I own a 98 and my header has cracked. Does anyone know if I can JB weld it to get by for a while until I have the cash to buy a new header. The one I want is the Banks header. Is that the best I can get or does anyone else recommend something different. Also how difficult it is to remove and install the new header. Any help would be appreciated.
I just replaced my cracked exhaust manifold on my '97 TJ with a header from pace-setter (it was $200 for the new header).
In my opinion there is no need to spend $500+ on a Borla exhaust. In fact (in my opinion) there is no need to purchase a chrome/polished exhaust for an extra several hundred dollars when the black headers (most companies sell a plain black version) are the same design and function just as good as chrome/polished headers. Also on our jeeps you can't even see the header, it's obstructed from nearly every angle you look at it. -Go for function it will be less $$ than the chrome/polished headers.
-It took me 6 hours to install my header on my '97 tj. the install would have taken about 4 hours had I been given a few tips (which I'll give to you)!
I removed all the intake manifold bolts, the manifold is now free to allow the exhaust manifold to come out. The intake manifold is still connected by some wiring which I did not feel comfortable removing... but it was free enough that I could move it enough to get the exhaust manifold out.
the old manifold is out and laying side by side with the new header. Notice the design differences.
It took me about 4 hours to get to this point.
(one hour was spent trying to figure out how to remove the bolts from the outlet of the stock exhaust manifold. I realized after an hour that the bolt heads were welded at the factory to the stock manifold... (see the bolts on the stock manifold in the picture below). ...all I had to do was loosent the nuts and the stock exhaust was free).
after cleaning the head where the old gasket was (with some light sand paper) I put a new gasket on the head (not shown in this photos) and wiggled the new header into position. This wiggle process took about 45 minutes and would have only taken 15 minutes had I had a partner to hold the intake manifold up while I positioned the new header... however I had to do this alone and balane both parts.. one in each hand!
..after this I tightened all parts (using the correct tightenting sequence per spec) and put all the parts I took off back. Then took for a test drive... it's now very quite and feels like it has more power than w/ the previous exhaust manifold. The total job cost me just under $200 (for the header) and about 6 hours of labor. -If I did this again on a jeep it would take me about 4 hours. (every car/truck has their own set of issues when replacing things, etc..).
anyway, hope this helps. I'd say this is an intermediate level job for someone with a certain amount of comfort and experience fixing/replacing things on their car.
Check out my post in this thread "installing borla headers". I give a description of my encounter. I have since put on a V Force muffler and it sounds good a low RPM but at midrange and higher sounds a bit like an import. I think the V Force is about the same as the Flowmaster 40. '98 will be slightly different than a '97.
I have never heard of a successful repair of a header.
Without the expansion joints....that new one youll be putting will be cracking the same way. Spend your money once.
What are these expansion joints you refer to? I've seen a LOT of different types of headers for a ton of different vehicles, I've never heard of the term 'expansion joints' for a header before.
I checked the site that I'm 'assuming' has these 'expansion joints' (upper left hand corner of the forum) and I didn't find that term anywhere on their site. Please advise...
As a side note:
I've had a Borla header on mine for 4 years now, no problems in to date, except the Y-pipe bolts tend to vibrate loose #!$%@#$%...other than that, I have no complaints, next time I'm under there I plan on getting new hardware and using some serviceable thread lock, that should cure that!