Egt's and boost issue... - Ford Powerstroke Diesel Forum
User Tag List

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 15 Old 02-02-2012, 10:13 PM Thread Starter
Member
 
Join Date: Jul 2011
Posts: 36
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Egt's and boost issue...

Here's another one. My EGT's have been slowly getting higher. I use to see 300 at idle, easily. Now I'm up to almost 400 and it's colder outside now. I'm seeing upwards of 900 when accelerating to only 45-50 mph at no more than 2000 RPM. Also, I've noticed soot on the firewall, behind the turbo and I don't see more than 10-12 pounds of boost when getting into it moderately hard. I see 3 pounds when cruising at 60 MPH. As far as the boost, that's how it's been since I got it, but now I'm thinking it's low for the mods the truck has. Although, the turbo sounds what I think to be normal. Does all this sound to be related or separate issues?

My temp gauge is working and cycles as it should and the heat is working well. I know the truck has the upgraded 203 thermostat. So, I don't think the EGT's are related to a coolant system issue. Whatcha think?

97' PSD F-350 CCLB 4X4: Gauges, TW tunes, AFE intake, Baby Swamp injectors, Banks intercooler, CPR fuel, Adrenaline HPOP, Bean's D66 turbo w/ pedestal, custom dual exit 4" exhaust, RSK swap w/ Bilsteins and Icon rear leaf pack on 35" BFG's, on-board air, and more...

Can't take credit for the current build, bought it like it is, but looking to take it further in the future.
rplowden is offline  
post #2 of 15 Old 02-02-2012, 10:29 PM
Compression Ignition Addict
 
backwoodsboy's Avatar
 
Join Date: Nov 2011
Location: The great state of Warshington
Posts: 889
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Soot on the firewall is a pretty clear sign of the up-pipe to the turbo leaking. Add in the low boost numbers, and high EGT's and I'd put money on that being your problem.
backwoodsboy is offline  
post #3 of 15 Old 02-03-2012, 01:15 AM
Compression Ignition Addict
 
cweiss87's Avatar
 
Join Date: Aug 2011
Location: Utah
Posts: 470
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
^^^he said it. Up pipe leakin you lose some exhaust pressure to the turbo and you won't spin it all the way to build full boost.

04 F-250 FX4.
Sct X2 with tunes from Gearhead
Zoodad mod
High idle mod
Straight pipe exhaust
BDS leveling kit
Stage 1 intake
cweiss87 is offline  
post #4 of 15 Old 02-03-2012, 05:30 AM Thread Starter
Member
 
Join Date: Jul 2011
Posts: 36
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
So, is there an o-ring or seal that I need? Or is it just a matter of tighteningthe clamp? I have the D66 turbo w/ downpipe. How difficult to replace that seal?

97' PSD F-350 CCLB 4X4: Gauges, TW tunes, AFE intake, Baby Swamp injectors, Banks intercooler, CPR fuel, Adrenaline HPOP, Bean's D66 turbo w/ pedestal, custom dual exit 4" exhaust, RSK swap w/ Bilsteins and Icon rear leaf pack on 35" BFG's, on-board air, and more...

Can't take credit for the current build, bought it like it is, but looking to take it further in the future.
rplowden is offline  
post #5 of 15 Old 02-03-2012, 06:29 AM Thread Starter
Member
 
Join Date: Jul 2011
Posts: 36
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Well, I went out to tighten down that clamp (which tightened up easily) and this is what I found...FML! Options? Don't wanna spend a fortune, but don't really want to downgrade either.
Attached Thumbnails
Click image for larger version

Name:	DSCN4959.jpg
Views:	197
Size:	89.4 KB
ID:	33374  

97' PSD F-350 CCLB 4X4: Gauges, TW tunes, AFE intake, Baby Swamp injectors, Banks intercooler, CPR fuel, Adrenaline HPOP, Bean's D66 turbo w/ pedestal, custom dual exit 4" exhaust, RSK swap w/ Bilsteins and Icon rear leaf pack on 35" BFG's, on-board air, and more...

