7.3 IDI injectors
Elder User
Joined: Feb 2010
Posts: 724
Likes: 0
What does the smoke smell like?
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
Blue is oil
White is superheated (partially burnt) fuel OR coolant
Black is unburnt fuel
Blue smoke all the time indicates bad valve guides and or valve guide seals or piston rings.
And sweet smelling (coolant smell) smoke just indicates you have coolant being burnt, not where it comes from and is not limited to a head gasket.
-Enjoy
fh : )_~
White is superheated (partially burnt) fuel OR coolant
Black is unburnt fuel
Blue smoke all the time indicates bad valve guides and or valve guide seals or piston rings.
And sweet smelling (coolant smell) smoke just indicates you have coolant being burnt, not where it comes from and is not limited to a head gasket.
-Enjoy
fh : )_~
Thread Starter
|
Junior User
Joined: Jul 2010
Posts: 54
Likes: 1
From: Jacksonville Florida
For my truck it depends at what point we are talking about; during startup when my glow plugs decide to come on I get very little or no smoke at all, when the glow plugs fail to come on I get a cloud of bluish grey smoke that smells like fuel. once that cloud goes away I usually do not get any really noticable smoke unless you stand at the very rear of the truck and watch the exhaust. For me that tells me along with what I would describe as a lifter noise if this was a gas job, that I have atleast one bad injector. My exhaust is more noticable at night when, i first start off and there are cars behind me.
For you it may be different, it all depends on color, smell, and if you hear any noises that do not sound normal to the engine. this is only my opinion based on what I have learned. the best suggestion I have is post a video, if you can of the smoke and maybe someone can help you diagnose it,
The lifter noise I am talking about is an obvious tick, tick, tick, tick, and does not sound like the clack, clack, clack, clack, they normally make. OK,OK every body can laugh at my description now.
For you it may be different, it all depends on color, smell, and if you hear any noises that do not sound normal to the engine. this is only my opinion based on what I have learned. the best suggestion I have is post a video, if you can of the smoke and maybe someone can help you diagnose it,
The lifter noise I am talking about is an obvious tick, tick, tick, tick, and does not sound like the clack, clack, clack, clack, they normally make. OK,OK every body can laugh at my description now.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Cargo Master
Joined: Nov 2003
Posts: 2,585
Likes: 1
From: Duluth, Mn.
I bought a set from typefour.
The way I look at it is that any/every injector should be pop tested before installation. We all know that just because the package say's 'New'. It just means that You have about an 80% chance of it working as it was designed to.
Russ not only pop tests them, but pressure matches them to within 10 PSI or so. Makes for a much smoother running engine!
The way I look at it is that any/every injector should be pop tested before installation. We all know that just because the package say's 'New'. It just means that You have about an 80% chance of it working as it was designed to.
Russ not only pop tests them, but pressure matches them to within 10 PSI or so. Makes for a much smoother running engine!
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
Don't get me wrong, I'm not knocking what typefour does, I know nothing about him other then what I've heard on here and it has never been anything but praise!
Does he pull them apart to match them or just buy lots and test them all and match up!
-Enjoy
fh : )_~
Does he pull them apart to match them or just buy lots and test them all and match up!
-Enjoy
fh : )_~
Laughing Gas
Joined: Aug 2003
Posts: 919
Likes: 4
From: Newberg Oregon
Most of the time they come out at 50 to 75 lbs within. And it can be a time consuming pain but well worth it
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
Thanks for the info Typefour ...
I understand the pain, been there doing that, only with shocks & springs, not Injectors.
Curiosity has me though, I understand you buy Delphi's, I am curious as to what you find on variances across them out of the box ???
-Enjoy
fh : )_~
I understand the pain, been there doing that, only with shocks & springs, not Injectors.
Curiosity has me though, I understand you buy Delphi's, I am curious as to what you find on variances across them out of the box ???
-Enjoy
fh : )_~
