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Replace camshafts on 996 c2

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YOUR RESEARCHReplace camshafts on 996 c2

Leading reported evidence

Replace camshafts

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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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 contain suggestions: 1

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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 am replacing the camshafts on my 996 c2 2002.
Original post Read captured discussion
Replace camshafts on 996 c2

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Leading evidence: 'Replace camshafts' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace camshafts' (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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1 matching discussions · 2 captured posts examined · 0 partial discussions

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Tighten bolts

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
When reinstalling the camshafts, the manual tells me to put the crank in U6 position, install the cams, rotate the crank to OT and then tighten the bolts.
Original post Read captured discussion
Replace camshafts on 996 c2

Frequently discussed actions (2)

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

Replace camshafts

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
I am replacing the camshafts on my 996 c2 2002.
Original post Read captured discussion
Replace camshafts on 996 c2

Tighten bolts

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
When reinstalling the camshafts, the manual tells me to put the crank in U6 position, install the cams, rotate the crank to OT and then tighten the bolts.
Original post Read captured discussion
Replace camshafts on 996 c2

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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.

2 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: 20261026T222516Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I am replacing the camshafts on my 996 c2 2002. I have read the 101 projects for your Porsche 911. I just have one question. When reinstalling the camshafts, the manual tells me to put the crank in U6 position, install the cams, rotate the crank to OT and then tighten the bolts. Can somebody explain the reason for doing this procedure? Why not just install the sprocket on the exhaust cam with the bolts in the middle of the grooves directly (as happens when doing the proper procedure)? Robert

POST 2Original post

IIRC, at TDC some of the valves are open, so you’d be fighting the valve springs and stressing the cam shaft...which is especially dangerous given that most of the cam caps are in the valve cover. By turning a few degrees off TDC you get a spot where all the valves are closed, making installation easier and safer for the cams.

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