Exhaust leak at the manifold on 1982 E320zx
#26
i understand the process of the coolant and the fact that obviously its hotter the closer you get to the firewall... but what i dont understand is why 280zx2by2 thinks that since the back bolt broke off the front one under the thermostat housing is broken off to...
#27
now if only its70 would just take off the thermostat housing and prove me right...
#30
^^^ Thanks I guess I still have a bit to learn about Z cars, As well my Camaro exhaust NEVER got that hot @.@ And yes infrared thermometer... Um Does lowes have them? lol Idk where I can get one
Sorry for OT posts, please continue
Sorry for OT posts, please continue
#31
underneath the thermostat housing will be exposed the excessive heat i do agree... but as far as goin from hot to cold and back again i do not agree... under the thermostat housing will not go from hot to cold any faster than the rest of the engine... as soon as the engine heats enough to need the coolant thats the first part of the engine it goes to... in my opinion the closest to the very back of the engine (closest to the firewall) will be the most susceptible spot to get hot... as far as heat goes to rusting a bolt... its moisture that rusts... not heat... heat just helps evaporate....
#32
#33
#34
Alright I have a bunch of questions, thanks in Advice for any help or info.
1) If I have to take the intake and exhaust manifolds off to do this repair should I just change all of the studs while I have it apart, or would that be a waste of time and $$?
2) Besides, stud, intake gasket, and exhaust gaskets would I need any other parts to perform this task?
3) Is there any other areas I should check while I have all of this crap off the motor that is related or not related to this problem, that is accessible only when this stuff is off?
4) Will the Exhaust manifold need any machining or will it bolt back down with out being warped?
5) Would a header be a good idea, how much better are headers over the stock set up? Pros and Cons of header over manifold?
5) Will I need and specialty tools for any part of the teardown?
6) How long has it taken you guys on your first time removing this stuff?
1) If I have to take the intake and exhaust manifolds off to do this repair should I just change all of the studs while I have it apart, or would that be a waste of time and $$?
2) Besides, stud, intake gasket, and exhaust gaskets would I need any other parts to perform this task?
3) Is there any other areas I should check while I have all of this crap off the motor that is related or not related to this problem, that is accessible only when this stuff is off?
4) Will the Exhaust manifold need any machining or will it bolt back down with out being warped?
5) Would a header be a good idea, how much better are headers over the stock set up? Pros and Cons of header over manifold?
5) Will I need and specialty tools for any part of the teardown?
6) How long has it taken you guys on your first time removing this stuff?
#35
Have you seen this yet? https://www.zdriver.com/forums/240z-280zxt-s30-s130-tech-tips-275/how-do-your-intake-exhaust-gasket-18779/
Alright I have a bunch of questions, thanks in Advice for any help or info.
1) If I have to take the intake and exhaust manifolds off to do this repair should I just change all of the studs while I have it apart, or would that be a waste of time and $$?
2) Besides, stud, intake gasket, and exhaust gaskets would I need any other parts to perform this task?
3) Is there any other areas I should check while I have all of this crap off the motor that is related or not related to this problem, that is accessible only when this stuff is off?
4) Will the Exhaust manifold need any machining or will it bolt back down with out being warped?
5) Would a header be a good idea, how much better are headers over the stock set up? Pros and Cons of header over manifold?
5) Will I need and specialty tools for any part of the teardown?
6) How long has it taken you guys on your first time removing this stuff?
1) If I have to take the intake and exhaust manifolds off to do this repair should I just change all of the studs while I have it apart, or would that be a waste of time and $$?
2) Besides, stud, intake gasket, and exhaust gaskets would I need any other parts to perform this task?
3) Is there any other areas I should check while I have all of this crap off the motor that is related or not related to this problem, that is accessible only when this stuff is off?
4) Will the Exhaust manifold need any machining or will it bolt back down with out being warped?
5) Would a header be a good idea, how much better are headers over the stock set up? Pros and Cons of header over manifold?
5) Will I need and specialty tools for any part of the teardown?
6) How long has it taken you guys on your first time removing this stuff?
#36
Doing this my first time took me a long time. Primarily because I couldn't get the bolts for the heatshield off. I went retarded and ended up tightening some of them when I should have been loosening and then couldn't remove them. So it was really hard to see where the mounting bolts were. I had to find them and undo them just simply by feel. If you get the heatshield off the intake manifold this project becomes ridiculously easy. I just pulled apart the intake/exhaust manifolds on my 76' 280Z the other day. Took like 20 minutes because I took the heatshield off first.
You will need the intake/exhaust manifold gasket. Get the Beck/Arnley gasket from Rockauto.com You're going to want to get new studs definitely. You'll probably want to order them soon so you'll have them as it might take a little while as he has to make them and doesn't always have a set ready to go. There may possibly be a few little gaskets you might need, but you'll have to see what you need to remove. By the way if you've never changed it, I'd say see if you can get your O2 sensor out while you're at it.
You will need the intake/exhaust manifold gasket. Get the Beck/Arnley gasket from Rockauto.com You're going to want to get new studs definitely. You'll probably want to order them soon so you'll have them as it might take a little while as he has to make them and doesn't always have a set ready to go. There may possibly be a few little gaskets you might need, but you'll have to see what you need to remove. By the way if you've never changed it, I'd say see if you can get your O2 sensor out while you're at it.
#37
I have an exhaust leak as well that I'm preparing to fix (that ever popluar rear header bolt). I replaced the first one with a nissan gasket when doing the head gasket. Is the Beck/Arnley on the same quality level as the nissan gasket?
#38
Does anyone have a link to where I can buy an exaust manafold stud online?
I found this at Rockauto, would it be the one I need?
1983 NISSAN 280ZX 2.8L 2753cc L6 MFI (H) [L28E] SOHC : Exhaust : Exhaust Bolt / Spring Wiki Price
DORMAN Part # 03104 Size M10-1.50 x 52mm
Front
$3.38
Add to Cart
The Zstore has a hole set. Do I need to replace them all or just the broken one?
http://www.thezstore.com/page/TZS/PROD/PEC03/15-8081
Manifold Bolt, Nut & Stud Kit, *75-83 280Z/ZX
Quantity in Basket:none
Code: 15-8081
Price:$19.95
I found this at Rockauto, would it be the one I need?
1983 NISSAN 280ZX 2.8L 2753cc L6 MFI (H) [L28E] SOHC : Exhaust : Exhaust Bolt / Spring Wiki Price
DORMAN Part # 03104 Size M10-1.50 x 52mm
Front
$3.38
Add to Cart
The Zstore has a hole set. Do I need to replace them all or just the broken one?
http://www.thezstore.com/page/TZS/PROD/PEC03/15-8081
Manifold Bolt, Nut & Stud Kit, *75-83 280Z/ZX
Quantity in Basket:none
Code: 15-8081
Price:$19.95
Last edited by lts70; 11-02-2010 at 12:01 PM.
#39
Does anyone have a link to where I can buy an exaust manafold stud online?
I found this at Rockauto, would it be the one I need?
1983 NISSAN 280ZX 2.8L 2753cc L6 MFI (H) [L28E] SOHC : Exhaust : Exhaust Bolt / Spring Wiki Price
DORMAN Part # 03104 Size M10-1.50 x 52mm
Front
$3.38
Add to Cart
The Zstore has a hole set. Do I need to replace them all or just the broken one?
http://www.thezstore.com/page/TZS/PROD/PEC03/15-8081
Manifold Bolt, Nut & Stud Kit, *75-83 280Z/ZX
Quantity in Basket:none
Code: 15-8081
Price:$19.95
I found this at Rockauto, would it be the one I need?
1983 NISSAN 280ZX 2.8L 2753cc L6 MFI (H) [L28E] SOHC : Exhaust : Exhaust Bolt / Spring Wiki Price
DORMAN Part # 03104 Size M10-1.50 x 52mm
Front
$3.38
Add to Cart
The Zstore has a hole set. Do I need to replace them all or just the broken one?
http://www.thezstore.com/page/TZS/PROD/PEC03/15-8081
Manifold Bolt, Nut & Stud Kit, *75-83 280Z/ZX
Quantity in Basket:none
Code: 15-8081
Price:$19.95
It is not too hard of a job, once you get the broken bolt extracted. Good luck man, and keep us posted.
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