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1994.5 - 1997 7.3L Power Stroke Diesel  

Very smokey startups

Old Jul 6, 2023 | 11:20 AM
  #31  
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Originally Posted by knottyrope
only the exhaust side seal leaking will make blue smoke

intake side leaks and CCV will burn off in the combustion chamber unless you have a dead hole

maybe do compression test while in there?
I need to get that done. I think I’m scared of the result though 😆

I was just wondering about the compressor side cause I read in a few places if the compressor side is leaking it can cause blue smoke

I can’t remember if I said it in my last post or not but the bearing housing just stinks. Almost like gear oil. Not sure why
 
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Old Jul 6, 2023 | 11:42 AM
  #32  
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From: Bahstun
these engines run on Diesel, engine oil, atf, jack oil, brake fluid and cooking oil

anything above will burn in the combustion chamber unless there is too much of it and then you get smoke

Smoke usually comes from exht seal on turbos, dead hole/low compression or injector leaking by and that usually makes for hydro lock or black smoke
 
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Old Jul 6, 2023 | 12:16 PM
  #33  
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Originally Posted by knottyrope
these engines run on Diesel, engine oil, atf, jack oil, brake fluid and cooking oil

anything above will burn in the combustion chamber unless there is too much of it and then you get smoke

Smoke usually comes from exht seal on turbos, dead hole/low compression or injector leaking by and that usually makes for hydro lock or black smoke
thsnks for all your help thus far. I’m not ignoring your advice at all. Just haven’t done the compression test yet 👍

who knows the history of the vehicle with the previous owner. Hopefully they treated it well. It was a 2 owner truck before me. The guy I got it from had it a year. The original owner bought it new
 
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Old Jul 6, 2023 | 12:48 PM
  #34  
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From: Bahstun
Originally Posted by DanielT28
the bearing housing just stinks. Almost like gear oil. Not sure why

its like seasoning a frying pan in there with all that heat

when i burn used engine oil in my chiminea drum thing, it smells really bad
 
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Old Jul 6, 2023 | 01:11 PM
  #35  
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combo of stubby wrench (15mm i think?) and built in swivel 3/8 drive shallow socket like from tekton 3/8 Inch Drive Universal Joint Socket Set, 17-Piece | TEKTON | SHD91301
 
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Old Jul 7, 2023 | 01:18 AM
  #36  
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Making progress on my way to putting the turbo back in. New fuel filter housing and fuel pump. OEM from Riffraff. Not sure I routed the harness correctly. But I don’t feel like pulling it back out at the moment. Cleaned out the valley of the engine. Just waiting on turbine housing and heat shield to arrive tomorrow. Will put truck back together after work i hope. See what happens.

wish me luck reinstalling the t-4 to the back of the turbo. Those lower bolts are gonna be a B.

Also this winter on a different OBS I replaced the pump and fuel bowl. It almost didn’t start due to the air in the system. Could I just fill the fuel bowl up with diesel manually before starting to crank on it?

Out with the old

New fuel filter housing. ( I find it easier just to buy a whole brand new setup.) RR Diesel was out of stock. Believe it or not Home Depot had OEM motor craft in stock. So I snagged one and had it shipped to the store last week.

New fuel pump (fuel lines were replaced earlier this winter. I should’ve done everything back then with the fuel system. Just didn’t have the $$$)

FPR Screen on old fuel bowl COMPLETELY BLOCKED/CLOGGED

Another angle of FPR

Fuel bowl somewhat dirty and gritty. I cleaned it out a few months ago. But couldn’t get it all. I believe this was the OEM fuel bowl and fuel pump. I had a diesel leak in the valley also


Flatbed makes for a great work bench 😃
 
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Old Jul 7, 2023 | 07:18 AM
  #37  
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ID highly recommend replacing the fuel lines from head to bowl if they are original(they appear to be) while you are in there.

These are getting old and brittle at this point and seem to be more failure prone once disturbed. Riff raff sells both the motorcraft lines and a coted stainless braided version of their own.
 
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Old Jul 7, 2023 | 07:41 AM
  #38  
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Originally Posted by KubotaOrange76
ID highly recommend replacing the fuel lines from head to bowl if they are original(they appear to be) while you are in there.

These are getting old and brittle at this point and seem to be more failure prone once disturbed. Riff raff sells both the motorcraft lines and a coted stainless braided version of their own.
It’s on the list of to do’s. Can’t do it all right now financially. But hopefully that doesn’t bite me..my funds are dwindling 😳 I thought about doing that. I’ve just dropped so much $ into this thing lately. I hope it holds up. My luck they’ll fail now .. 😱
 
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Old Jul 7, 2023 | 07:58 AM
  #39  
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Yup on the lines, my son's 95 had a fuel leak Wednesday, I touched the driver's side line and it broke in half. Lucky for him I keep a pair in stock, now hopefully he replaces my stock!
 
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Old Jul 7, 2023 | 10:02 AM
  #40  
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$70ish for riff raff bout the best deal out there

https://www.riffraffdiesel.com/fuel-...sleeves-hoses/
 
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Old Jul 7, 2023 | 10:50 AM
  #41  
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Ah yes, those lines. One blew on me right after I purchased Rojo.
 
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Old Jul 7, 2023 | 01:48 PM
  #42  
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Originally Posted by KubotaOrange76
$70ish for riff raff bout the best deal out there

https://www.riffraffdiesel.com/fuel-...sleeves-hoses/
link didn’t work

*Edit* sorry I didn’t see the arrows. Yeah. They probably do need replaced. I thought you were talking about the steel ones


You’re talking about this aren’t you?


 
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Old Jul 7, 2023 | 02:14 PM
  #43  
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From: Bahstun
for that price, get the cali version and have a smoother idle with the pulse damper
 
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Old Jul 7, 2023 | 02:58 PM
  #44  
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Originally Posted by DanielT28
link didn’t work

*Edit* sorry I didn’t see the arrows. Yeah. They probably do need replaced. I thought you were talking about the steel ones


You’re talking about this aren’t you?
I was referring to these

sorry, should have made the arrows bigger

Driver Side SS Braided Fuel Line 94-97 (RDP-FFL-OBS-DS) (riffraffdiesel.com)
Passenger Side SS Braided Fuel Line 94-97 (RDP-FFL-OBS-PS) (riffraffdiesel.com)
 
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Old Jul 7, 2023 | 03:02 PM
  #45  
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A few pics from this post showing mine, thanks to @Hit Man X for suggesting to me
1997 C&C 4x4 upkeep thread. - Page 3 - Ford Truck Enthusiasts Forums (ford-trucks.com)
 
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