Broke a stud torquing the head down. Don't ask. Is this hole workable? Took about a mm of the top thread.
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| Head stud hole https://ausmini.com/forums/viewtopic.php?f=2&t=99494 |
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| Author: | bluehishouse [ Tue Nov 26, 2019 3:54 pm ] |
| Post subject: | Head stud hole |
Broke a stud torquing the head down. Don't ask. Is this hole workable? Took about a mm of the top thread. Sent from my Nokia 5.1 Plus using Tapatalk |
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| Author: | drmini in aust [ Tue Nov 26, 2019 4:43 pm ] |
| Post subject: | Re: Head stud hole |
It's fine. |
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| Author: | drmini in aust [ Tue Nov 26, 2019 4:47 pm ] |
| Post subject: | Re: Head stud hole |
It's fine. Make sure there are no high spots around the stud holes, they cause gasket leaks. Was the stud a new one? Recent loose ones sold are poor quality. Best to buy a set of competition ones for reliability. Eg. ARP or minispares ones. |
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| Author: | bluehishouse [ Tue Nov 26, 2019 5:25 pm ] |
| Post subject: | Re: Head stud hole |
It was new. It spun in the block then busted while the torque wrench was at 47 lbs. Im a little cranky. Sent from my Nokia 5.1 Plus using Tapatalk |
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| Author: | bluehishouse [ Wed Nov 27, 2019 2:52 pm ] |
| Post subject: | Re: Head stud hole |
That should do it.  Sent from my Nokia 5.1 Plus using Tapatalk |
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| Author: | Besser [ Fri Nov 29, 2019 3:35 pm ] |
| Post subject: | Re: Head stud hole |
A decent chamfer will clean that up. Bolts exert most of their force on the first 3 threads, the deeper you make it the more uniform the clamping load. History proves threading to the top is completely satisfactory however. |
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| Author: | TK [ Fri Nov 29, 2019 7:06 pm ] |
| Post subject: | Re: Head stud hole |
Please always check the length of the bolt/stud with the thickness of the head too. |
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