Can't take credit for the current build, bought it like it is, but looking to take it further in the future.
rplowden is offline  
post #6 of 15 Old 02-03-2012, 08:41 AM
Compression Ignition Addict
 
backwoodsboy's Avatar
 
Join Date: Nov 2011
Location: The great state of Warshington
Posts: 889
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
It's a little hard to tell from the pic, but from what I can see it looks like you've got a hole rusted through on the exhaust side of the turbo? Never seen that one before...
Generally its "just" a matter of replacing the gasket. This is still a huge PITA. In order to get enough room to work, you either have to remove the turbo or drop the transmission.
You can also replace the entire up-pipe with a bellowed one that eliminates the gasket, but that will cost you some serious coin.
Pipes:
OBS-E99 Bellowed Up-Pipes
Gasket:
Swamp's Webstore - 7.3L Up-pipe donut gaskets (1994-2003, 7.3L)

How old is that turbo? I see you're running a D66, so I assume it's relatively new.

Last edited by backwoodsboy; 02-03-2012 at 08:51 AM.
backwoodsboy is offline  
post #7 of 15 Old 02-03-2012, 02:52 PM Thread Starter
Member
 
Join Date: Jul 2011
Posts: 36
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
As far as the turbo goes, is that something that can be replaced? Like a housing, or do I need a complete replacement?

And is there any reason not to drive it like this as long as I keep an eye on the EGT's?

97' PSD F-350 CCLB 4X4: Gauges, TW tunes, AFE intake, Baby Swamp injectors, Banks intercooler, CPR fuel, Adrenaline HPOP, Bean's D66 turbo w/ pedestal, custom dual exit 4" exhaust, RSK swap w/ Bilsteins and Icon rear leaf pack on 35" BFG's, on-board air, and more...

Can't take credit for the current build, bought it like it is, but looking to take it further in the future.

Last edited by rplowden; 02-03-2012 at 03:02 PM.
rplowden is offline  
post #8 of 15 Old 02-03-2012, 03:31 PM
DERAIL MOD!!!


 
351fifty's Avatar
 
Join Date: May 2011
Location: Canton and kennesaw
Posts: 23,174
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 34
Thanked 206 Times in 194 Posts
Feedback Score: 4 reviews
you should be able to get a new exhaust housing for it, where did you get the d66 from anyway?, youve been doing it this long, but i would fix it asap if i were you

-Kris-
2011 f150 ecoboost 4x4 323/452 on php dyno 11/16/13
1995 CCLB DRW 324K
2001 CCLB DRW 319K
Dp tuner infinity, exhaust, intake, chipped, tricked, and wrecked


Quote:
Originally Posted by marine5811
The stock downpipe in an OBS is flat because I'm a ginger.
Quote:
Originally Posted by alberta 7.3
Finding a decent woman is like shopping for a used truck. You spend most of your time picking through the money pits, wrecks, and basket cases until you find one that you can tolerate
Quote:
Originally Posted by JJFLASH
Well at least you caught the loose bolts before they cause any damage. Nothing worse than a sloppy hole
351fifty is offline  
post #9 of 15 Old 02-03-2012, 06:34 PM Thread Starter
Member
 
Join Date: Jul 2011
Posts: 36
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Bought it like this. Everything was already installed, don't know how long ago though. The housing is pretty rusted, I'm afraid the bolts are just gonna snap off when I try to take the thing apart. I guess we'll find out.

97' PSD F-350 CCLB 4X4: Gauges, TW tunes, AFE intake, Baby Swamp injectors, Banks intercooler, CPR fuel, Adrenaline HPOP, Bean's D66 turbo w/ pedestal, custom dual exit 4" exhaust, RSK swap w/ Bilsteins and Icon rear leaf pack on 35" BFG's, on-board air, and more...

Can't take credit for the current build, bought it like it is, but looking to take it further in the future.
rplowden is offline  
post #10 of 15 Old 02-03-2012, 10:58 PM
Compression Ignition Addict
 
backwoodsboy's Avatar
 
Join Date: Nov 2011
Location: The great state of Warshington
Posts: 889
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Yeah finding a new exhaust housing shouldn't be too hard. They aren't typically a high fatigue item, so check out the local junk yard.
PB-Blaster is your friend. Heating/cooling cycles have a tendency to make any exhaust or turbo bolt fairly hard to get out.
backwoodsboy is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome