Notices
Pre-Power Stroke Diesel (7.3L IDI & 6.9L) Diesel Topics Only

3406E Question

Thread Tools
 
Search this Thread
 
Old Apr 21, 2013 | 08:44 PM
  #1  
Chevy_Eater's Avatar
Chevy_Eater
Thread Starter
|
Logistics Pro
20 Year Member
Photogenic
Liked
Loved
Joined: Apr 2005
Posts: 4,221
Likes: 17
Talking 3406E Question

I know, not quite the forum for it, but I figured for fun I'd throw it out there.

Years back one of our old Freightshakers ate a valve and then passed the valve through the turbo and munched it up. Truck was just a few thousand shy of hitting the 1 million mark. Company retired it.

Since then we occasionally use it to move stuff around the yard, the blow-by is pretty stiff but we deal with it by leaving the engine fan on. Over the years the non-used fuel in this dead cylinder has slowly been filling up the crankcase and recently the old girl tried to run away (ostensibly off the excessive amount of oil/fuel in the crankcase).

Now, before doing an oil change and going through it all again, I had the idea of pulling the injector line off the dead cylinder and capping it off so as to eliminate the problem altogether. Question is, will this hurt the IP pump (or Cat equivalent) when it tries to pump fuel to an injector that isn't there, but capped off?
3406E, '94 IIRC.
 
Reply
Old Apr 21, 2013 | 08:54 PM
  #2  
84-6.9L's Avatar
84-6.9L
Posting Guru
Joined: Feb 2011
Posts: 2,216
Likes: 0
From: Princeton MN
Yes it will, injection systems are positive displacement. Capping a line off will cause pressure (and heat) buildup until the pump fails or the ECU may just shut it down.
 
Reply
Old Apr 21, 2013 | 09:54 PM
  #3  
NorthernDiesel's Avatar
NorthernDiesel
Senior User
Joined: Mar 2010
Posts: 419
Likes: 0
From: Timmins, Ontario, Canada
2nd that. Liquid is incompressible. The displaced fuel would find a place to go... and it wouldn't likely do so peacefully.

You could pull the injector and leave it attached to the line, and just return the "ejected" fuel to the tank, i.e. via whatever return line system is available or a seperate line.
 
Reply
Old Apr 21, 2013 | 10:02 PM
  #4  
tecgod13's Avatar
tecgod13
Logistics Pro
15 Year Member
Joined: Sep 2007
Posts: 3,737
Likes: 179
From: Western Mass
Can you re-route the line into a can and drain it back into the fuel return system?
 
Reply
Old Apr 21, 2013 | 10:11 PM
  #5  
Chevy_Eater's Avatar
Chevy_Eater
Thread Starter
|
Logistics Pro
20 Year Member
Photogenic
Liked
Loved
Joined: Apr 2005
Posts: 4,221
Likes: 17
Thanks guys, I was afraid of that.
ND, that sounds like an idea to look at. I was toying with the idea of pulling the head and replacing just the one valve, but I've never torn into one of the big Cats before and from what I can see just the head sets are pricey on 'em and I don't see the company springing for a lot of $$$ on a retired rig.
 
Reply
Old Apr 21, 2013 | 10:25 PM
  #6  
NorthernDiesel's Avatar
NorthernDiesel
Senior User
Joined: Mar 2010
Posts: 419
Likes: 0
From: Timmins, Ontario, Canada
Originally Posted by Chevy_Eater
... I don't see the company springing for a lot of $$$ on a retired rig.
Well, once you state the cost savings of saving 1/8 of the fuel used on occasional yard use...
 
Reply
Old Apr 21, 2013 | 11:49 PM
  #7  
ozdatman's Avatar
ozdatman
Senior User
Joined: Jan 2013
Posts: 327
Likes: 0
From: West Aus
Is the junk turbo still on it? I saw a turbo bearing collapse on a 600hp cummins. The motor then fueled itself on the turbo oil supply and hit 8000rpm before it seized. lots of smoke and very exciting for the driver.
 
Reply
Old Apr 21, 2013 | 11:58 PM
  #8  
NorthernDiesel's Avatar
NorthernDiesel
Senior User
Joined: Mar 2010
Posts: 419
Likes: 0
From: Timmins, Ontario, Canada
Originally Posted by ozdatman
Is the junk turbo still on it? I saw a turbo bearing collapse on a 600hp cummins. The motor then fueled itself on the turbo oil supply and hit 8000rpm before it seized. lots of smoke and very exciting for the driver.
They've had that happen at the mine here (in Australia) on a few Land Cruiser 70 series turbo V8s... now they have to have fire supression systems. All that for nothing, since they're pinned at 25km/h...
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-1

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-2

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-3

Every 2026 Ford Engine Explained

 Brett Foote
story-4

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-5

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-6

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-7

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-8

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
story-9

Top 10 Ford Truck Tragedies

 Joe Kucinski
Old Apr 22, 2013 | 01:30 AM
  #9  
ozdatman's Avatar
ozdatman
Senior User
Joined: Jan 2013
Posts: 327
Likes: 0
From: West Aus
Originally Posted by NorthernDiesel
They've had that happen at the mine here (in Australia) on a few Land Cruiser 70 series turbo V8s... now they have to have fire supression systems. All that for nothing, since they're pinned at 25km/h...
Where are you in Aus? I live in Perth.
 
Reply
Old Apr 22, 2013 | 01:44 AM
  #10  
NorthernDiesel's Avatar
NorthernDiesel
Senior User
Joined: Mar 2010
Posts: 419
Likes: 0
From: Timmins, Ontario, Canada
Originally Posted by ozdatman
Where are you in Aus? I live in Perth.
Mount Isa, QLD (he says with excitement... lol!)
I'm just about done a year here on loan from a Canadian operation.

Pretty great seeing all these 80s and 90s F-Trucks all rust free, with custom boxes (sorry... trays, lol) and all. Tried to buy one, almost browned my pants at the prices... 90s trucks selling for the price of a brand new base F-150 back home!

One hell of a country!
 
Reply
Old Apr 22, 2013 | 09:57 PM
  #11  
Ford_Six's Avatar
Ford_Six
Hotshot
Joined: Oct 2002
Posts: 18,488
Likes: 22
From: The Big, Oregon
Club FTE Gold Member
I thought the Echo had a fuel rail and electronic injectors? A was a straight mechanical, B was some electronics added, C was an electronically controlled injector pump and the the Echo had a computer mounted on the side of the engine that ran everything. If that's the case, just pop the valve cover and unplug the injector electrical. It's high voltage, like 90-140v so you might want to seal it somehow. If it has an injection pump, then just cut the line, clamp a hose on it and tee it into the return system. It won't have the pressure in it since there won't be an injector capping the end.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
3000gtman
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
29
May 18, 2020 10:32 AM
RainStroked
1999 - 2003 7.3L Power Stroke Diesel
12
Oct 8, 2011 01:04 AM
dyoungen
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
4
Dec 22, 2009 12:41 AM
HighdefJoe
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
2
Sep 20, 2008 11:09 AM
Dogs-in-the-back
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
3
Oct 30, 2006 09:42 AM




All times are GMT -5. The time now is 06:58 AM.

story-0
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-1
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-2
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-3
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-4
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-5
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-6
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-7
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-8
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-9
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE