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Main cap studs

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Old 05-05-2016, 03:00 PM
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Default Main cap studs

Quick question...
When I removed my main bearing caps ALL of the studs pulled out rather than the nut releasing. The nut didn't even budge on the stud.
If I put these back in can I expect the torque to be correct?
I'm thinking that essentially, since the nut didn't move, it would be about the same as torquing the hexbolt next to it.
Yes, I know new bolts are cheap, but I'd rather not worry about fitting new bolts. I also don't want to damage the stud trying to get the nut to let go.
Old 05-05-2016, 09:54 PM
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Originally Posted by Jimbo_22
Quick question...
When I removed my main bearing caps ALL of the studs pulled out rather than the nut releasing. The nut didn't even budge on the stud.
If I put these back in can I expect the torque to be correct?
I'm thinking that essentially, since the nut didn't move, it would be about the same as torquing the hexbolt next to it.
Yes, I know new bolts are cheap, but I'd rather not worry about fitting new bolts. I also don't want to damage the stud trying to get the nut to let go.
Confusing... You ask about studs, then talk about hexbolts and new bolts. It's not unusual for some of the studs to unscrew, I've certainly never had them all do it. Once you break them loose and relieve the tension, the nuts should spin off. If the nuts won't unscrew by hand, you've got problems...
Old 05-05-2016, 10:10 PM
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Thanks... I'll try to be clearer.
The caps have two bolts and 2 studs each. The bolts came out no problem, but the nuts on the studs brought out the whole stud (yes, all of them) rather than the nut backing off.
Since the nut didn't move on the stud I wondered if I could reasonably replace it and torque it back down just like a bolt.
I don't want to damage the studs trying to get the nuts off of them, and I'd have to rework the threads if I get new bolts/studs. I'm just wanting to keep it simple but wasn't sure reusing the stud that way would torque properly.
From your reply it seems you wouldn't support reusing the studs unless the nuts are removed first. Processing it in my head I wasn't certain it would make a difference but wanted to ask first.
Old 05-05-2016, 10:20 PM
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Lol. The "stud" is one piece. The "nut" doesn't come off.
Old 05-05-2016, 10:35 PM
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Well I guess that would explain my situation!
What is the point of that design?
Old 05-06-2016, 12:39 AM
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Originally Posted by Jimbo_22
Well I guess that would explain my situation!
What is the point of that design?
For something to mount the windage tray to.
Old 05-06-2016, 12:44 AM
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Oh that's right... The tray was in there.

I hadn't even looked that closely at the studs to realize they are one piece. Been busy with the crank.

I'd rather feel silly about it than spend money where I don't need to! Thanks for pointing it out ☺
Old 05-06-2016, 08:36 AM
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Yup, factory "bolts"...



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