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Cannonball
GenI
 
1/03/2008
20:14:27
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 Subject: 4.7 exhaust mani. stud broke
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Message:
Anyone else experience a broken stud on the exhaust manifold? The drivers side upper-rear stud has broken off at the manifold. Seems like a pretty bad designed bolt just to hold the heat shield on.
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Cannonball
DakotaEnthusiast
1/03/2008
22:16:17
| RE: 4.7 exhaust mani. stud broke
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Message:
So I see from a search that this is a pretty common occurrence. Is there a source for higher quality hardware, like Grade 8. Maybe NAPA? Also has anyone just replaced the studs with bolts and left the heat shield off?
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Kedge
Dodge Dakota
JOIN HERE
1/04/2008
19:51:56
| RE: 4.7 exhaust mani. stud broke
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Message:
Yup, had two of them break. They actually don't break, they rot. And yes a grade 8 would probably work better. The stud was eroded and I did make the mechanic show me the two busted ones. We installed all new. Just tack weld on a nut and they crank off pretty quick.
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modain
GenIII
1/07/2008
12:29:49
|  RE: 4.7 exhaust mani. stud broke
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Message:
My Durango suffered both bolts breaking on cylinder #8 a while back. I had them all replaced.
And that that tack welding trick nuts onto broken bolts? That is a lifesaver. My B-I-L had two exhaust bolts broken down to the head on his Buick Roadmaster that he had no success in removing. His wife's uncle told him about the welded nut trick. Had it done and the bolts came out without any problem at all. Good trick to keep tucked away for a rainy day...
What's your left foot doing?
==============
2002 Graphite QC SLT Plus, 4.7L, NV3500, Superchips 3715, 3.92 LSD, R/T rear swaybar, no chrome, loads o'fun...
2001 Patriot Blue Durango SLT, 4.7L, 45RFE, Superchips 3715, 3.55 Open (for now)
1999 Forest Green Dakota RC Sport, 2.5L, NV1500, 3.55 Open
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Chris
Dodge Dakota
JOIN HERE
1/17/2008
19:51:48
| RE: 4.7 exhaust mani. stud broke
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Message:
I just posted about this same problem sounds like the same stud on my truck
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Chris
Dodge Dakota
JOIN HERE
1/18/2008
21:15:33
| RE: 4.7 exhaust mani. stud broke
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Message:
I have never removed one of these before was wondering about those kits where you drill the stud and tap in a spline with that special nut. Or would I be wasting my time ???? any tips greatly appreciated
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TexasTodd
Dodge Dakota
JOIN HERE
1/20/2008
17:30:04
| RE: 4.7 exhaust mani. stud broke
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Message:
I was wondering,
WHAT are you doing to even know the stud broke?
My 01 4.7 manual tranny,
227 RWHP
300 RWTQ...Rear Wheel!
I've done HO cams, a few other mods, and never evern looked at this stud.
Is it b/c you heard/found an exhaust leak?
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Chris
Dodge Dakota
JOIN HERE
1/20/2008
21:10:34
| RE: 4.7 exhaust mani. stud broke
IP: Logged
Message:
I have exhaust leak noticed it was coming from the manifold then I noticed the stud was loose removed it by hand only attached to the heat shield.
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TexasTodd
Dodge Dakota
JOIN HERE
1/21/2008
13:42:33
| RE: 4.7 exhaust mani. stud broke
IP: Logged
Message:
Oh, now I see.
I'll keep this in mind just in case I develop an exhaust leak too!
Todd
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04dakota4x4
GenIII
1/22/2008
17:41:45
| RE: 4.7 exhaust mani. stud broke
IP: Logged
Message:
I had that happen to my lower rear stud. I started hearing a faint exhaust leak, but I couldn't figure out exactly where it was coming from. I thought the manifold gasket was blown, but when I went to take the manifold off to replace it, I noticed the broken stud. Luckily the warranty covered it! Ended up with a new manifold too somehow. I hear it's a common problem, but apparently not common enough to do a recall. Bastards..
'04 Graphite CC 4x4 - Adding mods every chance I get!
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