13 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHVertex IMS?
Leading reported evidence
Use vertex ims bearing
Performed · outcome unconfirmed
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 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
I am looking at a 1999 996 with a rebuilt motor that used a Vertex IMS bearing.
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
Schnell the hole isn’t in the oil pump, there is a metal cap pressed into the end of the ims shaft like a core plug, it’s that you punch a 1 mm hole in with a special provided punch to allow oil through the back of the ims, the feed is governed by a special groove machined into the oil pump hex drive which allows some oil from the pump to flow down the side of the hex drive , through the punched hole and into the shaft to feed oil into the bearing at the other end, a specially machined washer which sits behind the ims allows oil into the bearing , it then flows through and then runs back to the sump , this also lubricates the flat surfaces on the back of the ims flange, which the sides of th
Leading evidence: 'Use vertex ims bearing' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Lubricate flat surfaces' (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 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
Schnell the hole isn’t in the oil pump, there is a metal cap pressed into the end of the ims shaft like a core plug, it’s that you punch a 1 mm hole in with a special provided punch to allow oil through the back of the ims, the feed is governed by a special groove machined into the oil pump hex drive which allows some oil from the pump to flow down the side of the hex drive , through the punched hole and into the shaft to feed oil into the bearing at the other end, a specially machined washer which sits behind the ims allows oil into the bearing , it then flows through and then runs back to the sump , this also lubricates the flat surfaces on the back of the ims flange, which the sides of th
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
Schnell the hole isn’t in the oil pump, there is a metal cap pressed into the end of the ims shaft like a core plug, it’s that you punch a 1 mm hole in with a special provided punch to allow oil through the back of the ims, the feed is governed by a special groove machined into the oil pump hex drive which allows some oil from the pump to flow down the side of the hex drive , through the punched hole and into the shaft to feed oil into the bearing at the other end, a specially machined washer which sits behind the ims allows oil into the bearing , it then flows through and then runs back to the sump , this also lubricates the flat surfaces on the back of the ims flange, which the sides of th
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
Schnell the hole isn’t in the oil pump, there is a metal cap pressed into the end of the ims shaft like a core plug, it’s that you punch a 1 mm hole in with a special provided punch to allow oil through the back of the ims, the feed is governed by a special groove machined into the oil pump hex drive which allows some oil from the pump to flow down the side of the hex drive , through the punched hole and into the shaft to feed oil into the bearing at the other end, a specially machined washer which sits behind the ims allows oil into the bearing , it then flows through and then runs back to the sump , this also lubricates the flat surfaces on the back of the ims flange, which the sides of th
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.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Lubricate flat surfaces
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
Schnell the hole isn’t in the oil pump, there is a metal cap pressed into the end of the ims shaft like a core plug, it’s that you punch a 1 mm hole in with a special provided punch to allow oil through the back of the ims, the feed is governed by a special groove machined into the oil pump hex drive which allows some oil from the pump to flow down the side of the hex drive , through the punched hole and into the shaft to feed oil into the bearing at the other end, a specially machined washer which sits behind the ims allows oil into the bearing , it then flows through and then runs back to the sump , this also lubricates the flat surfaces on the back of the ims flange, which the sides of th
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
Schnell the hole isn’t in the oil pump, there is a metal cap pressed into the end of the ims shaft like a core plug, it’s that you punch a 1 mm hole in with a special provided punch to allow oil through the back of the ims, the feed is governed by a special groove machined into the oil pump hex drive which allows some oil from the pump to flow down the side of the hex drive , through the punched hole and into the shaft to feed oil into the bearing at the other end, a specially machined washer which sits behind the ims allows oil into the bearing , it then flows through and then runs back to the sump , this also lubricates the flat surfaces on the back of the ims flange, which the sides of th
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
Schnell the hole isn’t in the oil pump, there is a metal cap pressed into the end of the ims shaft like a core plug, it’s that you punch a 1 mm hole in with a special provided punch to allow oil through the back of the ims, the feed is governed by a special groove machined into the oil pump hex drive which allows some oil from the pump to flow down the side of the hex drive , through the punched hole and into the shaft to feed oil into the bearing at the other end, a specially machined washer which sits behind the ims allows oil into the bearing , it then flows through and then runs back to the sump , this also lubricates the flat surfaces on the back of the ims flange, which the sides of th
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.
13 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: 20261026T144035Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I am looking at a 1999 996 with a rebuilt motor that used a Vertex IMS bearing. I knew they made one but also know zero about it. Nor can I find much here using �Search.�
Anyone have experience or thoughts about it? Candidly, I am hesitant unless I can be convinced it is an OK product.
I know that there are several threads on the Cylindrical Bearing oil fed IMS like the Vertex (or the Vertex). Use the search for cylindrical or roller bearing.
Do you know how long ago the engine was rebuilt? Knowing if the bearing has miles on it will be a good indicator how it is performing. The LN bearings all have service intervals, I'm sure the Vertex does as well. There are guys on here running them, they'll chime in hopefully. My mechanic put an LN in.
There were some epic Threads on this bearing -some included Jake.It was hilarious. They received suggestions on how to improve their product (Thrust) and oiling( don't punch a hole in the back of the o.p. housing !
They acknowledged none of this but made a few mods w/o saying a word to those who encouraged them to fix it.
The product my be O.K.? But if you eventually upgrade to a different product ,how will you fix the hole in the back of the o.p. ?
The RND or LN Cylindrical roller bearing seems a better product and no butchery of the o.p. required.
BTW LN have some deals on IMSB at the moment.
Does it need Clutch & RMS ?
Schnell the hole isn’t in the oil pump, there is a metal cap pressed into the end of the ims shaft like a core plug, it’s that you punch a 1 mm hole in with a special provided punch to allow oil through the back of the ims, the feed is governed by a special groove machined into the oil pump hex drive which allows some oil from the pump to flow down the side of the hex drive , through the punched hole and into the shaft to feed oil into the bearing at the other end, a specially machined washer which sits behind the ims allows oil into the bearing , it then flows through and then runs back to the sump , this also lubricates the flat surfaces on the back of the ims flange, which the sides of the bearing races run against to give the thrust control , it seems to work well and I’ve got 5k on mine now , I know there’s been some argument on this but I don’t believe there is any actual thrust load , it’s more just something to keep the ims shaft aligned with the chain as obviously a roller bearing doesn’t have any way to stop the shaft floating around without this as it doesn’t run in grooves like ball bearings which is how they keep tracking straight without sideways movement , the cylinders of the roller bearing just run on a central shaft and would float side to side and may throw the chain without the measures in place , basically the outer edge of the bearing runs against the ims flange, acting like a plain bearing does if you like with a clearance for oil in between , originally there was just a groove machined in the flange which would catch oil from splash lubrication as this is inside the wet area of the engine lubrication where there is quite a bit of oil flying around but then it was decided to use the forced oil feed method through the shaft , and now the groove is where the pressurised oil now exits to the sump, it is said that the splash lube is good enough and the oil feed was to sure up customer concern over the amount of lubrication the bearing was getting, the LN ims solution wasn’t available when I did my build so I opted for this as I thought it looked a sturdy option , I like the ims solution best now from an engineering point of view but it’s still quite pricey at $1700 !! Compared to the eps option , so fingers crossed it keeps going !!
So I start pushing the seller of the car for details on the engine rebuild. . . He disappears. No longer responds to emails or texts.
One less car to consider.
