4.0 tear down w/pics and questions - Page 4 - JeepForum.com
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post #46 of 67 Old 06-29-2013, 08:36 PM Thread Starter
JBrady5555
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Originally Posted by ZeeJay1997 View Post
What's the plan for this? There is a lot of info on this forum to address the problem, "how to clean valve train sludge" upper left hand corner.

I shied away from the APN because of the possibility of the problems Uni mentioned. Since you have the resources to modify it if necessary, you may be okay.

I'm still not sure what modifications you guys are talking about but if it requires grinding for clearance or something like that then I'll be okay.

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post #47 of 67 Old 06-30-2013, 04:35 AM
coralman
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Before you install it check the header gasket surface for flatness.

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Originally Posted by HighLonesome
lol...if life is as a simple as a 5.9 making you happy, I'd say go ahead and buy it on impulse. ZJs are the way of Zen. Wax on, wax off
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post #48 of 67 Old 06-30-2013, 05:21 AM
Uniblurb
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Originally Posted by JBrady5555 View Post
I'm still not sure what modifications you guys are talking about but if it requires grinding for clearance or something like that then I'll be okay.
Mainly grinding of the intake, possible too close to the motor mount, etc.. You may be ok though and which APN did you order?

Also agree with coralman on checking the flatness against the head with a straight edge beforehand.
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post #49 of 67 Old 06-30-2013, 05:43 AM
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Originally Posted by JBrady5555 View Post
What type of rtv should I use? Coat the whole back and the side edges right? Then use a big socket to hammer them in so I get a good square hit on it right? Flush to 1/16th inset correct?
I just put red RTV around the edge of the plugs, didn't see any point in putting any on the back; I used brass plugs, so they won't rust. I banged them in flush, and they're still bone-dry a year later.
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post #50 of 67 Old 06-30-2013, 10:19 AM Thread Starter
JBrady5555
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Originally Posted by Uniblurb View Post
Mainly grinding of the intake, possible too close to the motor mount, etc.. You may be ok though and which APN did you order?

Also agree with coralman on checking the flatness against the head with a straight edge beforehand.
I bought it from ineedparts.com
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post #51 of 67 Old 06-30-2013, 04:16 PM
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When you get it out of the box lay a straightedge along the flange. It took 3 I think to get a somewhat flat one.

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Originally Posted by HighLonesome
lol...if life is as a simple as a 5.9 making you happy, I'd say go ahead and buy it on impulse. ZJs are the way of Zen. Wax on, wax off
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post #52 of 67 Old 06-30-2013, 04:34 PM Thread Starter
JBrady5555
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When you get it out of the box lay a straightedge along the flange. It took 3 I think to get a somewhat flat one.
Thanks coralman I'll do it for sure.
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post #53 of 67 Old 07-07-2013, 02:38 PM Thread Starter
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Originally Posted by Uniblurb View Post
So guess you decided to pass on this one similar to OE but with bellows about 6 posts back? If you go with an APN header you better research it good so you don't end up making a bunch of alterations.

http://www.jeepforum.com/forum/f13/4...l#post15620299
Well Uni you were right, I put the header on and the intake wouldn't go back on the dowels. Ground one side of the intake and got the manifold on the dowel on that side, ground the other side to do the same thing and ended up cracking it. Just bought a used intake off of ebay, now I need to try to return this piece of crap header. Gonna go with what you recommended.
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post #54 of 67 Old 07-07-2013, 03:28 PM
coralman
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Usually the grinding is when using a wj manifold from what I've seen. Would be interested in seeing what you had to grind on a stock manifold. Too close to the mount and pan issues are common to both options.

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Originally Posted by HighLonesome
lol...if life is as a simple as a 5.9 making you happy, I'd say go ahead and buy it on impulse. ZJs are the way of Zen. Wax on, wax off
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post #55 of 67 Old 07-07-2013, 03:44 PM Thread Starter
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My intake hit the two outer exhaust pipes on each end of the block. On the front side of engine the header pipe was hitting a web on the underside of the intake, it was easy to grind off being as I wasn't grinding away any thickness of the intake airway(sorry, best I could describe it). On the rear side of the engine the intake airway was actually hitting the exhaust pipe causing the intake to sit to high where the intake wouldn't sit on the dowel. When I ground that side I couldn't get enough ground away to clear before I cracked the manifold.

I already bought the dorman exhaust manifold from advanced, they had it in stock. If I would have done this earlier, I would have the truck back together right now. Now I have to wait on my ebay payment to clear before the intake will even ship, lol. I did get the intake for 20.00 plus 14 shipping so I'm pretty happy that I got it cheap. It came off of a 98
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post #56 of 67 Old 07-07-2013, 03:47 PM
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Originally Posted by JBrady5555 View Post
Well Uni you were right, I put the header on and the intake wouldn't go back on the dowels. Ground one side of the intake and got the manifold on the dowel on that side, ground the other side to do the same thing and ended up cracking it. Just bought a used intake off of ebay, now I need to try to return this piece of crap header. Gonna go with what you recommended.
Sorry it didn't work out JBrady. If you go with the Dorman I recommended below be sure and order it online through Advance and use discount code "HUGE50". It will knock $50 off the $190 price so total will be $140 plus tax. Just ran this code through the cart and it works. Good luck.

http://shop.advanceautoparts.com/web...ntent=10711125

edit: oh well, just saw you already purchased the Dorman at Advance.
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post #57 of 67 Old 07-07-2013, 03:53 PM Thread Starter
JBrady5555
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I just picked it up a few minutes ago. I ordered online for store pickup and used the BOOM code. It got me 20 percent off. It went from 189.90 to 150 somthing plus tax. I was happy with it, I just wish I hadn't tried to "upgrade" with the apn header.
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post #58 of 67 Old 07-07-2013, 04:00 PM Thread Starter
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Anyone dealt with ineedparts.com before? Do you think they will give me crap about returning the header?
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post #59 of 67 Old 07-07-2013, 05:34 PM
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i wouldn't want to return it after grinding on it. too bad it wouldnt work.
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post #60 of 67 Old 07-07-2013, 05:36 PM Thread Starter
JBrady5555
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I didn't grind on the new header, I just ground on my intake. I'm definitely returning the apn header.
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