-
Hello.
In order to download file attachments or view image attachments in full size, you must be registered/logged in and have a level 2 member account.
No worry, its all for free!
For more details - click here.
2011 Zetor - Resolution in site
- Thread starter farmer
- Start date
- Joined
- Jul 5, 2003
- Messages
- 4,021
- Location
- Laag Zuthem
- First name
- Renze
Machinery:
1976 5718
1978 5718 35kmh: Work in progress
1967 3011
A 8040 from 2011 would probably be a Proxima with a Tier 3A engine.
First, i would tell your local "expert" to stick his advice into a place where the sun doesnt shine: The 4.1 liter engine can produce those 80hp even without a turbo, without being overfueled. this engine is ran all the way up to 130hp, yours has only 85. Your problem has nothing to do with overfueling (unless you already had your local guy fiddle with it) but is related to the EGR system.
This model is a TIER 3A model with EGR. That means exhaust gas recirculation: burnt exhaust gases are routed back into the intake manifold to make it burn with less oxygen, reducing the nitrogen oxide emission to comply to the TIER 3A standard.
When you use the engine at too little output, the exhaust gas temperature will drop so low that the soot will sludge down into the EGR channel. when you suddenly increase the power output, and therewith the exhaust gas temperature, the soot in the EGR channel releases, goes through the combustion chamber and causes fat black smoke for a few seconds.
All EGR engines have this, the Volkswagen built 2.5TDI engine in my Volvo S70 does it, Ford Mondeos and Focuses do it, John Deere engines do it.
So, does the engine smoke all the time, or just after idling or working with low power output for a while, when you increase the power ?
If it only does it when you make it work after idling for a long time, its pretty normal, all modern engines do it. Only the TIER 3B engines with soot filters dont do it.
If it smokes all the time, your EGR valve is stuck.
Once more, the local "expert" you have asked, should do his homework better. EGR engines just smoke when worked after a time of idle or low power running. If your tractor blows smoke all the time (which would suggest there actually IS a problem in the first place) and your dealer cant fix it, call ZetorNA directly.
First, i would tell your local "expert" to stick his advice into a place where the sun doesnt shine: The 4.1 liter engine can produce those 80hp even without a turbo, without being overfueled. this engine is ran all the way up to 130hp, yours has only 85. Your problem has nothing to do with overfueling (unless you already had your local guy fiddle with it) but is related to the EGR system.
This model is a TIER 3A model with EGR. That means exhaust gas recirculation: burnt exhaust gases are routed back into the intake manifold to make it burn with less oxygen, reducing the nitrogen oxide emission to comply to the TIER 3A standard.
When you use the engine at too little output, the exhaust gas temperature will drop so low that the soot will sludge down into the EGR channel. when you suddenly increase the power output, and therewith the exhaust gas temperature, the soot in the EGR channel releases, goes through the combustion chamber and causes fat black smoke for a few seconds.
All EGR engines have this, the Volkswagen built 2.5TDI engine in my Volvo S70 does it, Ford Mondeos and Focuses do it, John Deere engines do it.
So, does the engine smoke all the time, or just after idling or working with low power output for a while, when you increase the power ?
If it only does it when you make it work after idling for a long time, its pretty normal, all modern engines do it. Only the TIER 3B engines with soot filters dont do it.
If it smokes all the time, your EGR valve is stuck.
Once more, the local "expert" you have asked, should do his homework better. EGR engines just smoke when worked after a time of idle or low power running. If your tractor blows smoke all the time (which would suggest there actually IS a problem in the first place) and your dealer cant fix it, call ZetorNA directly.
In simple terms. You have to get the catalyst hot enough to burn up the recirculate. If you don't it will burn black. Just like when you light a wood furnace,if you damp it down before it gets hot enough it will only smoke and smoulder not burn clean.
- Joined
- Jul 5, 2003
- Messages
- 4,021
- Location
- Laag Zuthem
- First name
- Renze
Machinery:
1976 5718
1978 5718 35kmh: Work in progress
1967 3011
Why did you replace your entire post with only one line ? Did you say something bad ?
And why not tell what turned out to be the problem "far more than an EGR valve" ?
In Poland we are blinding EGR. You should blind this B pipe:
http://imageshack.us/photo/my-images/815/egrr.jpg/
http://imageshack.us/photo/my-images/815/egrr.jpg/
- Joined
- Jul 5, 2003
- Messages
- 4,021
- Location
- Laag Zuthem
- First name
- Renze
Machinery:
1976 5718
1978 5718 35kmh: Work in progress
1967 3011
When no exhaust gas is recirculated, the engine breathes only fresh air, and burns hotter: More NoX is emitted, but you use slightly less fuel .
They do it on a lot of VW engines too, but my last 2.5TDI gave engine computer errors afterwards: I dont know if it kicks into limp home mode because it detects a malfunctioning EGR, but with my current, i dont want to take the risk.
With the Forterra engines they have purely mechanical engines, which cannot give error codes so its safe to blind it.
They do it on a lot of VW engines too, but my last 2.5TDI gave engine computer errors afterwards: I dont know if it kicks into limp home mode because it detects a malfunctioning EGR, but with my current, i dont want to take the risk.
With the Forterra engines they have purely mechanical engines, which cannot give error codes so its safe to blind it.
Similar threads
