Manifold studs already?
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Freshman User
Joined: Jun 2008
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Manifold studs already?
Was camping last weekend,a guy across from me asked how I liked my V-10,as he has one also and we both pull big 5vers,we got to talking and he said he was on his second V-10 truck and he loved the power,he has an '09 and mine is an '06,he asked me to pop the hood,and we were comparing the differences in the two trucks,(rad. support,grille,air cleaner setups) and all of a sudden he start ranting and shines his flashlight on his exhaust manifold on the left side,then goes to the right side and starts ranting again....2 broken manifold studs,and only 60,000 miles on an '09,is that common with that few miles? He said his other V-10 SD broke a couple on a trip to Fla., and it cost him a fortune to get fixed,is this that common? Wished I could find headers for my 3v '06 and put stainless bolts in there....
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
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From: Long Island USA
They were all stainless studs. My '01 had stainless and it was brand-new when I got it so they were never changed.
The problem is MAYBE a bad heat-treatment, where the stud had a shoulder made in it.
The biggest problem is rust. When the nuts/manifold rusts, the nuts basically stick to the manifold, the manifold expands and contracts, and drags the nut with it. After a while, any stud, not matter what, is going to fatigue and break. Better the stud than the hole in the head getting hogged out.
I don't know why it's happening on the 3-valver, the manifolds are not the log-style on the 2-valvers...
The problem is MAYBE a bad heat-treatment, where the stud had a shoulder made in it.
The biggest problem is rust. When the nuts/manifold rusts, the nuts basically stick to the manifold, the manifold expands and contracts, and drags the nut with it. After a while, any stud, not matter what, is going to fatigue and break. Better the stud than the hole in the head getting hogged out.
I don't know why it's happening on the 3-valver, the manifolds are not the log-style on the 2-valvers...
Junior User
Joined: Jun 2010
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this thread made me check mine. 2003 v10 273k miles!. getting a ticking sound upon accel on any temp engine but it comes and goes. spark plug spit issue was resolved on 2003MY by adding threads no?
19 studs in tact with 1 broke on drivers underside. could this 1 stud cause all the sound/leak?
any way to pb blast nuts wire brush and ease them off replacing with new copper no rust style? likely just break them y doing so?
or just leave them alone and try to drill out the one broken stud and replace it? for the other 19 would a pb blast and wire brush followed by some sort of rustproof/heat treat preserve them for a longer duration? not sure how much more life i have in engine at 273k.....
19 studs in tact with 1 broke on drivers underside. could this 1 stud cause all the sound/leak?
any way to pb blast nuts wire brush and ease them off replacing with new copper no rust style? likely just break them y doing so?
or just leave them alone and try to drill out the one broken stud and replace it? for the other 19 would a pb blast and wire brush followed by some sort of rustproof/heat treat preserve them for a longer duration? not sure how much more life i have in engine at 273k.....
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
Yep, that one stud could be the reason for the tick. As for fixing it, I dunno, once I start on something like that, to get to the one broken one, why not go whole-hog and replace them all. I bet they are going to break getting them out too...
