Go Back   Ford Truck Enthusiasts Forums > Diesel > Bio-diesel, Propane & Alternative Diesel Engine Fuels
Sign in using an external account
Register Forgot Password?


Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1 (permalink)  
Old 07-17-2004, 09:35 PM
Jacobely Jacobely is offline
New User
 
Join Date: Jul 2004
Posts: 6
Jacobely is starting off with a positive reputation.
Smokey, smokey--'88,7.3,F250,5spd,Biodiesel

I am quickly becoming an urban menace. My truck's MO, for the last 20,000 mi or so, has been to smoke at idle when cold and then clear up. recently the cold idle smoke has increased by a large factor (but still mostly dissapears when warm) and...it has begun to smoke whenever I release the accelerator while still leaving the clutch engaged (pretty much in any gear at any speed, warm or cold). No smoke uphill or at high speeds, only when I start to slow down. I am guessing the injector pump is to blame. Just adjustment or is it trash? Note: this truck has been running on biodiesel for about 2 and a half years (40-50,000 mi).

Also...who makes the best Maint/Tech manual for the 7.3l of an '88 variety?

Cheers
Reply With Quote
  #2 (permalink)  
Old 07-17-2004, 09:49 PM
Pikachu's Avatar
Pikachu Pikachu is offline
Postmaster
 
Join Date: Jun 2004
Location: Dallas, TEXAS!
Posts: 2,770
Pikachu has a great reputation on FTE.Pikachu has a great reputation on FTE.Pikachu has a great reputation on FTE.Pikachu has a great reputation on FTE.
What color is the smoke?

Blue = oil
Black = incomplete combustion
White = unburned fuel or water vapor
__________________
Boeing 747-400, Early '99 F350 4x4 std. cab, 217k mi. with late '99 7.3 PSD, 87k mi.
Mods: Clamp,Hutch,Harpoon,Bellowed up pipes,Gutted EBPV,Blank Pedestal, IAH Delete, 2326 Air Filter, NAPA 4911 fuel pre-filter (Stanadyne FM100)

"I guess we should probably exchange insurance information. I have none." - Homer Simpson (after a car accident)
Reply With Quote
  #3 (permalink)  
Old 07-18-2004, 03:31 AM
Jacobely Jacobely is offline
New User
 
Join Date: Jul 2004
Posts: 6
Jacobely is starting off with a positive reputation.
The smoke is white.
Reply With Quote
  #4 (permalink)  
Old 07-18-2004, 04:24 AM
fellro86's Avatar
fellro86 fellro86 is offline
Iowa Benevolent Dictator
 
Join Date: Feb 2004
Location: Marengo, Iowa
Posts: 11,512
fellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud of
Whit indicate water, you may have a cavitation wear through, unfortunately common to the 7.3's. Did you use the coolant additive to try to stop the cavitation?
__________________
the workhorse:86 F250 4x4 6.9 Diesel 4-spd, 4.10 axles
the other workhorse 92 F350 2wd crew cab,3.55 rear axle, 92 6bt Cummins, NV4500
the project: 78 F150 4x4 shortbed 351 auto
Iowa Chapter leader, ASE certified parts specialist
Come on down and join us in the Iowa chapter, or your own local chapter!! Thanks, Roger
Reply With Quote
  #5 (permalink)  
Old 07-18-2004, 12:13 PM
Jacobely Jacobely is offline
New User
 
Join Date: Jul 2004
Posts: 6
Jacobely is starting off with a positive reputation.
If it was water wouldn't I notice some loss of fluid in the radiator? I haven't lost even the smallest amount.

I think that it is fuel as my truck, being bio-d, is pretty ripe and, having been engulfed in it on a number of occasions (picture putting your head over the stove vent of a cheap chinese restaurant) the smoke seems to clearly be smoke. Maybe I am overestimating my ability to tell...
Reply With Quote
  #6 (permalink)  
Old 07-18-2004, 12:19 PM
fellro86's Avatar
fellro86 fellro86 is offline
Iowa Benevolent Dictator
 
Join Date: Feb 2004
Location: Marengo, Iowa
Posts: 11,512
fellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud of
Perhaps being bio, it smokes different too. I guess more diagnosis will be needed to help determine. I am planning on trying straight wvo, so I have some to learn on this...
__________________
the workhorse:86 F250 4x4 6.9 Diesel 4-spd, 4.10 axles
the other workhorse 92 F350 2wd crew cab,3.55 rear axle, 92 6bt Cummins, NV4500
the project: 78 F150 4x4 shortbed 351 auto
Iowa Chapter leader, ASE certified parts specialist
Come on down and join us in the Iowa chapter, or your own local chapter!! Thanks, Roger
Reply With Quote
  #7 (permalink)  
Old 07-18-2004, 09:05 PM
Pikachu's Avatar
Pikachu Pikachu is offline
Postmaster
 
Join Date: Jun 2004
Location: Dallas, TEXAS!
Posts: 2,770
Pikachu has a great reputation on FTE.Pikachu has a great reputation on FTE.Pikachu has a great reputation on FTE.Pikachu has a great reputation on FTE.
Yeah, it sounds like a fueling problem like bad injector, perhaps. Especially since you aren't using any coolant. Does it seem to be misfiring at all? That usually, but not always, happens with a bad injector.
__________________
Boeing 747-400, Early '99 F350 4x4 std. cab, 217k mi. with late '99 7.3 PSD, 87k mi.
Mods: Clamp,Hutch,Harpoon,Bellowed up pipes,Gutted EBPV,Blank Pedestal, IAH Delete, 2326 Air Filter, NAPA 4911 fuel pre-filter (Stanadyne FM100)

"I guess we should probably exchange insurance information. I have none." - Homer Simpson (after a car accident)
Reply With Quote
  #8 (permalink)  
Old 07-19-2004, 07:30 AM
Jacobely Jacobely is offline
New User
 
Join Date: Jul 2004
Posts: 6
Jacobely is starting off with a positive reputation.
Yes, it is misfiring. Definitely this smoke has been simultaneous with rougher running. How would I go about determining which (if any) injector is bad?
Reply With Quote
  #9 (permalink)  
Old 07-19-2004, 08:22 AM
fellro86's Avatar
fellro86 fellro86 is offline
Iowa Benevolent Dictator
 
Join Date: Feb 2004
Location: Marengo, Iowa
Posts: 11,512
fellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud offellro86 has much to be proud of
You loosen each injector line and listen like you would pulling a spark plug wire, but I would recommend just doing them all, not really that expensive, if you go rebuilt.
__________________
the workhorse:86 F250 4x4 6.9 Diesel 4-spd, 4.10 axles
the other workhorse 92 F350 2wd crew cab,3.55 rear axle, 92 6bt Cummins, NV4500
the project: 78 F150 4x4 shortbed 351 auto
Iowa Chapter leader, ASE certified parts specialist
Come on down and join us in the Iowa chapter, or your own local chapter!! Thanks, Roger
Reply With Quote
  #10 (permalink)  
Old 07-19-2004, 09:59 AM
Pikachu's Avatar
Pikachu Pikachu is offline
Postmaster
 
Join Date: Jun 2004
Location: Dallas, TEXAS!
Posts: 2,770
Pikachu has a great reputation on FTE.Pikachu has a great reputation on FTE.Pikachu has a great reputation on FTE.Pikachu has a great reputation on FTE.
If you have access to an infrared heat gun, you should be able to tell which cylinder isn't firing by shooting close to the heads on the exhaust manifolds. The bad one(s) will read significantly lower than the rest with the engine running.
__________________
Boeing 747-400, Early '99 F350 4x4 std. cab, 217k mi. with late '99 7.3 PSD, 87k mi.
Mods: Clamp,Hutch,Harpoon,Bellowed up pipes,Gutted EBPV,Blank Pedestal, IAH Delete, 2326 Air Filter, NAPA 4911 fuel pre-filter (Stanadyne FM100)

"I guess we should probably exchange insurance information. I have none." - Homer Simpson (after a car accident)
Reply With Quote
  #11 (permalink)  
Old 07-19-2004, 11:37 PM
thechad's Avatar
thechad thechad is offline
Junior User
 
Join Date: Jul 2004
Location: Ione, CA
Posts: 68
thechad is starting off with a positive reputation.
I recommened checking your air cleaner and running some deisel injector cleaner, because a dirty air cleaner will restrict air and less air = less complete combustion. I havn't had any smoking running a k&n and injector cleaner every 4th tank (85+ redline works good). just a thought
Reply With Quote
  #12 (permalink)  
Old 07-21-2004, 08:07 AM
rstcso rstcso is offline
Freshman User
 
Join Date: Apr 2004
Location: Round Rock, TX
Posts: 36
rstcso is starting off with a positive reputation.
I had an injector shop tell me the IP would need to be replaced for a similar problem. He said the advance mechanism wasn't working correctly. I asked him how that was effecting the operation. He asked if I was seeing white smoke at startup, then it goes away. This is what I was seeing. He also said if I didn't mind the little puff of smoke, not to worry about it for now, but eventually I would need to replace the IP. Since I'm still getting better than 18mpg around town, I'm not going to touch it!
Brent
Reply With Quote
  #13 (permalink)  
Old 09-12-2004, 06:55 AM
ctbiodzl ctbiodzl is offline
Junior User
 
Join Date: May 2003
Location: CT, USA
Posts: 51
ctbiodzl is starting off with a positive reputation.
"Perhaps being bio, it smokes different too. I guess more diagnosis will be needed to help determine. I am planning on trying straight wvo, so I have some to learn on this..."

I use biodiesel in my '93 F-250. It doesn't smoke. Biodiesel won't by itself cause smoke. On the contrary, it cuts soot by 90%.
I also use a wvo/diesel blend. Don't bother trying wvo to cure the smoke.
#1. Can only use <=50% wvo in a stock, unheated fuel system.
#2. Has similar smoke production of biodiesel, ie, very little soot.
__________________
220K miles on biodiesel and WVO in VW TDI.
33K miles on biodiesel and WVO in a '92 F-250 n/a 7.3L diesel.
Reply With Quote
  #14 (permalink)  
Old 09-12-2004, 11:38 PM
Spectramac's Avatar
Spectramac Spectramac is offline
Posting Guru
 
Join Date: Oct 2003
Location: Monroe, WA
Posts: 2,436
Spectramac is gaining momentum as a positive member of FTE.Spectramac is gaining momentum as a positive member of FTE.
Bio wreaks havok on the injection system, you probably need a new inj. pump.
__________________
Malcolm

97 Explorer 5.0 AWD
87 F250 6.9 CTS turbo
Reply With Quote
  #15 (permalink)  
Old 09-13-2004, 12:47 AM
HardScrabble HardScrabble is offline
Elder User
 
Join Date: Aug 2003
Posts: 813
HardScrabble is starting off with a positive reputation.
Quote:
Originally Posted by Spectramac
Bio wreaks havok on the injection system, you probably need a new inj. pump.
Where did that come from? What kind of problem would you expect?

I have heard of BIO attacking some old rubber and gelling in cold weather, anything else?
Reply With Quote
Old 09-13-2004, 12:47 AM
Reply

Go Back   Ford Truck Enthusiasts Forums > Diesel > Bio-diesel, Propane & Alternative Diesel Engine Fuels

Tags
1990s, 73, biodiesel, diesel, smokey, till

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump



All times are GMT -5. The time now is 12:06 PM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup