EXHAUST MANIFOLD HEADACHE? OR POSSIBLE
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#20
UPDATE: My 2000 5.4 with gibson shorties and stock exhaust, found no sound difference at idle, but you can hear the difference when you step on it ,not much but you can hear the engine more, as far as power i noticed some more pull out of the hole and a big difference after 2500 rpms ,definitly feel the pull in the seat, next on the exhuast project i thinking of going with the gibson super truck cat back system, anyone have this already? how is it?
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#25
Exhaust Stud Removal
Hi KB, I just read you're thread on your exhaust stud removal. Good Job! This looks like one of the best options I've seen. How many were broken and how many miles on engine at the time? Did they come out easily after you cut the nuts off? What was you're stud removal process? Sorry for all the questions, I'm contemplating taking on the same project, I have all the tools, stud remover, welder, grinders and dremmel. Just trying to get all the info before I attempt it so I can to try to avoid problems and make it go as easy as possible. As far as I can see I have two rusted off nuts on the top rear on both sides. Thanks for your help.
Gene
Gene
#26
These were pretty much the tools I used to cut off the studs, grinded right through the nuts until just the stud showing in the hole, in this process I was also grinding into the manifold bolt area but I was replacing them anyway with headers, and grinded thru the flange bolts as well , it poped off
When all was removed except for the studs I was surprised with no pressure on the studs , I clamped on to them with little vise grips and they would turn , but olny about half turn and i would feel friction so i worked back and forth going another half turn out after it got easier
With the bolts included in the head kit i soaked the holes with jb blaster and ran the new header bolt in and out each hole until easy( no friction)
All in total i had three studs that were broken , both on cylinder four and 1 on upper on cylinder 5
Mine were all broken at the manifold not the head which made it easy to remove them i thought they would be hard cuz they were rusted from being snapped for a long time but they came out like the rest
The passenger side was easier to install the new headers than the drivers, i didnt have to remove the starter or my 4x4 shaft per instructions
I have 115k on the truck and being in northern area alot lot of salt takes its toll on trucks
When all was removed except for the studs I was surprised with no pressure on the studs , I clamped on to them with little vise grips and they would turn , but olny about half turn and i would feel friction so i worked back and forth going another half turn out after it got easier
With the bolts included in the head kit i soaked the holes with jb blaster and ran the new header bolt in and out each hole until easy( no friction)
All in total i had three studs that were broken , both on cylinder four and 1 on upper on cylinder 5
Mine were all broken at the manifold not the head which made it easy to remove them i thought they would be hard cuz they were rusted from being snapped for a long time but they came out like the rest
The passenger side was easier to install the new headers than the drivers, i didnt have to remove the starter or my 4x4 shaft per instructions
I have 115k on the truck and being in northern area alot lot of salt takes its toll on trucks
#28
Thanks for the quick reply KB! I've got 35,120 miles on my 2002 6.8L and hope it will go as easy as yours did. I know that miles alone aren’t the only factor here, and that age, hot/cold cycles and climate all come into play with these studs. So we'll see how it goes. Thanks again. By the way your exhaust looks great.
Gene<V</V<O</O
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Gene<V</V<O</O
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#30
KB what year is your truck? I am also contemplating this task soon, as, I have a small pinhole in the manifold now....I wonder why these manifold rot out so badly?? I almost always hear of the pass side going before the drivers side. Did the short's literally bolt right up?
Thanks
Rich!
PS: You did a fantastic job on the new system!
Thanks
Rich!
PS: You did a fantastic job on the new system!