Thread: Exhaust leak at lower manifold

so i've been having an exhaust leak , it looked lke ti was from the exhaust manifold to head gasket, changed it, still have an exhaust leak .

Found out it's the gasket that runs from the manifold to turbo , but i don't see any bolts.
My question is how do i remove the manifold to turbo & where can i get another gasket?

I'll try and take pics later when i get home

ok i found a pic of where this is occuring

in this pic i circled the problem area, yet in this pic there are bolts, i don't see any one mine uh oh

how is your turbo staying on the manifold if no bolts? If I recal correctly there is a nissan OEM part made for a 300zx TT that will stop this from happening. It's a little plate that stops the nuts from backing off.

I had this problem too. It was so extreme that the turbo actually came loose while driving. Instant loudness and no power. I brought it too a shop because I was too busy. I got a call from the shop owner (awesome guy Jeff at 240SXMotoring) and he had this idea to throw a tac weld on each nut after they were torqued down. It's just a tiny tac that could easily be ground off with a dremel. Hell a chisel and one swipe of a hammer would work. This was the best idea ever as I have never had to worry about this problem ever again.

so the bolts back off hhhmmm maybe that's where my problem is, i ddnt get a chance to look under it yet, but i will

Every time I have had to separate the manifold from the turbo I had to remove the whole thing from the car. Some of the bolts cant be accessed when its in the car. Regardless there should be either 4 studs with no bolts or just empty holes if they fell out but is most certainly something holding the turbo to the mani.

Yeah it's a stud/nut design. I have no idea why I said bolts. And yup the whole damn thing needs to come off to fix it.

91grayDET, when you say bolt, do you mean nut?
So the studs are there, just no nuts?

As for where to get another gasket, call Greg.
Gspec contact info

yeah i just looked again and where the exhaust leak it looks like that nut backed off

gah!!

They make the nuts that are poly insterted I guess that's what they are called and they don't come lose unless you want to take them off.

I wouldn't use those as I heard a story of the poly melting and the nuts falling off. Nissan makes an OEM plate specifically for this. I would do my guys fix or buy the right part.