tdi smoke - Defender Source
Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions


Reply
 
Thread Tools
  #1  
Old December 1st, 2006, 03:42 PM
D90user's Avatar
D90user
Status: Offline
steve
109/110 ambulance-55 series I
Member
 
Join Date: Oct 2004
Location: Nevada
Posts: 1,447
tdi smoke

So I have noticed a little more smoke lately. White on startup untill she warms up a bit. That dosn;t worry me but when driving at night the headlights behind me illuminate smoke under load on the freeway... looks light in color but I can't tell.

Also I have noticed a slight blue color to the smoke sometimes ( ) My compression is even, and I don't seem to be burning oil. Timing belt is new, and intercooler is clean.

What should I do? I havn't adjusted the valves in a while so I'll probably do that next.

How much smoke is "norma"l for a tdi?
When adjusting the injector pump do you guys have any hints on how to get it right?

thanks in advance
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old December 1st, 2006, 05:52 PM
flippedrover's Avatar
flippedrover
Status: Offline
Tyler
'94 D-90
Member
 
Join Date: Dec 2003
Location: Ashburn,va
Posts: 3,125
Not sure about the rover tdi's but the ambulances at work will smoke if left to idle for long periods of time. Problem solved if left in high idle. Also either smoke or more than likely condensation when starting from cold when its cold out.
__________________
Can't you feel 'em circlin' (closin'in) honey?
Can't you feel 'em swimmin' around?
You got fins to the left, fins to the right,
and you're the only bait in town.
You got fins to the left, fins to the right,
and you're the only girl in town.

Jimmy Buffett


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #3  
Old December 1st, 2006, 06:51 PM
Baldewin's Avatar
Baldewin
Status: Offline
Chris Baldewin
Bastard 90
Member
 
Join Date: Aug 2006
Location: Republican Sanctuary of CA
Posts: 878
Steve,

You may want to try www.landrovernet.com. A lot more diesel users on that site!

Chris
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old December 1st, 2006, 06:54 PM
Gkase's Avatar
Gkase
Status: Offline
George Kase
1983 110 200Tdi CSW LHD
Member
 
Join Date: Oct 2003
Location: Glenview, IL, USA
Posts: 503
Steve,
I was just going to post the same question...my 300Tdi is rebuilt and I notice a puff on start up and light gray diffuse smoke blast when nailing the accelerator getting up to speed...anyone have some explanation or experience to share?
George
Reply With Quote
  #5  
Old December 1st, 2006, 08:48 PM
dmarchand's Avatar
dmarchand
Status: Offline
David Marchand
'97 D90 SW Arles
Member
 
Join Date: Sep 2003
Location: New England
Posts: 2,862
Registry
Quote:
Originally Posted by Gkase
Steve,
I was just going to post the same question...my 300Tdi is rebuilt and I notice a puff on start up and light gray diffuse smoke blast when nailing the accelerator getting up to speed...anyone have some explanation or experience to share?
George
I have had the same on my tdi since new. You could turn don the smoke screw possibly to reduce the smoke on full power if necessary.
Reply With Quote
  #6  
Old December 1st, 2006, 09:14 PM
Buckon37s's Avatar
Buckon37s
Status: Offline
Buck
Re-Fendered 90
Member
 
Join Date: Oct 2003
Location: Temecula, CA, USA
Posts: 3,376
Guys,

It is totally normal. At startup the fuel pump dumps fuel into the cylinders and you get a big puff of black smoke. On the road, if you don't smoke under full load, you have something wrong.

Believe in the smoke, love the smoke.
__________________
2009 King of the Hammers

BUCK Wild Racing
Driver: Me
Co-driver: Pat Quirk
Team 911

Rover Tracks
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
PSC
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
DJ Safety
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
West Coast Rovers
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reel Driveline
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Made it further than half of the other guys, but the Hammers won.
Reply With Quote
  #7  
Old December 1st, 2006, 09:40 PM
artm
Status: Offline
Arthur Maravelis
97 SW
Member
 
Join Date: Oct 2003
Location: Boston, MA USA
Posts: 985
Same symptoms for me but I don't feel this is optimal in a correctly tuned motor. It may be normal but that may be because we're all running them out of tune.

You are supposed to gradually feed a diesel fuel - not dump it by flooring it. I see plenty of big rigs flooring it and all I see is heat, no smoke.

Of course, all that smoke means unburnt fuel and higher EGT's. Not optimal but acceptable within limits.
Reply With Quote
  #8  
Old December 1st, 2006, 10:17 PM
Rod Hayward's Avatar
Rod Hayward
Status: Offline
Rod Hayward
95 D90 Green #2288
Member
 
Join Date: Nov 2004
Location: larkspur, co
Posts: 871
I'm not trying to come off as an expert, because I'm not, but last weekend I was speaking with a friend who is very knowledgable about engines, both diesel and gas. He was trying to explain to me why my 300tdi often showed visible smoke while more modern engines do not. It seems we pay a price for the simplicity of this engine. It only burns efficiently within a narrow range of conditions, whereas the newer electronic engines can make broader adjustments in timing, etc. that allow them to burn more efficiently through a broader range of conditions. With that said, he still had a lot of admiration for the little 300tdi.
__________________
8-track, gun rack, spittoon, gimbal mounted beer buoy, blah, blah, blah, blah......
Reply With Quote
  #9  
Old December 1st, 2006, 10:26 PM
Buckon37s's Avatar
Buckon37s
Status: Offline
Buck
Re-Fendered 90
Member
 
Join Date: Oct 2003
Location: Temecula, CA, USA
Posts: 3,376
Quote:
Originally Posted by artm
Same symptoms for me but I don't feel this is optimal in a correctly tuned motor. It may be normal but that may be because we're all running them out of tune.

You are supposed to gradually feed a diesel fuel - not dump it by flooring it. I see plenty of big rigs flooring it and all I see is heat, no smoke.

Of course, all that smoke means unburnt fuel and higher EGT's. Not optimal but acceptable within limits.
Let us all know when you get that optimal tuning figured out.
__________________
2009 King of the Hammers

BUCK Wild Racing
Driver: Me
Co-driver: Pat Quirk
Team 911

Rover Tracks
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
PSC
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
DJ Safety
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
West Coast Rovers
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reel Driveline
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Made it further than half of the other guys, but the Hammers won.
Reply With Quote
  #10  
Old December 1st, 2006, 10:40 PM
rover4x4's Avatar
rover4x4
Status: Offline
Phillip
1995 SW #487/500
Member
 
Join Date: Sep 2003
Location: The Old North State
Posts: 7,527
Registry
i dont know once the worn out perkins on our worn JCB backhoe gets warmed up if you give it gas it doesnt smoke. starting and warm up stage is a different story
__________________
Poor gas mileage gets you to the best places on earth
Reply With Quote
  #11  
Old December 1st, 2006, 11:53 PM
Buckon37s's Avatar
Buckon37s
Status: Offline
Buck
Re-Fendered 90
Member
 
Join Date: Oct 2003
Location: Temecula, CA, USA
Posts: 3,376
Were not talking about billowing black smoke. Were talking about light smoke that the headlights behind a vehicle will illuminate. If it does not smoke under full throttle you don't have enough fuel and you are losing power. Under normal light throttle, there should not be smoke.
__________________
2009 King of the Hammers

BUCK Wild Racing
Driver: Me
Co-driver: Pat Quirk
Team 911

Rover Tracks
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
PSC
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
DJ Safety
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
West Coast Rovers
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reel Driveline
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Made it further than half of the other guys, but the Hammers won.
Reply With Quote
  #12  
Old December 2nd, 2006, 12:06 AM
D90user's Avatar
D90user
Status: Offline
steve
109/110 ambulance-55 series I
Member
 
Join Date: Oct 2004
Location: Nevada
Posts: 1,447
Quote:
Originally Posted by Buckon37s

Believe in the smoke, love the smoke.
lol

I'm tending to agree with you on this Buck. I have been reading the UK forums and the visable at night through headlights seems to be a common statement.

Billowing smoke is not good, but that light grey under load seems to be normal.

Although I would like to get it as efficent as possible...any ideas on better tuning??
Reply With Quote
  #13  
Old December 2nd, 2006, 12:36 AM
artm
Status: Offline
Arthur Maravelis
97 SW
Member
 
Join Date: Oct 2003
Location: Boston, MA USA
Posts: 985
While a mechanical pump affords less tuning (across the entire range) than electronic, it should still be possible to find the settings for no smoke at full throttle. Again, plenty of non-electronic trucks run without smoke. Yes, I know we're taliing about light smoke and, yes, light throttle reduces it to none - that's what I meant by feeding the fuel.

There's a tuning thread already here. I've done it on a stock Tdi and am looking forward to redoing it when the new IC goes in next year.

I for one have found a way to get less smoke: I've been running with a cut exhaust only three feet past the downpipe and have seen no smoke out the rear!
Reply With Quote
  #14  
Old December 2nd, 2006, 12:12 PM
bterpstra
Status: Offline
Brian Terpstra
94
Member
 
Join Date: Jul 2005
Location: Evergreen, CO
Posts: 98
Quote:
Originally Posted by artm
While a mechanical pump affords less tuning (across the entire range) than electronic, it should still be possible to find the settings for no smoke at full throttle. Again, plenty of non-electronic trucks run without smoke. Yes, I know we're taliing about light smoke and, yes, light throttle reduces it to none - that's what I meant by feeding the fuel.

