passenger side exhaust manifold leaks, center stud has just rusted away to below the hole through the manifold. anyone have a fix w/o removing manifold? thanks bob
- posted
16 years ago
passenger side exhaust manifold leaks, center stud has just rusted away to below the hole through the manifold. anyone have a fix w/o removing manifold? thanks bob
Unfortunately this is a common problem. You'll need to remove the exhaust manifold. When you do, replace all the studs on that bank with stainless steel studs per Ford TSB 05-5-4:
Exhaust System - Exhaust Manifold Studs Broken
TSB 05-5-4
03/21/05USE OF STAINLESS STEEL EXHAUST STUDS IN SERVICE FOR 5.4L 2V ENGINE
FORD:
1997-2004 Expedition, F-150 1999-2004 F-Super Duty 1999-2005 E-SeriesLINCOLN:
1998-1999 NavigatorISSUE Some vehicles equipped with the 5.4L 2-valve (non supercharged) engine, may exhibit broken exhaust manifold studs.
ACTION On the affected bank only, replace the exhaust manifold, manifold gasket(s), and install all new stainless steel exhaust manifold studs and nuts. Torque the studs in the cylinder head to 71-115 lb-in (8-13 N.m). Torque nuts on studs to 204-239 lb-in (23-27 N.m). Refer to Workshop Manual Section 313-01A for exhaust manifold removal and installation.
Part Number Part Name W703902-S403 Stainless Steel Stud W701706-S2 Stainless Steel Nut
Also since this is a aluminum head, the studs will come out a bit easier if engine is pretty warm (wear some good leatherwork gloves)
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Yes for comment by a childish Troll that is very insecure and gets his kicks by trying to cause trouble rather than honestly trying to help. So sad....
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Thanks C.E.,
Of course I was hoping someone had a fix that could be done W/O R&R of the manifold but....
BTW, Heatwave, I don't think observing the obvious and describing it concisely will make him adjust his MO.
Hey Snoman, I'm in full troll garb here when I say "go suck a icicle."
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