12 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHAnother 3.4l crankshaft coin toss
Leading reported evidence
Replace complete
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
Make sure the securing screws that hold the flaps to the shafts are thread locked in as they fell out on some engines and they were replaced complete with new units.
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 · Original poster
The garage is a great space to work in, all sorted out now but I really do need to give the floor a proper clean after spilling a load of engine oil and doing some underside cleaning on my SEC.
Leading evidence: 'Replace complete' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean on my sec' (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 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
After a two hour drive to Nottingham I set about clearing out the garage to make some space.
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 · Original poster
The garage is a great space to work in, all sorted out now but I really do need to give the floor a proper clean after spilling a load of engine oil and doing some underside cleaning on my SEC.
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 · Original poster
I doubt that it would be worth getting the head repaired since second hand ones aren't all that expensive.
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 · Original poster
I bought a complete Boxster s 3.2l engine which I had heard running for the crank, but then decided to get that converted to a 3.7l engine so I still need one.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Clean on my sec
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 · Original poster
The garage is a great space to work in, all sorted out now but I really do need to give the floor a proper clean after spilling a load of engine oil and doing some underside cleaning on my SEC.
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
Make sure the securing screws that hold the flaps to the shafts are thread locked in as they fell out on some engines and they were replaced complete with new units.
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 · Original poster
I bought a complete Boxster s 3.2l engine which I had heard running for the crank, but then decided to get that converted to a 3.7l engine so I still need one.
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.
12 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 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: 20261026T212127Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I have a 3.4l engine which had damaged heads and crankshaft. I sourced the heads ages ago but have been struggling to find a crank. I bought a complete Boxster s 3.2l engine which I had heard running for the crank, but then decided to get that converted to a 3.7l engine so I still need one. As anybody who needs a 3.4l crank will know they are rare and expensive, so when a Boxster S engine came up for sale as 'parts only' I was interested. Symptoms were water and oil mixing, the garage tried a new oil/water heat exchanger but the fault remained so at this point the owner gave up and sold the car for parts. This only happened very recently so my finger are crossed that it is mainly oil in water and not a lot of water in oil. It turns over no problem and from the look of the oil on the engine it looks very promising. Almost certainly a cracked head, but for £600 I'm taking a risk and hopefully I'll jave a good crank, IMS, full set of camshafts and a 4-6 cylinder head.
I'm off on holiday on Tuesday but really want the crank out before then, so I have a busy couple of days ahead of me. I'll report back with progress updates...
MC
I was out last night in Manchester for a couple of shandies so it was a slower start today. After a two hour drive to Nottingham I set about clearing out the garage to make some space. I had to take my C4 engine off the stand to get the new engine on. Getting the engine out of the back of the Range Rover by myself was something of a challenge.
I then set about taking it apart. I did a little video of it.....
Crankshaft and bearing look great. Big crack on cylinder 2 was the cause of the problem.
Then with it all apart, get the C4 engine back on the stand...
I doubt that it would be worth getting the head repaired since second hand ones aren't all that expensive. There is also a damaged mounting where the bellhousing bolts to the engine, so one scrap head, one scrap block half, and a pile of decent bits. Most importantly, I now have a crankshaft for my 3.4l engine
MC
Thanks guys. I do love my 90s music
The garage is a great space to work in, all sorted out now but I really do need to give the floor a proper clean after spilling a load of engine oil and doing some underside cleaning on my SEC. If it wasn't for the space I have available and the lift in the garage I wouldn't attempt half of what I do now.
MC
Very nice.
Make sure the securing screws that hold the flaps to the shafts are thread locked in as they fell out on some engines and they were replaced complete with new units.
This is a source reference. Confirm exact model applicability in the original material.
