Help with exhaust manifold flange gasket. Please

kade

Well-known member
Oct 15, 2013
223
5
Upstate, SC
I searched but no infor on this gasket I could see.

2000 D2 4.0.

So guys I’ve located a exhaust leak on the passenger side exhaust manifold flange where it attaches to the down pipe.

I ordered the gaskets and attempted to remove the studs tonight. I got one out but the other just had the nut come off. I assume I can get the other stud out tomorrow with pliers or vice grips to start loosing it. BUT.... I have some questions

I had a hard time tightening the side I got ou whenreplacing it. It kept wanting to back out.

Any tricks on getting these studs to go in and tighten up properly?

Really any useful info regarding this swap would be appreciated
 

kade

Well-known member
Oct 15, 2013
223
5
Upstate, SC
I can’t change the gasket without taking the studs out right? It’s the little studs that are threaded on both ends. One end screws the two pieces together and the other end allows the nut to snug them up I guess.

It’s where the manifold meets the y pipe

I tried again yesterday after spraying the stud a couple of Times. But no dice.

I guess I should order replacement studs and just prepare for battle on the rogue one.
 

jymmiejamz

Well-known member
Callsign: KN4JHI
Dec 5, 2004
5,439
34
31
Los Angeles, Ca
There is no need to replace the studs unless they are broken.

Remove the six downpipe nuts and you can lower the downpipe enough to replace the gaskets. You can use a light dab of grease or RTV to hold it in place while you reinstall everything (it will smoke a lot as it burns off).
 
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Jan 14, 2018
23
2
Fall City
There is no need to remove, however, if you need to remove or replace them...use two nuts and put them on the stud and tighten the nuts against each other. use the bottom nut to tighten stud and the upper nut to loosen stud

I had to replace mine because they snapped off when trying to remove the flange nuts.
 

kade

Well-known member
Oct 15, 2013
223
5
Upstate, SC
Thanks guys.

I’ll report back if I can’t get it changed.

There is only two nuts where the gasket is. I’ll look for the six bolts you speak of and try to do it that way.
 

fishEH

Well-known member
Jan 26, 2009
6,403
23
Lake Villa, IL
Are we betting how many studs shear off? :ROFLMAO:
Use an impact and zip the nuts off. My guess is you'll shear two, walk two studs out, and get two nuts off.
 
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Sigh.

Any more, I just expect to shear them all off and plan for it.

My mill is just barely big enough to fit an exhaust manifold on the table to allow me mill the broken stud out and fly cut the mating surface true.

If new manifolds didn't cost an arm, a leg and a house payment, I wouldn't bother.


If you need head to manifold gaskets, I have them in stock, but beware, exhaust manifold bolts is how I got really good at installing heli-coils LOL