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Discussion summary
YOUR RESEARCHIMS oil pump hex shaft issue - please help!
Leading reported evidence
Check first, as i'm new
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Suggestion · Original poster
This has been mentioned before as I searched and checked first, As i'm new to the forum I would just like further clarification if possible please.
Leading evidence: 'Check first, as i'm new' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check first, as i'm new' (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
Edit: that doesn't solve the issue that the female hex in the IMS is no longer a blind hole, so you either have to disassemble the whole engine to remove and repair/replace the IMS or use the appropriate loctite retaining compound (638, 648, 658) to prevent the new hex drive to drop inside IMS again.
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.
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Suggestion · Original poster
Any permanent solution or is it an engine apart job only to replace the damaged ims shaft for a new one?
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.
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Suggestion
Edit: that doesn't solve the issue that the female hex in the IMS is no longer a blind hole, so you either have to disassemble the whole engine to remove and repair/replace the IMS or use the appropriate loctite retaining compound (638, 648, 658) to prevent the new hex drive to drop inside IMS again.
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
Short of replacing the IMS shaft entirely, that is the only option.
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Suggestion
Edit: that doesn't solve the issue that the female hex in the IMS is no longer a blind hole, so you either have to disassemble the whole engine to remove and repair/replace the IMS or use the appropriate loctite retaining compound (638, 648, 658) to prevent the new hex drive to drop inside IMS again.
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
Edit: that doesn't solve the issue that the female hex in the IMS is no longer a blind hole, so you either have to disassemble the whole engine to remove and repair/replace the IMS or use the appropriate loctite retaining compound (638, 648, 658) to prevent the new hex drive to drop inside IMS again.
Use appropriate loctite retaining compound (638, 648, 658)
No successful repair reported for this finding.
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Unsuccessful attempts
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Read evidence and context
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Suggestion
Edit: that doesn't solve the issue that the female hex in the IMS is no longer a blind hole, so you either have to disassemble the whole engine to remove and repair/replace the IMS or use the appropriate loctite retaining compound (638, 648, 658) to prevent the new hex drive to drop inside IMS again.
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.
17 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261027T154520Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi everyone,
This has been mentioned before as I searched and checked first, As i'm new to the forum I would just like further clarification if possible please.
My car is an early 996 C2 cable throttle car with the dual row ims.
I was in the middle of replacing the oil pump and hex drive key with the LN Engineering one.
Very long story short.... when lining up for fitment of the new oil pump with the ims...... we sheered a hex drive in the hex shaft and we had to remove the broken part, in doing so the back came away from the hex hole and the broken bit fell inside the hollow of the ims shaft....
I have read on one post that there is apparently a stop in the hex hole to stop the hex oil pump key from falling inside the ims shaft. It has been said that the stop is a press fit ..... is this true?
Have I not just sheered the back of the hex hole off?
Any permanent solution or is it an engine apart job only to replace the damaged ims shaft for a new one?
Further information on this would be a massive help.
Kind Regards Phill.
I ended up replacing that IMS shaft.
I couldn’t find a suitable repair and didn’t want to chance it.
The replacement shaft was cheap compared to a ruined Boxster M96 rebuild.
Allow me the question what did you do to try and align the IMS that the hex drive broke?
I would think the amount of force or hammer blows to shear a 6mm steel hex, would have anybody stop and find the cause for the two not lining up and alleviate that instead (chain tensioners, for example).
I would try to fish the piece out of the IMS by a neodynium magnet on a rod. Once you get the square end on to the magnet, you should be able to turn it such, that it aligns with the hex in the IMS and pull it out.
Edit: that doesn't solve the issue that the female hex in the IMS is no longer a blind hole, so you either have to disassemble the whole engine to remove and repair/replace the IMS or use the appropriate loctite retaining compound (638, 648, 658) to prevent the new hex drive to drop inside IMS again.
Wrong thread? I would note CFS is a PWR partner and often uses their cores. But that doesn�t mean they would be the same products, only that they COULD be.
As an alternative to a major service, if the hex piece was fished out, perhaps you could pin or otherwise secure the he. In the oil pump gear? Sub-optimal in any case!
Although� maybe that�s an interesting way to lube the IMS bearing. Hmm.
If I understand correctly, the freeze plug in the end of the IMS shaft got pushed out and it's now inside the IMS tube. Short of replacing the IMS shaft entirely, that is the only option. I really hope that's not the situation here.
Any possibility of fishing it out? You have tools such as an extended 'graber' and if there's anyway to insert a finger in there and feel you can insert a magnet in a glove to get it. Failing that, it may be possible to use the grabber tool and grab the magnet and insert it further in the shaft.
Just my 2 cent
Even if you fish it out, the plug has been dislodged. The oil pump drive will fall into the IMS tube again during operation, resulting in a complete loss of oil pressure. This is one of the dozens of documented modes of failure of the M96 engine.
Sorry that I can't find a better photo at the moment, but I've circled the freeze plug that is press fit here in the end of the IMS shaft to hold the oil pump drive in place.
As above, even if the freeze plug is fished out, the hex would have to be fixed in the gear somehow.
This is an all or nothing solution, if it doesn�t work, you likely won�t have anything left to rebuild.
You will have Schrodinger�s oil pump forever after. Up to you if you can live with that.
