FE Power Forums
FE Power Forums => FE Technical Forum => Topic started by: 60sIron on August 11, 2025, 02:17:27 PM
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So I've had a thread insert for a rocker stud pull out of my aluminum head. It presented itself as an increasingly loud rattling noise. I'm in the process of figuring out what I'm going to do, but I wanted to ask the community what causes this. I torqued the studs to 40-45 ft lbs. I assume if there was a coil bind problem it would have destroyed all the inserts immediately, not slowly over the course of a few hundred miles. Interested in hearing your thoughts on this. Hopefully I can fix this and it will stay fixed.
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Head soft, too much spring load, coil bind, could be a number of things.
I pulled a couple of studs out of some Pond heads once, with about 600 lbs of spring load.
What kind of head is it?
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What kind of head is it?
It is a BBM head, probably 2016 or 2017 vintage.
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Did you torque the stud itself, into the head 40-45 ft/lbs, or did you torque the nuts to that amount?
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Few month's ago another fellow had a similar problem. Jay had a nice diy type fix if you have an old rocker assembly lying around.
https://fepower.net/simplemachinesforum/index.php?topic=12720.msg136806#msg136806
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Did you torque the stud itself, into the head 40-45 ft/lbs, or did you torque the nuts to that amount?
The studs were just screwed in finger tight. The nuts were torqued with the ARP lube that came with the kit.