I'm confused about how these manifold to turbo studs are supposed to work.
#1
Senior Member
Thread Starter
iTrader: (4)
Join Date: Jul 2006
Location: Shelton, CT
Posts: 675
Total Cats: 2
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I'm a dumbass and I'm also wary of messing something up so here we go.
For one thing, I'm assuming the things go into the manifold like this, with the short end down.
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/94089-im-confused-about-how-these-manifold-turbo-studs-supposed-work-b9bbbeef-161d-4cce-9ab9-5143beaf21fe-1603-00000299002cdeb9_zps97d6c7ee.jpg?dateline=1383778092)
Whenever I've tightened down a stud usually you throw one nut on top of another and ratchet them both down to tighten the thing.
Well, I have the nuts, but it seems like they have a distinct oval shape at the top which makes tightening them over the studs a bit difficult to the point where I'm a little wary of doing so since it is very difficult to get them over the stud.
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/94090-im-confused-about-how-these-manifold-turbo-studs-supposed-work-302b0e24-39ba-4f0f-807f-1bbc67ab72ee-1603-000002990cea448c_zps6be54318.jpg?dateline=1383778092)
Am I doing something wrong here? Should I get some different nuts? Am I messing up which direction the studs go in?
For one thing, I'm assuming the things go into the manifold like this, with the short end down.
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/94089-im-confused-about-how-these-manifold-turbo-studs-supposed-work-b9bbbeef-161d-4cce-9ab9-5143beaf21fe-1603-00000299002cdeb9_zps97d6c7ee.jpg?dateline=1383778092)
Whenever I've tightened down a stud usually you throw one nut on top of another and ratchet them both down to tighten the thing.
Well, I have the nuts, but it seems like they have a distinct oval shape at the top which makes tightening them over the studs a bit difficult to the point where I'm a little wary of doing so since it is very difficult to get them over the stud.
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/94090-im-confused-about-how-these-manifold-turbo-studs-supposed-work-302b0e24-39ba-4f0f-807f-1bbc67ab72ee-1603-000002990cea448c_zps6be54318.jpg?dateline=1383778092)
Am I doing something wrong here? Should I get some different nuts? Am I messing up which direction the studs go in?
#3
Senior Member
Thread Starter
iTrader: (4)
Join Date: Jul 2006
Location: Shelton, CT
Posts: 675
Total Cats: 2
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Hm, the regular nut makes sense and is what I was thinking I'd need to do.
Also, I'm assuming I'm putting the stud in the manifold the right way. Once the stud is in the manifold do I just throw the turbo on and crank the locking nut down over it? There is a fair amount of thread sticking up even after putting the turbo over it.
I swear I realize this sounds dumb as hell and it should be obvious, but the manifold and turbo were connected when I got them the first time around so I never needed to deal with this.
Also, I'm assuming I'm putting the stud in the manifold the right way. Once the stud is in the manifold do I just throw the turbo on and crank the locking nut down over it? There is a fair amount of thread sticking up even after putting the turbo over it.
I swear I realize this sounds dumb as hell and it should be obvious, but the manifold and turbo were connected when I got them the first time around so I never needed to deal with this.
#5
Senior Member
Thread Starter
iTrader: (4)
Join Date: Jul 2006
Location: Shelton, CT
Posts: 675
Total Cats: 2
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Alright. I guess I was mostly just worried since there is so much torque that needs to be applied to the locking nuts, but now that I'm thinking about it more that makes perfecct sense.
#11
Elite Member
![](/mt2011/images_td/ranks/supporter1.gif)
iTrader: (5)
Join Date: Oct 2011
Location: Detroit (the part with no rules or laws)
Posts: 5,683
Total Cats: 805
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
My engine builder had a set of something like that to install various sorts of studs... Couldn't tell you exactly, but whatever it was he was using it to put studs on.
Also, not a nylon nut.lol It would be pretty pointless because it's going to get very hot.
Also, not a nylon nut.lol It would be pretty pointless because it's going to get very hot.
#13
Senior Member
Thread Starter
iTrader: (4)
Join Date: Jul 2006
Location: Shelton, CT
Posts: 675
Total Cats: 2
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Well, I have the studs in the manifold and I realized I didn't have a 15mm open ended wrench for some reason. Everything from 14mm down and 16mm up, but for some reason 15 is missing so I couldn't really fully tighten down the nuts. Gonna hit the store to get something and then get the manifold and turbo on the car tonight.
#15
Senior Member
Thread Starter
iTrader: (4)
Join Date: Jul 2006
Location: Shelton, CT
Posts: 675
Total Cats: 2
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
That's interesting. Hand tight doesn't get them very far into the manifold. I mean, far enough I suppose. It goes a lot farther in than in that picture, that's just slightly screwed in to show it.