Exhaust Manifold - Page 2 - JeepForum.com

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post #16 of 32 Old 06-17-2013, 06:14 PM Thread Starter
JeepMonkey
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Quote:
Originally Posted by walkerhoundvm
You shouldn't have to remove the power steering pump. At least I didn't.

Sheesh, you are new
In order to remove the intake manifold you have to remove the ps pump.

Sorry, I should have clarified. I'm taking both off.

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post #17 of 32 Old 06-17-2013, 06:18 PM
skizriz
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I've replaced both my intake and exhaust, had them both off multiple times, and have never removed the PS pump either.

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post #18 of 32 Old 06-17-2013, 06:46 PM
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I think it may make it a bit easier to install the intake, but it's a trade-off. I would tend to think it's harder to remove/replace the PS pump than it is to try to reinstall the intake without removing the pump.

As I said earlier - this job is a frustrating one
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post #19 of 32 Old 06-17-2013, 07:19 PM Thread Starter
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Quote:
Originally Posted by walkerhoundvm
I think it may make it a bit easier to install the intake, but it's a trade-off. I would tend to think it's harder to remove/replace the PS pump than it is to try to reinstall the intake without removing the pump.

As I said earlier - this job is a frustrating one
I'm with you now. I may just leave it attached during the removal if that is optional. Thanks for the tip.
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post #20 of 32 Old 06-18-2013, 11:12 AM
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Take the bolt loose from the pump yo the manifold, and you may have to just loosen the bolts to the pump for that bracket (I think that one is a thin piece of steel bolted to the cast mounting bracket or something) and leave the rest of the pump alone. You want that loosened up just enough so you don't have to fight against it to align the mounting holes for the manifolds.

Rick

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post #21 of 32 Old 06-18-2013, 11:18 AM
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I had to loosen mine and move it a bit to get mine off and on.
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post #22 of 32 Old 06-29-2013, 09:14 PM Thread Starter
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What is this part

Quote:
Originally Posted by keith460 View Post
FYI,

Your model year Jeep did not originally have an exhaust gasket installed from the factory. There is only one for the intake manifold so that no vacuum leaks occur. You can see the difference in the thickness of the mounting tangs between the intake and exhaust manifolds. The exhaust manifold will have thicker tangs than the intake manifolds. The mounting bolts will have Bell Washers that make contact with the tangs and when a intake gasket it used only, the tangs will be flush between the two.

If you are going to use the gaskets, two MUST be used. One for the intake and another for the exhaust/intake ports like you show in your first post.

Typically, the exhaust manifold is ground perfectly flat just like the cylinder head so no gasket is needed between the two. Both the cylinder head and exhaust manifold are made of cast iron so the both expand and contract at the same rate and is another reason why no gasket is necessary. If you purchased or are using a header pipe out of steel or stainless, then yes, a gasket must be used.

I run my 84' 258 engine without the exhaust gasket, just as it came from the factory that way, and have no leaks, both vacuum and exhaust wise.

Keith or anybody,

On the diagram you posted, what is part number 25? I need a new one but I don't know what it is or what it is for. HELP?
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post #23 of 32 Old 06-29-2013, 11:02 PM
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That is the exhaust gas recirculation tube. You can sit and wait for one to show up on eBay or whatever, but your best bet is to drop about $40 at your local jeep dealership - they'll have the part as it's interchangeable with YJ parts through the late 80s. If you can zoom in on that part number or search for CJ exhaust recirculation tube, you can bring that to the dealership. Otherwise it'll take them a couple minutes to look it up for you.

Also, I found it easiest to match it up with the intake and exhaust BEFORE installing the manifolds. You might have a hard time doing that after both manifolds are installed and bolted to the head.
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post #24 of 32 Old 06-30-2013, 02:41 AM
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Quote:
Originally Posted by JeepMonkey

Keith or anybody,

On the diagram you posted, what is part number 25? I need a new one but I don't know what it is or what it is for. HELP?
I have one from an 83 cj 258. If youre interested pm me with zip and ill get u a price.
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post #25 of 32 Old 06-30-2013, 07:34 AM
keith460
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As stated, that would be the EGR Tube.

Part# J3237776 for the CJ
Part# J3241722 for the YJ

They are both the same.

.
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post #26 of 32 Old 06-30-2013, 01:04 PM
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Interesting that the same part has 2 numbers. That would put extra parts into someone's inventory...

Rick

1978 CJ5 5.0HO/T177/D300, '86 D30/D44 WT axles, 'glass body, 31x10.5 BFG A/T, TDK galv'd frame - DD and weekend toy

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post #27 of 32 Old 07-01-2013, 07:13 AM Thread Starter
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Quote:
Originally Posted by Cutlass327
Interesting that the same part has 2 numbers. That would put extra parts into someone's inventory...
Found out this morning the CJ part number has been cancelled. When you request it, it references the YJ part number in its place
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post #28 of 32 Old 07-08-2013, 02:24 PM Thread Starter
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Does anybody know where to find the heavy washers used to hold the intake and exhaust manifolds to the head. I managed to lose (err: misplace) one during my project and am not having any luck locating the part online. Any suggestions?

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post #29 of 32 Old 07-08-2013, 03:43 PM
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If memory serves, they don't make 'em anymore. I'd be curious to see what's posted up, though.
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post #30 of 32 Old 07-08-2013, 03:54 PM Thread Starter
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Quote:
Originally Posted by walkerhoundvm
If memory serves, they don't make 'em anymore. I'd be curious to see what's posted up, though.
I am afraid you are going to be correct on that one. I guess a follow up question would be:

- what alternatives are there?

I checked my local pull a part junk yard and the only AMC they had was a 64 rambler. The 258 didn't come out until '70 so I doubt that car would work as a donor.
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