There's a tuning thread already here. I've done it on a stock Tdi and am looking forward to redoing it when the new IC goes in next year.

I for one have found a way to get less smoke: I've been running with a cut exhaust only three feet past the downpipe and have seen no smoke out the rear!
I've got a fair amount of experience with Mercedes diesels, both NA and TD in my G series. I agree - light smoke at full load is fairly normal. I also agree that dialing down the screw will at some point alleviate the problem, though you'll be causing a different issue by underfueling. You'll notice the power loss. Personally, I live with the smoking but since I live in the mountains and can't sacrifice the torque, I pretty much have to.
Reply With Quote
  #15  
Old December 3rd, 2006, 05:03 PM
mikeslandrover's Avatar
mikeslandrover
Status: Offline
Mike Hammond
110 200Tdi and a 2005 Scorpa SY250
Member
 
Join Date: Oct 2003
Location: Oxted, Surrey, England, U.K
Posts: 1,756
Registry
5% smoke at the last MOT, the man wasn't impressed
Had to turn the fuel down and re-present - no power. so it stayed that way for about a mile
__________________
Mike Hammond
Diesels.....great when they're going and so easy to work on.
Reply With Quote
  #16  
Old December 3rd, 2006, 10:30 PM
JFD's Avatar
JFD
Status: Offline
Julien Dalbin
05 Tdi 90
Member
 
Join Date: Mar 2005
Location: Dominican Republic
Posts: 1,888
I also do have smoke since truck is new (300Tdi without ECR).
I think part of smoke is also due to engine oil vapors going
in the air intake (pipe goes from engine top to air intake
system beetween filter and turbo), i'm planning to add
a decanter...so i can keep intercooler clean longer.
__________________
" Eventually everything connects - people, ideas, objects. The quality of the connections is the key to quality per se. "
- Charles Eames
Reply With Quote
  #17  
Old December 4th, 2006, 01:13 AM
D90user's Avatar
D90user
Status: Offline
steve
109/110 ambulance-55 series I
Member
 
Join Date: Oct 2004
Location: Nevada
Posts: 1,447
Julien,
I'd be interested in what you make up. Last time I cleaned my intercooler it was really gunked up. I remember you brought this up a while back and it seemed like a good idea.

let us know what you set up.
Reply With Quote
  #18  
Old December 4th, 2006, 06:35 AM
Gkase's Avatar
Gkase
Status: Offline
George Kase
1983 110 200Tdi CSW LHD
Member
 
Join Date: Oct 2003
Location: Glenview, IL, USA
Posts: 503
Jullen,
yes, please post how to do that add on
Reply With Quote
  #19  
Old December 4th, 2006, 11:20 AM
Buckon37s's Avatar
Buckon37s
Status: Offline
Buck
Re-Fendered 90
Member
 
Join Date: Oct 2003
Location: Temecula, CA, USA
Posts: 3,376
I hate bumming everybody out but I can guarantee that this mod will not take away any smoke. It may help to keep oil residue out of the intercooler, but thats it.
__________________
2009 King of the Hammers

BUCK Wild Racing
Driver: Me
Co-driver: Pat Quirk
Team 911

Rover Tracks
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
PSC
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
DJ Safety
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
West Coast Rovers
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reel Driveline
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Made it further than half of the other guys, but the Hammers won.
Reply With Quote
  #20  
Old December 4th, 2006, 12:33 PM
D90user's Avatar
D90user
Status: Offline
steve
109/110 ambulance-55 series I
Member
 
Join Date: Oct 2004
Location: Nevada
Posts: 1,447
As long as the smoke is normal it is fine with me, although I think I'll play with the injector pump to try to get it better.
I would like to keep oil out of the intercooler. Cleaning that thing is a PITA.
Reply With Quote
Reply

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Tags
tdi

Thread Tools

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
tdi blue smoke D90user Defender Technical Discussions 11 November 15th, 2007 11:07 AM
1995 SW 300 Tdi neo812 For Sale - Vehicles 6 July 31st, 2005 04:55 PM
1995 Land Rover NAS Defender 90 ST (300 Tdi) MDS For Sale - Vehicles 7 March 4th, 2005 08:55 PM
ECR New SS Exhaust Kits Coming soon TDI Too TDI Guy Misc. Chit-Chat 19 October 22nd, 2004 05:16 AM


All times are GMT -5. The time now is 12:00 PM.


Copyright