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-   -   4.7L Manifold bolts (http://www.jeepgarage.org/f77/4-7l-manifold-bolts-1153.html)

sanitarium16 07-04-2009 02:40 PM

4.7L Manifold bolts
 
I have the common 4.7L manifold leak/tick. I dont want to replace the manifold bolts with the garbage stock ones. What bolts can i used that will maintain the stock heat sheilds and will last long? Any links to stainless steel bolts?

Scottina06 07-04-2009 03:04 PM

Re: 4.7L Manifold bolts
 
I will look in to this and get back to ya. I personally dont have it on my 06 4.7.....so i havent looked into it. What year is your 4.7?

AcidCold 07-04-2009 04:39 PM

Re: 4.7L Manifold bolts
 
I have had that issue for about 2 yrs, it is annoying but it looks like a pita to do so i just left it alone till it gets very bad. Stainless might hold better that our stock made in taiwan bolts we have.

robpp 07-04-2009 05:54 PM

Re: 4.7L Manifold bolts
 
A good hard bolt is grade 8 but you can get stronger. 8.8

hate to do this....but on JU is a post about doing the job and I think he tells you the bolt/stud sizes you need

here are some SS
http://www.boltdepot.com/dimension.aspx?cc=6&cs=7&cm=6

scjeep4.7HO 07-04-2009 06:01 PM

Re: 4.7L Manifold bolts
 
If you can find out the size check out fastenal.com

sanitarium16 07-04-2009 07:48 PM

Re: 4.7L Manifold bolts
 
Its a 2007 JGC Laredo. Do you have that link on JU to the sizes?

Raymond 07-04-2009 08:51 PM

Re: 4.7L Manifold bolts
 
Quote:

Originally Posted by sanitarium16 (Post 27919)
Its a 2007 JGC Laredo. Do you have that link on JU to the sizes?





http://www.jeepgarage.org/f187/wk-4-7l-drivers-side-exhaust-manifold-and-gasket-replacement-writeup-w-pics-1158.html

dreamer1213 07-05-2009 12:31 PM

Re: 4.7L Manifold bolts
 
Wow...thats crazy that you already have a leak on a Jeep that's so young....but I guess anything is possible...

sanitarium16 07-05-2009 12:39 PM

Re: 4.7L Manifold bolts
 
Quote:

Originally Posted by dreamer1213 (Post 28103)
Wow...thats crazy that you already have a leak on a Jeep that's so young....but I guess anything is possible...


It a jeep thing...

scjeep4.7HO 07-05-2009 12:41 PM

Re: 4.7L Manifold bolts
 
Yea considering what I have put mine through.

NHWK05 07-05-2009 04:58 PM

Re: 4.7L Manifold bolts
 
Damn that is pretty young. I dont really now what to look for but my 05 4.7 with 60k seems to be ok. No ticking and i dont hear a leak, my old xj had a cracked exh manifold (like all 4.0's) If this happens to mine though i am just gonna get headers done.

Lifted_up 07-14-2009 01:32 AM

Re: 4.7L Manifold bolts
 
I had an exhaust leak on the driver side manifold too. One of the bolt heads had broken off so I had to remove all the wiring out of the way from the top side in the engine bay for better access and I also removed the plastic in the fender well to give me access to the lower rear bolts. I then removed all the bolts and then the exhaust manifold. This left the broken bolt still in the engine. Just got some pliers and unscrewed it and replaced it with a grade 8.8 bolt. Messed up thing is that the bolt head ended up breaking again and it was the one I had replaced. I ended up using Grade 10.8 bolts and everything is still fine. Was able to put the heat shield back on with some of the stock bolts. Some had broke so I wasn't able to mount it exactly like stock. Sorry but don't remember the sizes. :( If you plan on doing it yourself, once you get one of the bolts out, take it to the parts store and size it. That's what I had to do. :)


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