Pelican Parts

911/996 3.6l Timing chain replacement

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7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH911/996 3.6l Timing chain replacement

Reported or suspected cause

chain

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

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 suspect a cause: 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.

Suspected cause · Original poster
Thanks for the reply.I couldn't believe it my self but yeah the chain has definitely stretched all the guides are perfect & a new tensioner(the old one had snapped the pin that holds it together i'm assuming because of the slack chain).When i wrap the chain around the sprocket u can see that the chain does not mesh properly and it starts to climb up on the teeth.Where as the other side cylinder 4-6 is perfect.It all started off with a terrible noise/rattle coming out of the cyl 1-3 side.After some research on this site and some others i was convinced it was the IMS bearing & pulled the trans out & checked the bearing but it was perfect.After pulling the engine out & checking everything i could i noticed that when i wound the engine over by hand that the exhaust cam was trying to jump a tooth.The chain had slack in it but the tensioner was all the out.I couldn't believe it was the chain s
Original post Read captured discussion
911/996 3.6l Timing chain replacement

Frequently discussed work

Check bearing

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
Thanks for the reply.I couldn't believe it my self but yeah the chain has definitely stretched all the guides are perfect & a new tensioner(the old one had snapped the pin that holds it together i'm assuming because of the slack chain).When i wrap the chain around the sprocket u can see that the chain does not mesh properly and it starts to climb up on the teeth.Where as the other side cylinder 4-6 is perfect.It all started off with a terrible noise/rattle coming out of the cyl 1-3 side.After some research on this site and some others i was convinced it was the IMS bearing & pulled the trans out & checked the bearing but it was perfect.After pulling the engine out & checking everything i cou
Original post Read captured discussion
911/996 3.6l Timing chain replacement

Read full discussion summary

Leading evidence: 'chain' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'chain' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check bearing' (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.

Read captured replies

1 matching discussions · 7 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Check bearing

Suggestion or failed attempt

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
Thanks for the reply.I couldn't believe it my self but yeah the chain has definitely stretched all the guides are perfect & a new tensioner(the old one had snapped the pin that holds it together i'm assuming because of the slack chain).When i wrap the chain around the sprocket u can see that the chain does not mesh properly and it starts to climb up on the teeth.Where as the other side cylinder 4-6 is perfect.It all started off with a terrible noise/rattle coming out of the cyl 1-3 side.After some research on this site and some others i was convinced it was the IMS bearing & pulled the trans out & checked the bearing but it was perfect.After pulling the engine out & checking everything i cou
Original post Read captured discussion
911/996 3.6l Timing chain replacement

Repair rennlist discussion forums

Suggestion or failed attempt

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
Intermix/Cracked head repair - Rennlist Discussion Forums
Original post Read captured discussion
911/996 3.6l Timing chain replacement

Replace timing chains

Suggestion or failed attempt

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'm new to this forum & i'm looking for any info on replacing the timing chains on a 02' 911/996 carrera.It is the three chain motor & the cam chain for cyl 1-3 has streched.I have already removed the cylinder heads & there is no damage there thank god!!I was looking for anyone that has done this job before &/or may know of any tricks or things to be carefull of & anything i should also do/replace while i have her apart.Any info would be great.
Original post Read captured discussion
911/996 3.6l Timing chain replacement

Replace while i have her apart.any info would be great

Suggestion or failed attempt

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'm new to this forum & i'm looking for any info on replacing the timing chains on a 02' 911/996 carrera.It is the three chain motor & the cam chain for cyl 1-3 has streched.I have already removed the cylinder heads & there is no damage there thank god!!I was looking for anyone that has done this job before &/or may know of any tricks or things to be carefull of & anything i should also do/replace while i have her apart.Any info would be great.
Original post Read captured discussion
911/996 3.6l Timing chain replacement

Frequently discussed actions (4)

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

Check bearing

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
Thanks for the reply.I couldn't believe it my self but yeah the chain has definitely stretched all the guides are perfect & a new tensioner(the old one had snapped the pin that holds it together i'm assuming because of the slack chain).When i wrap the chain around the sprocket u can see that the chain does not mesh properly and it starts to climb up on the teeth.Where as the other side cylinder 4-6 is perfect.It all started off with a terrible noise/rattle coming out of the cyl 1-3 side.After some research on this site and some others i was convinced it was the IMS bearing & pulled the trans out & checked the bearing but it was perfect.After pulling the engine out & checking everything i cou
Original post Read captured discussion
911/996 3.6l Timing chain replacement

Repair rennlist discussion forums

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
Intermix/Cracked head repair - Rennlist Discussion Forums
Original post Read captured discussion
911/996 3.6l Timing chain replacement

