2.5 lima exhaust manifold help!

[anchoredinchrist]

I have a 1998 ranger with somewhere around 200k miles and my exhaust manifold cracked. No big deal, huh? Well... I started looking and it appears that nobody makes them! I only saw one used one on eBay, and they wanted $200 shipping! My question is, where can I get one? I heard mention of the 93-97 ranger 2.3 engine will work, but can't even find that. What I did find is a Dorman 674-230 which is for a 1992 and older ranger 2.3 and 2.0. Will that one work for the 2.5?

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[sheltonfilms]

Here is my post from years back. Talk about the differences. I think the older cast manifolds have different ports (round vs D).

http://www.fordrangerforum.com/4-cylinder-tech/108087-exhaust-manifold-difference.html




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[tinman_72]

When I swapped a '98 2.5 in to my '93 that had 2.3 I used the original 2.3 tubular style manifold with no issues.

 

[anchoredinchrist]

The link didn't work.

Here is my post from years back. Talk about the differences. I think the older cast manifolds have different ports (round vs D).

http://www.fordrangerforum.com/4-cylinder-tech/108087-exhaust-manifold-difference.html




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[anchoredinchrist]

When I swapped a '98 2.5 in to my '93 that had 2.3 I used the original 2.3 tubular style manifold with no issues.

Will it work the other way? And how about the pre 93 manifold? Main thing I'm thinking is the egr port.

 

[sheltonfilms]

The link didn't work.

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Works fine on 2 different computers.

 

[anchoredinchrist]

Works fine on 2 different computers.

Maybe I'll have to open it on a computer then. I have tapatalk in my phone.

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[anchoredinchrist]

Got it to open now.

Works fine on 2 different computers.

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[tomw]

sheltonfilms.. just went and looked at your post re exhaust manifolds.

I think the tubes welded to the flange help keep the flange straight as the bolt inside will act as a longer lever to prevent warping. Bolt captured will stay straight when temp changes, and the 'tube' will stay parallel to the bolt shank, and keep the flange evenly applied/torqued to the cylinder head. Well, it was a guess anyway.
Did you notice any difference with the tube manifold, compared to the cast?

I am pretty sure from readings that the manifolds should bolt up across all years. As I understand, the cylinder heads changed the valve stem diameter, and perhaps the diameter over time, but the casting remained the same. Same casting implies same outlet/exhaust port shape.
tom

 

[tinman_72]

Will it work the other way? And how about the pre 93 manifold? Main thing I'm thinking is the egr port.

I don't think you need it to work the other way. You want to put a '93 manifold on a '98 2.5, right? That is exactly what I did. The only issue is that I don't think the tubular manifold has the provisions for the hoses that run to the DPFE.
I have no experience with '92 and older manifolds.

 

[anchoredinchrist]

I just found a place I can get the original type one for $30. It's a guy who specializes in Ford rangers and has a ranger parts yard. Now to find time to go get it. :-D

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[poondobber]

It took me a while to find one. I found one about 45min away at a junkyard and when I got there it was the wrong year. The second one I found through an online junk yard and asked for pics before they shipped it.

Mine was rusted to hell and there was one bolt/stud that I could not get out of the head. Even with a torch and easy out I could not get it to budge. So I left it in and im just running with 7 bolts.

Recommendation. Chase all the threads with a tap before assembling. This includes in the head and the bolt holes for the cat. Use some anti-seize to reassemble. I also painted mine to help keep the rust down later.

 

[anchoredinchrist]

Yeah, it took me a while too. But thankfully a friend told me about this local parts guy who specializes in rangers. I called him and he had one sitting on the shelf. I'm redoing the head, all new valves, lifters, springs, seals etc, and I'll be chasing all the threads.

It took me a while to find one. I found one about 45min away at a junkyard and when I got there it was the wrong year. The second one I found through an online junk yard and asked for pics before they shipped it.

Mine was rusted to hell and there was one bolt/stud that I could not get out of the head. Even with a torch and easy out I could not get it to budge. So I left it in and im just running with 7 bolts.

Recommendation. Chase all the threads with a tap before assembling. This includes in the head and the bolt holes for the cat. Use some anti-seize to reassemble. I also painted mine to help keep the rust down later.

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