8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHExhaust Bolt Broken In Head? Don't panic. Get this simple drill guide.
Reported or suspected cause
location closest
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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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 report identifying a cause
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.
Reported cause · Original poster
It was the location closest to the IMS chains so access was limited.
Exhaust Bolt Broken In Head? Don't panic. Get this simple drill guide.
Read full discussion summary
Leading evidence: 'location closest' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'location closest' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Install time-sert' (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.
Exhaust Bolt Broken In Head? Don't panic. Get this simple drill guide.
Use copper based anti-seize
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 · Original poster
No thread locker in the head, I used copper based anti-seize.
Exhaust Bolt Broken In Head? Don't panic. Get this simple drill guide.
Use studs
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
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.
Performed · outcome unconfirmed · Original poster
Yes I used studs with a female hex on the end, they are continuous thread.
Exhaust Bolt Broken In Head? Don't panic. Get this simple drill guide.
Use .i presume you
Suggestion or failed attempt
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 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
Other Forum members would be interested to know what specific studs you used .I presume you used studs with the female hex at one end ?
Exhaust Bolt Broken In Head? Don't panic. Get this simple drill guide.
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.
8 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.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
But for the cost (less than $26 shipped), this worked very well.
So I was doing some heavy maintenance on my '01 986s which included removing the headers. I have never liked the bolts used to secure these to the heads so I convert them to stainless studs. This time, one of the bolts broke off close to the head. PB Blaster, Heat, vice grips - this bolt was not coming out. It was the location closest to the IMS chains so access was limited. I center punched it and started to try a left hand drill bit - but it was walking. So I ordered this little helper from Stomski Racing (NO affiliation).
Once it arrived, I put it on the 1/8" of bolt left, held it in place with vice grips and put a drill bit right into the center of the bolt nice and easy (wear safety glasses...). After that I made an attempt with an easy out but it was not going to work. Kept on drilling and installed a time-sert. The headers bolted up fine to the new studs.
I've struggled in the past to get such drilling operations "in situ" done without going off center. The tool above _really_ helped me out to do this without much pain. Highly recommended. Stomski also has a much more professional tool for this that if I was a pro I would invest in, since it would save more time and be less likely to create an "oh poop" moment. But for the cost (less than $26 shipped), this worked very well.
CBracerX
Very helpful fix and suggestion to change to s/s studs.
Other Forum members would be interested to know what specific studs you used .I presume you used studs with the female hex at one end ? Did you use studs with a center shoulder or continuous threads?
The interesting challenge is the specific length and whether you used any thread locker on the stud threads that fit in the cylinder head ?
I ask because studs can complicate the R&R of the headers+cats if they are too long or if red loctite is used in the cylinder head.
Plug for Stomski:
https://www.stomskiracing.com/produc...mm-drill-guide
https://www.otctools.com/products/drilling-guide-system
Yes I used studs with a female hex on the end, they are continuous thread. No thread locker in the head, I used copper based anti-seize. I bought studs that were a bit too long, (ok much too long) but that did not cause any issues installing the headers.
If you search ebay for "M8 x 1.25mm Stainless Steel Extended Manifold Studs - Custom Quantity" you can find the ones I purchased. I got 60mm which is probably twice as long as needed
That does look like a good solution
I would never have thought to glue a locating ring onto the part to get the guide to align. It does require a specific diameter and thread pitch, but I know that 8mm x 1.25mm would be the one to get. Took a look but did not find on Amazon, but ebay had it. A lot pricier at $189
http://www.ebay.com/itm/QuikCenter-6...-/281788810578
but that's for several sizes 6MM-P.1.00 ,8MM-P1.25,10MM-P1.50, 12MM-P1.75.
Edit: Looks like the "glue on" bit is not included in this version.
just go to their website.
http://www.qbaroo.com/quikcentercom/
i got the 4 piece kit for under $40, but it's out of stock now.
the site is not very friendly, but the owners are, so any email or phone call can answer any questions you might have.