Replace timing chains

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'm new to this forum & i'm looking for any info on replacing the timing chains on a 02' 911/996 carrera.It is the three chain motor & the cam chain for cyl 1-3 has streched.I have already removed the cylinder heads & there is no damage there thank god!!I was looking for anyone that has done this job before &/or may know of any tricks or things to be carefull of & anything i should also do/replace while i have her apart.Any info would be great.
Original post Read captured discussion
911/996 3.6l Timing chain replacement

Replace while i have her apart.any info would be great

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'm new to this forum & i'm looking for any info on replacing the timing chains on a 02' 911/996 carrera.It is the three chain motor & the cam chain for cyl 1-3 has streched.I have already removed the cylinder heads & there is no damage there thank god!!I was looking for anyone that has done this job before &/or may know of any tricks or things to be carefull of & anything i should also do/replace while i have her apart.Any info would be great.
Original post Read captured discussion
911/996 3.6l Timing chain replacement

Reported and suspected causes (1)

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

chain

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that suspect a cause: 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.

Suspected cause · Original poster
Thanks for the reply.I couldn't believe it my self but yeah the chain has definitely stretched all the guides are perfect & a new tensioner(the old one had snapped the pin that holds it together i'm assuming because of the slack chain).When i wrap the chain around the sprocket u can see that the chain does not mesh properly and it starts to climb up on the teeth.Where as the other side cylinder 4-6 is perfect.It all started off with a terrible noise/rattle coming out of the cyl 1-3 side.After some research on this site and some others i was convinced it was the IMS bearing & pulled the trans out & checked the bearing but it was perfect.After pulling the engine out & checking everything i could i noticed that when i wound the engine over by hand that the exhaust cam was trying to jump a tooth.The chain had slack in it but the tensioner was all the out.I couldn't believe it was the chain s
Original post Read captured discussion
911/996 3.6l Timing chain replacement

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.

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

Pelican Parts: 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: 20261027T070717Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

G'day all, I'm new to this forum & i'm looking for any info on replacing the timing chains on a 02' 911/996 carrera.It is the three chain motor & the cam chain for cyl 1-3 has streched.I have already removed the cylinder heads & there is no damage there thank god!!I was looking for anyone that has done this job before &/or may know of any tricks or things to be carefull of & anything i should also do/replace while i have her apart.Any info would be great. Thanks Evan

POST 2Original post

As the chain for 1-3 comes off the flywheel side of the IMS, I don't see how you can get it out without splitting the case. I don't think there is enough play to slide the chain past the end of the IMS and the case. Chains usually do not stretch are sure it's not the tensioner/adjuster or the guide that are worn?

POST 3Original post

Maybe the chain is OK but the bolts that "lock down" the timing adjustment on the cam gear slipped ?

POST 4 / ORIGINAL POSTEROriginal post

G'day Guys, Thanks for the reply.I couldn't believe it my self but yeah the chain has definitely stretched all the guides are perfect & a new tensioner(the old one had snapped the pin that holds it together i'm assuming because of the slack chain).When i wrap the chain around the sprocket u can see that the chain does not mesh properly and it starts to climb up on the teeth.Where as the other side cylinder 4-6 is perfect.It all started off with a terrible noise/rattle coming out of the cyl 1-3 side.After some research on this site and some others i was convinced it was the IMS bearing & pulled the trans out & checked the bearing but it was perfect.After pulling the engine out & checking everything i could i noticed that when i wound the engine over by hand that the exhaust cam was trying to jump a tooth.The chain had slack in it but the tensioner was all the out.I couldn't believe it was the chain so pulled the heads off to look further inside but all is good.I only noticed after i was pulling my hair out & wrapped the chain around the sprocket & noticed that i did not mesh correctly, i checked the other side & it was fine.Finally i found something.But now i need to replace them.Yeah definitely need to spit the block, is there any tricks that i need to know about as i have never played with these before.I have worked out that i need a special tool to put the gudgeon pins back in.I know i will need a gasket set,new chains,guides,tensioners & i'm thinking of doing sprockets as well.I was also thinking of doing the IMS bearing even though it does feel like band new.Anything else i should do while she is apart??Any help or info would be fantastic as there is pretty much nothing over here for them that i can find anyway.Thanks again guys Evan

POST 5Original post

Bigev, Ask this question on rennlist.com and 996 Series (Carrera, Carrera 4, Carrera 4S, Targa) - RennTech.org Forums renntech is very good for tech questions. rennlist has some engine builders (flat six enterprises Jake Raby is one) that chime in often. also see this thread by Dharn Intermix/Cracked head repair - Rennlist Discussion Forums

POST 6 / ORIGINAL POSTEROriginal post

Thanks mate, i didnt know of there forum i'll give it a go. Cheers Ev

POST 7Original post

Good luck. Post your discoveries it might help the next person. There are also some Aussies on Rennlist, you might find a neighbor that can help or at least stop by to give moral support and drink your Fosters.

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