Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
 


Reply
 
Thread Tools Display Modes
 
Old 08-02-2021, 02:13 PM   #1
Senior Member
 
arctictraveller's Avatar
 
Join Date: Mar 2013
Posts: 4,234
Anybody changed the exh manifold on a 5.4?

I have a cracked passenger side exhaust manifold that I need to change. The studs are only a couple years old, so hopefully the nuts can be removed, but I cant even see the forward ones. Has anyone pulled the manifold, and if so, any tips or an estimate of the time involved? Thanks in advance...........

__________________
Arctic Traveller
KC6TNI
2001 GTRV
Advanced 4wd
Agile Ride improvement package
arctictraveller is offline   Reply With Quote
Old 08-02-2021, 08:23 PM   #2
Senior Member
 
86Scotty's Avatar
 
Join Date: Jul 2011
Location: TN
Posts: 10,222
Oh boy. I honestly don't recommend doing this yourself. I have had the problem a couple of times but not on a 5.4l

Just take it to someone. You'll have to shop mechanics because most who have done it before will outright turn you down. I speak mostly of older American iron big blocks and such stuffed in to van cabs. The 5.4 could be different.....but I doubt it.
86Scotty is offline   Reply With Quote
Old 08-03-2021, 07:27 AM   #3
Senior Member
 
Join Date: Sep 2013
Posts: 712
Just being a little pro-active and "curious" regarding my van's exhaust manifold bolts (possibly subject to rotting out ?) I was quoted roughly $ 1,400 bucks to just replace the bolts with new stainless bolts - due to all the crap needed to be removed to GET TO the bolts ! Mine's a V-10 -- OUCH !!
doublevan2 is offline   Reply With Quote
Old 08-03-2021, 08:15 PM   #4
Senior Member
 
86Scotty's Avatar
 
Join Date: Jul 2011
Location: TN
Posts: 10,222
That's if they don't have a problem. They always have a problem. If the word 'easy out' is mentioned when your frustrated mechanic calls you just tell him to donate the van and cut your losses.
86Scotty is offline   Reply With Quote
Old 08-04-2021, 07:27 AM   #5
Senior Member
 
Join Date: May 2021
Posts: 400
I read someplace about some special studs a person should use when replacing the corroded factory exhaust studs. I cant recall where i read about them, but the claim was that they dont deteriorate like the factory studs.

Anyone else read anything about these studs?
ScrapIron is offline   Reply With Quote
Old 08-04-2021, 10:11 AM   #6
Senior Member
 
shenrie's Avatar
 
Join Date: Nov 2012
Location: boise idaho
Posts: 2,625
Garage
Even if you aren’t doing the work yourself your tech would be thrilled if you started spraying all the studs daily with a mixture of atf and acetone or some kind of other penetrating oil.
__________________
"understeer is when you hit the wall with the front of your car, oversteer is when you hit the wall with the rear of your car, horsepower is how hard your car hits the wall, and torque is how far your car moves the wall."
shenrie is offline   Reply With Quote
Old 08-04-2021, 10:35 AM   #7
Senior Member
 
86Scotty's Avatar
 
Join Date: Jul 2011
Location: TN
Posts: 10,222
Very good idea Shenrie.
86Scotty is offline   Reply With Quote
Old 08-04-2021, 11:36 AM   #8
Senior Member
 
Join Date: Sep 2013
Posts: 712
I remember reading that thread also (Sherrie) on this forum - but don't know where to go to find it ??
doublevan2 is offline   Reply With Quote
Old 08-04-2021, 11:51 AM   #9
Senior Member
 
ShuttlePilot's Avatar
 
Join Date: Aug 2012
Posts: 632
Quote:
Originally Posted by ScrapIron View Post
I read someplace about some special studs a person should use when replacing the corroded factory exhaust studs. I cant recall where i read about them, but the claim was that they dont deteriorate like the factory studs.

Anyone else read anything about these studs?
I have encountered Titanium exhaust studs on motors for that reason. I have also encountered Zirconium hardware on aircraft. When my motor comes out (6.0 PSD) I will probably look into titanium exhaust hardware.

X2 on the soaking the rusty hardware with the penetrating oil of your choice. I would keep the bolts wet as much as possible for a week or two before attempting to remove. It's amazing how bad the rust can be but with enough soak time it will come apart.

- Eric
__________________
2005 SMB RB 4x4 6.0 PSD
A rocket on the pad is safe,
but it's not what rockets are built for.
ShuttlePilot is offline   Reply With Quote
Old 08-04-2021, 01:17 PM   #10
Senior Member
 
Join Date: May 2018
Location: Arizona
Posts: 642
Quote:
Originally Posted by ShuttlePilot View Post
I have encountered Titanium exhaust studs on motors for that reason. I have also encountered Zirconium hardware on aircraft. When my motor comes out (6.0 PSD) I will probably look into titanium exhaust hardware.

X2 on the soaking the rusty hardware with the penetrating oil of your choice. I would keep the bolts wet as much as possible for a week or two before attempting to remove. It's amazing how bad the rust can be but with enough soak time it will come apart.

- Eric
I have had excellent results with welding nuts onto steel exhaust studs in Aluminum motorcycle heads. The welder heat seems to break loose the corrosion that causes them to seize. Might be a good thing to do even if you have plenty of thread to grab.
posplayr is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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 Off
Refbacks are Off

» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Sportsmobile SIP or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 05:24 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.