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996 and 997 3.6 Motor Compatibility

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15 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH996 and 997 3.6 Motor Compatibility

Leading reported evidence

Install though

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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 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

The M97 can still have the ims replaced or solution installed though, but it's no longer as simple a job.

996 and 997 3.6 Motor Compatibility
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Leading evidence: 'Install though' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install though' (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.

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1 matching discussions · 15 captured posts examined · 1 partial discussions

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Replace oil

Suggestion or failed attempt

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 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

Since the M97 has the better bearing though, the general consensus is it's smarter to remove the grease seal and let the engine oil lubricate it and make sure you regularly change your oil.

996 and 997 3.6 Motor Compatibility

Use dipstick) and improved timing

Suggestion or failed attempt

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 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

M97 motors have a few differences which can be seen as advantageous such as the the mechanical vacuum pump, oil management system (albeit the ability to use a dipstick) and improved timing.

996 and 997 3.6 Motor Compatibility
Frequently discussed actions (3)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Install though

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

The M97 can still have the ims replaced or solution installed though, but it's no longer as simple a job.

996 and 997 3.6 Motor Compatibility

Replace oil

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

Since the M97 has the better bearing though, the general consensus is it's smarter to remove the grease seal and let the engine oil lubricate it and make sure you regularly change your oil.

996 and 997 3.6 Motor Compatibility

Use dipstick) and improved timing

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

M97 motors have a few differences which can be seen as advantageous such as the the mechanical vacuum pump, oil management system (albeit the ability to use a dipstick) and improved timing.

996 and 997 3.6 Motor Compatibility
Coverage and how to read this overview

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.

15 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Porsche Forum Australia: 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: 20261027T042512Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi All, I am new to this forum and the Porsche world I recently purchased a 2005 997 Carrera 4 off a friend with a blown motor (IMS failure). A few hundred kms before that happened, they spend a packet of money on new parts for the engine but neglected the IMS bearing. My questions is, would the 3.6 motor from a 2003 996 bolt in with a few modifications? If so what is needed and can any parts necessary be taken off the old motor? Reason I ask is I know someone with this motor at a good price and very low kms so I thought it would be worthwhile asking. Thanks in advance!

POST 2Original post

This is right off the top of my head (so maybe bs!) and it is probably different in each state, but I recall reading once that while you can put a newer motor (i.e. from a car manufactured after the recipient car) into an older car, you can't put an older motor into a newer car. Might be worth checking up on that first.

POST 3Original post

Hi, when you say blown do you mean destroyed as hole in the block and unable to rotate or noisy rattly.

POST 4Original post

Check  out what @JWM  has said about the engine swap rules, But the motor would fit with out much drama. But if possible you be better off with the original motor.

POST 5Original post

Quotes source post: 345255

Sounds like a great candidate for an LS1 conversion I know, Heathen!! 😝

POST 6 / ORIGINAL POSTEROriginal post

Quotes source posts: 345275, 345284

Thats JWM, I'll look into that first! Unfortunately it has blown a hole in the block

POST 7Original post

@997Phantom I think it should fit, but the wiring harness pinout is different even though the connectors are the same. Which will probably need a 996 ECU which might then cause other problems. Not saying it can't be done, you might just be chasing your tail for awhile swapping components and doing some modifications. I'm not sure why you would want to go backwards anyway unless your 997 actually did have the M96. M97 motors have a few differences which can be seen as advantageous such as the the mechanical vacuum pump, oil management system (albeit the ability to use a dipstick) and improved timing.

POST 8 / ORIGINAL POSTEROriginal post

Thanks @Mike737 As my 997 is not an "S" I am led to believe it has the M96 motor (M97 is reserved for the S models right ?) I would much rather stick with the same motor that came out of it but I think I might have to start looking overseas as I'm struggling to find one in Australia that isn't over the top price-wise Cheers

POST 9Original post

Quotes source post: 345397

Not true, M97's were available in 05 for non S cars. Are you able to take a look? It will be stamped on a metal plate right next to your sump like in this image on the left/passenger side of the engine. Maybe one of the reasons why the IMS wasn't serviced is because it had the non serviceable IMS bearing which indicates an M97. The M97 can still have the ims replaced or solution installed though, but it's no longer as simple a job. Since the M97 has the better bearing though, the general consensus is it's smarter to remove the grease seal and let the engine oil lubricate it and make sure you regularly change your oil.

POST 10 / ORIGINAL POSTEROriginal post

@Mike737 I had the motor sitting in a warehouse so it I only just got a chance to looks at. Unfortunately the engine number starts with M96..... Thanks for your help though, you had me hopeful it was a M97. Would a M97 be a straight forward (ish) bolt in? Cheers

POST 11Original post

Quotes source post: 346916

If your blown motor is a M96 then in theory you should be able to straight swap in any 996 3.6 engine. You can also service that IMS bearing at the same time or go for a solution which is a lot easier than the M97. M97 into a 997 should bolt in, but I'm not sure about wiring harness and ECU compatibility in these between years if it previously had a M96. I'd be having a chat to some of the more knowledgeable and enthusiast workshops around the country since they will have done it before and will be able to give you a better idea of what you're getting yourself into.

POST 12 / ORIGINAL POSTEROriginal post

@Mike737 Appreciate you following up again mate, that gives me a way to move forward. I will do some research to find an enthusiast workshop here in Adelaide. Cheers

POST 13Original post

Quotes source post: 347045

I wouldn't just talk to places in Adelaide. It may cost you an extra grand or so to ship the car, but it's better to find a shop which has got it down pat and can give you a final number range instead of just an estimate, which could easily blow out by another 5-10k.

POST 14Original post

Quotes source post: 347045

Ask @LeeM  who  to see , I think he has a fair knowledge of were to findstuff in Adelade.

This is a source reference. Confirm exact model applicability in the original material.