Exhaust studs question
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Mountain Pass
Joined: Nov 2005
Posts: 239
Likes: 9
From: moreno valley calif
Exhaust studs question
just curious, seems everyone has missing/ broken exhaust studs. We do not tow or live in the snow belt. We have 220,000 miles and no missing studs. Wondering if how and where you use the X has a bearing on that issue ?
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
The V10's long log-style exhaust manifolds expand and contract during heat-cycling.
The more they heat up, the more they expand.
If the nuts are corroded, and stick to the manifold, the manifold expanding and contracting drag the studs back and forth, eventually fatiguing them and they break.
I can't say why yours hasn't done it, but I suspect it has to do with not a lot of high-load runs (no towing) and no corrosion.
If you're not the original owner, they may have already been changed
The more they heat up, the more they expand.
If the nuts are corroded, and stick to the manifold, the manifold expanding and contracting drag the studs back and forth, eventually fatiguing them and they break.
I can't say why yours hasn't done it, but I suspect it has to do with not a lot of high-load runs (no towing) and no corrosion.
If you're not the original owner, they may have already been changed
Elder User
Joined: Feb 2006
Posts: 545
Likes: 5
From: FL
My Florida registered truck (2003 F-350 , original owner ) has no broken studs so far (knock on the wood) . Every once in a while, I apply high temperature resistant rustproofing material on them with a tiny brush . Among the materials I used are high temp silicone grease , high temp anti-seize (the kind used for spark plugs),etc.
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