Hartspank Posted November 11, 2006 Share Posted November 11, 2006 Hey guys, I've got a broken exhaust stud on my 82 zx na. So I figured if I have to take the intake and exaust manifolds off I might as well add a header. This is my first time tearing into the Datsun and it looks like a real pain! Does anybody have any helpful tips, or time saving tricks? Quote Link to comment Share on other sites More sharing options...
Hartspank Posted November 11, 2006 Author Share Posted November 11, 2006 just getting started on it,do I need to pull the fuel rail off? Kinda looks that way. Quote Link to comment Share on other sites More sharing options...
mom'sZ Posted November 11, 2006 Share Posted November 11, 2006 Careful removing the busted off stud. I bet it's on the end right? Quote Link to comment Share on other sites More sharing options...
Hartspank Posted November 11, 2006 Author Share Posted November 11, 2006 Yes it is and its busted off flush. still working on removing intake! not fun Quote Link to comment Share on other sites More sharing options...
mom'sZ Posted November 11, 2006 Share Posted November 11, 2006 yup, the exhaust manifolds warp and it breaks the end stud, usually flush with the head, like you said. Don't make matter worse by busting an ez-out off in the head. Then yer sunk. Use a center punch to start a place to drill it out. An old trick is to get a counter-clockwise drill bit. take it slow, don't get frustrated. Last one I did, I could not get to come out and ended up having to do a heli-coil on it. Oddly, the rinky-dink auto parts joint had 8mm heli-coils. Edit: dude.... how do you pronounce the name of that town you live in? holy cow... Quote Link to comment Share on other sites More sharing options...
Hartspank Posted November 11, 2006 Author Share Posted November 11, 2006 Thanks for the advice I'll try not to f it up. Quote Link to comment Share on other sites More sharing options...
Hartspank Posted November 11, 2006 Author Share Posted November 11, 2006 This is nuts! how the hell are you supposed to loosen the nuts on the underside of the manifold? good luck on the town name it's pretty entertaining hearing telemarketers stumble through it. Quote Link to comment Share on other sites More sharing options...
Jolane Posted November 11, 2006 Share Posted November 11, 2006 I did the front and rear studs on my 280ZX once. Yes, it was a lot of work. I found that having several different lengths of 3/8" extensions along with at least one universal joint allows you to get several of the bolts under the intake. Then, you will need a 12 point wrench to get at the rear one (IIRC). I can also highly recommend that you get a wobble drive extension, and both short and long sockets. It is not trivial, but very doable. I was 'unlucky' enough to break a TAP off in the hole. I thought I had drilled the bold bolt out completely, but I hadn't, and a piece of the steel inside caught and broke my tap off. That was misery, but I was able to pound on the tap and break it into pieces, and remove the piece. It took several days of work. As a replacement, I used the next larger stud size, since the hole was buggered. A keensert would have been better. Good luck on your project, I feel for you! Joshua Quote Link to comment Share on other sites More sharing options...
george.bryant Posted November 11, 2006 Share Posted November 11, 2006 Its easy getting the manifolds off u jsut need a bunch of different extentions. That heat shield thing can be annoying to work aroudn so rip it off. Quote Link to comment Share on other sites More sharing options...
Hartspank Posted November 11, 2006 Author Share Posted November 11, 2006 Finally got it!! After wrestling with the rusted rounded bolts on the heat shields it was a piece of cake. I am now wiser with the ways of the Z, It was a great learning experience. Quote Link to comment Share on other sites More sharing options...
george.bryant Posted November 12, 2006 Share Posted November 12, 2006 It is isn't it. Now the fun bit to get the fuel rail swung over if you havnt done so yet... Quote Link to comment Share on other sites More sharing options...
trwebb26 Posted November 12, 2006 Share Posted November 12, 2006 follow mom'sz advice. I've broken so many ez-outs off in my Z... They'll never touch it again! Quote Link to comment Share on other sites More sharing options...
Nathaust Posted November 12, 2006 Share Posted November 12, 2006 I agree with the easy outs being anything but on the Z, I broke 2 trying to get the broken bolts on my exhaust manifold/heat shield out. It is almost a art getting the intake off and on with all the heat shields in place. Most people ditch them, I kept mine. I guess I'm just masochistic. I'm getting have way decent at getting the bottom bolts now. Quote Link to comment Share on other sites More sharing options...
Nathaust Posted November 12, 2006 Share Posted November 12, 2006 Well mines a turbo manifold but I'm sure the NA version is just as hard. Damn non cross flow head, look at all the room on the other side. Quote Link to comment Share on other sites More sharing options...
rztmartini Posted November 14, 2006 Share Posted November 14, 2006 over the last couple months i think ive taken off manifolds off of atleast 5 heads. i just used the long and short extension for the 3/8 drive and i now have partly memorized the bolt pattern down there lol. btw...do you have to get those thick ass washers from nissan? Quote Link to comment Share on other sites More sharing options...
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