welding stock exhaust manifolds? - F150online Forums

welding stock exhaust manifolds?

Thread Tools Search this Thread
Old 02-24-2011, 04:01 AM
Thread Starter
Join Date: Jul 2009
Posts: 95
welding stock exhaust manifolds?

found two small cracks in the stock exhaust manifolds of my 2003 f150 FX4, can they be welded up? i'm just looking for a temporary fix, something to last a year or so until I sell it and get a new truck.
Reply With Quote
Old 02-24-2011, 04:56 AM
Technical Article Contributor
Join Date: Oct 2005
Location: MI
Vehicle: 1998 Ford F150 5.4L 4X4
Posts: 25,637
I don't see why not. I've never had to,- just migged exhaust myself. Yea, I don't see why couldn't, if you clean it up well.

On the other hand, Dorman sells replacements pretty cheap. I've seen them for as low as $27 on ebay and from Dorman.

Whatever you do, -replace your trans mount. That's why they snap studs @ the manifold. That exhaust damper is bolted to the mount. When the mount wears out, you get allot of vibration thru the Y. This fatigues the manifold bolts. Most likely why yours is cracked.
Reply With Quote
Old 02-24-2011, 05:22 AM
Join Date: Feb 2011
Posts: 52
They are cast iron, they can be welded but not very easy to do. You would need to remove them, heat in an oven and weld while still hot. You would need a "high nickel" rod if stick welding, TIG would be a better bet.

I have had some success braising manifolds, but that is a temporary cure at best.

I would get one from a JY or switch to headers.
Reply With Quote
Old 02-24-2011, 07:02 PM
Senior Member
Join Date: Oct 2009
Location: Missouri
Vehicle: 2006 Ford F250
Posts: 6,172
X2 for heads. Welding cast is very difficult, and it won't last.

FYI - I have been welding for quite a few years.
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Rattle Noise - 2010 F150 5.4L bastank Other Powertrain 9 05-12-2016 12:16 AM
Cost to replace manifold work? concreteclauss Exhaust & Intake Systems 3 08-17-2015 10:34 PM
Opinions on my fix jamesd1977 2004 - 2008 F-150 2 08-06-2015 10:40 AM
93 Cat delete FatNUgly96 Pre-1997 Models 8 07-28-2015 04:45 PM
Bushings (leaf springs) CKAL 1997 - 2003 F-150 4 07-15-2015 12:30 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off

All times are GMT -4. The time now is 06:40 AM.

This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Fordé is a registered trademark of the Ford Motor Company