot.
Use screw type clamp instead of the original spring clamp
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Performed · outcome unconfirmed
I noticed that the new indy used a screw type clamp instead of the original spring clamp.
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Performed · outcome unconfirmed
Usually I use the spring clamp on the bottom and the screw clamp on top, still tricky becasue as you tihten the screw clamp in tends to twist and i have seen cars come back becasue people cut the bellows with the screw clamp.
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Clean " was not helping
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Suggestion · Original poster
Needless to say that after numerous black flags (for smoke) my weekend was cut short as there was no way to repair this hose at the track and my "cleaning" was not helping.....
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.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed · Original poster
Last month - Car gets dropped off at Indy, part replaced for the 4th time, multiple tests performed (oil dyed to follow leak, leakdown test, spark plugs inspected).
Replace 4th time, multiple tests performed (oil dyed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed · Original poster
Last month - Car gets dropped off at Indy, part replaced for the 4th time, multiple tests performed (oil dyed to follow leak, leakdown test, spark plugs inspected).
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
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Generation: 20261026T163944Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
First off... this site has provided unmeasurable assitance and guidance (lightnening of my wallet mainly for mods and a healthy track addiction...) I normally don't post much but have had a re-ocurring problem and would greatly appreciated some feedback...
Some history...
4 months ago - Oil leak started at the track when part #99610723752 hose gave up.... (see pic #1 and #4) This is the hose located just below the oil seperator. The back end of car was coated in oil... Needless to say that after numerous black flags (for smoke) my weekend was cut short as there was no way to repair this hose at the track and my "cleaning" was not helping.....
3 1/2 months ago - Car gets dropped off at my Indy, part replace for the 1st time . Car leaks again within 1 week at the hose.
3 months ago - Car gets dropped off at my Indy, part replace for the 2nd time, oil seperator replaced. Car leaks again within 1 week at he hose.
2 months ago - Car gets dropped off at my Indy, part replace for the 3rd time.
Car leaks within 2 weeks at the hose.
Last month - Car gets dropped off at Indy, part replaced for the 4th time, multiple tests performed (oil dyed to follow leak, leakdown test, spark plugs inspected). Car started leaking at the same spot again ysterday.... (see pic #2, spot on ground, and pics #3 and #5 taken this morning for the actual leak location)
No track time since leak occurred.
Several questions....
1. Is this hose a common problem?
2. Is this hose really that difficult to replace or do I need a new Indy(this could be a stupid question?)?
3. Has anyone on this board had this problem (the leak not the Indy)?
I leave for the big track at Willow Springs on 1/13 and 1/14 and have grave concerns that the problem I had last time will re-occurr and have me leaving early once again.
I have had thoughts of
, giving my Indy the
and
, as well as multiple moments of
. I can deal with most problems once or even twice, but four times and I'm beyond frustrated to say the least....
Turning rant off...
Thanks.
They are calling that a hose? Typically a rubber piece like that is used for airflow or a CV Boot.
Anyway, are you parked outside, it could be rodents chewing their way in, especially if it's happening in the exact same spot of the hose.
YOu need a new shop. they are tearing the hose when they install it, usually happens if you attempt to use 2 spring clamps to secrue the bellows (your hose) without unbolting and lifting the oil seperator for instalation. You can install the beloows with out undoing the sperator, but you need to use a screw clamp on the top.
yes it is a comon failue on older 996s , plan on doing one every 5-6 years, noe every 5-6 days though
and unless im mistaken in your last picture it looks like the top of the bellows isnt even on all the way could just b the angle though
A $12 part in one of the most awkward places. Definitely need a new shop, though. With a 6 speed, you can almost replace it yourself. I found out (the hard way) that it's next to impossible to replace it on a tip. My indy had a heck of a time with it as well.
Good for you! I noticed that the new indy used a screw type clamp instead of the original spring clamp. I wonder how much this had to do with the original tear in the material?
using 2 spring clmaps is a pita, its almost impossible to use 2 spirng clamps with out removeing the sperator. Usually I use the spring clamp on the bottom and the screw clamp on top, still tricky becasue as you tihten the screw clamp in tends to twist and i have seen cars come back becasue people cut the bellows with the screw clamp.
Picture looks good though nice and square, you should be good to go
Does this leak need to be fixed ASAP. I've noticed this leak for over a year now. Suspect it's coming from the bellows too. And if I'm getting this replaced, should I get the oil separator replaced too?
You can replace just the bellows, if theres nothing wrong with the seprator i wouldnt worry about it
unless its a tip aznd the shops going to pull the negine just to change the bellows
brad,
I can't say enough how much I appreciate your help on this forum.
Gaining real insight from a hands-on pro is awesome. Some day I'm likely to have a spot of oil show up on the floor there and I'll know what's up. Thanks man.
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Theres nothing wrong with using the OEM clamps on both ends, I never use screw clamps on that hose. Its almost tacky, if you ask me... Anyways, if you use the little blue tool that holds the clamp open to install the top clamp, its a breeze to get it on straight. I should mention when I replace the bellows I replace the clamps as well.
However, to each his own.
What side of the motor is this hose located on?
I just noticed a condensation oil trail on the passenger rear side of the motor near the Exhaust.
Thanks in advance,
Pete
