Subtopic	Posts		Updated
	Gas	2		05/15 03:43am

By John Graham (John) on Monday, May 14, 2001 - 02:21 pm: Edit

I have read through the Discoweb history looking for information on headers for a '97 disco I, and I cannot find much information. I have just identified a crack in my drivers side exhaust manifold and my '97 is out of warranty. This makes the second manifold to crack (passenger side cracked while under warranty). I figure it is time to look for an alternative, but I have to remain 'US emissions legal' (not for California). Has anyone installed headers and still utilized catalytic converters ? I have not been able to find much information on the web, any help would be appreciated.
John

By Ron on Monday, May 14, 2001 - 02:30 pm: Edit

John,

Have the crack welded. Cheap and it will last a good long while.

Cheers
Ron

By wisker on Monday, May 14, 2001 - 03:10 pm: Edit

Here's a thought . . .
The 3.9 is based off an old buick block if I remember right. Did the exhaust port location change when rover started producing it? How about the stud location. Finding headers for a buick (at least in the states) should prove easier than locating rover headers. Compared to most there's actually quite a bit of room down there so I'm thinking standard "shorty's" should fit. Someone posted the entire history of this motor before. Hopefully they will respond to this.

wisker

By John C. on Monday, May 14, 2001 - 03:26 pm: Edit

Here is the link but I've heard that it isn't that easy to get the parts here in the US:

http://www.colonialrovers.com/links/links.html#c10

By John Graham (John) on Monday, May 14, 2001 - 04:28 pm: Edit

Ron - good advice, never really thought about welding it :-)
John C. - thanks for the link, but I cannot identify the supplier you are suggesting. Can you repost with a direct link to the pages you are pointing out ? Thanks....

By dave on Monday, May 14, 2001 - 05:32 pm: Edit

I am not sure what new stock manifolds cost, but I doubt you could find quality headers cheaper. Plus, the stock manifolds are pretty well designed...your not going to gain anything with the headers.

Have you checked with any used parts suppliers? You could probably scare up a set of exhaust manifolds pretty cheap.

By Rudd Thabes on Monday, May 14, 2001 - 08:49 pm: Edit

My dealer quoted me a price of about $180US for right exhaust manifold for my 97 Disco. I've seen the price range of $60 to $100 on this site.

I'm going to get mine welded. It can be done without removing the manifold

By RVR OVR (Tom) on Monday, May 14, 2001 - 11:17 pm: Edit

Ron,

Are you positive it can be welded? I have heard "nope" on that one.

Tom

By RVR OVR (Tom) on Monday, May 14, 2001 - 11:20 pm: Edit

I wonder who will get to this first...found it on lrx.com...

land rover parts
I Have Disco II front springs brand new. $50.00, A pair of 3.9 Heads in good condition $200.00. Range Rover Classic rear 1/4 Glass $30.00. L/R exhaust Manifolds $50.00each. 2 D-90 A-frame brush bars $60.00each.

Chris Halloran
Boston, Massachusetts, United States of America - 2 May 2001

By RVR OVR (Tom) on Monday, May 14, 2001 - 11:26 pm: Edit

darn...the email address didn't show up on that...sorry. here it is.

[email protected]

By Ron on Tuesday, May 15, 2001 - 09:05 am: Edit

Well the one on the rangie was welded at least a year ago (guy I bought it from had it that long and said it must have been that way when he got it) and it does not leak now. It was a big crack too. That is the most I can say other than make sure you get someone who really knows what they are doing as it is supposedly tricky to make work.

Ron

By John Graham (John) on Tuesday, May 15, 2001 - 09:23 am: Edit

Thanks for all the information. I may see about getting my manifold welded, though I will have to remove it, as the crack is on the back side.
I did contact, RPi, Rimmer Brothers, and NRP to see if they offer a set of headers that are compatible with the emissions components. RPi has responded, with a no. I'll update once I hear back from Rimmer Brothers and NRP.
The information link above on the Rover V8 looks very interesting.....but I still have not been able to find the exact link John C. was pointing too.
I know I can simply replace with a factory part, but that does not always seem to produce the best result available. Now that I have had both left and right manifolds crack within 55,000 miles, I'll be replacing them a few time in the next several years. I had hoped to find a better solution. Thanks again, John

By Ron on Tuesday, May 15, 2001 - 09:30 am: Edit

While your down there check the engine mounts. Just a hunch.

Ron

By John Graham (John) on Sunday, May 20, 2001 - 03:57 pm: Edit

Well, still no better alternative than the stock exhaust manifold for NAS emissions legal vehicles. I am still very interested in anyone with a solution (i.e. headers, tubular manifold, etc). So let me know.
Ron - thanks for the hint about the engine mount, I certainly will take a good look at them.