Here is your one stop shop for all things related to the DISI K04 smoking issue.
Currently, I'm in the process of pulling all the information together, but I want this to be as complete as possible. If you have any additional information to add, please post it here or PM me so it can be added to the first post.
DISCLAIMER: Some of this info may not be confirmed, and may change over time. Please check back from time to time and see the latest.
Background:
Since the creation of the DISI motor in 2006, there have been reports over time of vehicles producing a white/bluish smoke under a prolonged idle. This is sometimes accompanied by a smell of 'burning oil'. Mazda is aware of this, and has even issued an M-tips bulletin (need to find currently) regarding the problem. This applies to the MS6, MS3, and CX-7, without any specific VIN breakdown.
The stock turbo (Hitachi-Warner K04) is a linear (journal) bearing design, and upon idle, oil creeps past the seals. There have been three part numbers known so far:
(building parts list)
Currently, there are many threads/posts from users who have experienced this issue and have had or are having the turbo replaced. In this thread, please post the following(copy below):
Year/Model:
Mileage:
Modded (yes/no):
Date Replaced:
Turbo Part # (from repair invoice):
Comments:
By building a list of information, users can reference this, and I will update as more info becomes available.
Links to other DISI smoking turbo threads:
MS3:
http://www.mazdas247.com/forum/showt...hp?t=123691179
MS6:
http://www.mazdas247.com/forum/showthread.php?t=123738005
Potential Areas for Improvment:
Option 1 - Install a second PCV valve and oil catch can. This was recommended by Cobb in one of their published reports, along with a how-to. Many users have found a gunk in their OCC after only a few days or just over a week. See this link for details.
Option 2 - Switch from 5w-30 to 5w-40 oil. The thicker oil is less prone to seeping past the seals. Also, the oil in the DISI motor shears quickly, so frequent oil changes are required for optimal protection.
There is reason to believe that the direct injection is causing a washing affect at idle that cause the oil to be washed off the walls and then burnt since the fuel pressure is significantly less at idle and it does not create proper atomization of fuel.
Thanks to bova80 and robin2660 for additional information.
Rev. 0 3/29/09 - Created thread
Rev. 1 3/29/09 - Added potential options, link to Cobb report
Currently, I'm in the process of pulling all the information together, but I want this to be as complete as possible. If you have any additional information to add, please post it here or PM me so it can be added to the first post.
DISCLAIMER: Some of this info may not be confirmed, and may change over time. Please check back from time to time and see the latest.
Background:
Since the creation of the DISI motor in 2006, there have been reports over time of vehicles producing a white/bluish smoke under a prolonged idle. This is sometimes accompanied by a smell of 'burning oil'. Mazda is aware of this, and has even issued an M-tips bulletin (need to find currently) regarding the problem. This applies to the MS6, MS3, and CX-7, without any specific VIN breakdown.
The stock turbo (Hitachi-Warner K04) is a linear (journal) bearing design, and upon idle, oil creeps past the seals. There have been three part numbers known so far:
- L3Y1-13-70ZA (as built on most DISI motors up to _______)
- L3Y1-13-70ZB (superceded A on _______)
- L3Y1-13-70ZC (current) - said to have a revised seal design to combat the recurring problem. Earliest repair I have found using this part # is Sept. 2008
(building parts list)
Currently, there are many threads/posts from users who have experienced this issue and have had or are having the turbo replaced. In this thread, please post the following(copy below):
Year/Model:
Mileage:
Modded (yes/no):
Date Replaced:
Turbo Part # (from repair invoice):
Comments:
By building a list of information, users can reference this, and I will update as more info becomes available.
Links to other DISI smoking turbo threads:
MS3:
http://www.mazdas247.com/forum/showt...hp?t=123691179
MS6:
http://www.mazdas247.com/forum/showthread.php?t=123738005
Potential Areas for Improvment:
Option 1 - Install a second PCV valve and oil catch can. This was recommended by Cobb in one of their published reports, along with a how-to. Many users have found a gunk in their OCC after only a few days or just over a week. See this link for details.
Option 2 - Switch from 5w-30 to 5w-40 oil. The thicker oil is less prone to seeping past the seals. Also, the oil in the DISI motor shears quickly, so frequent oil changes are required for optimal protection.
There is reason to believe that the direct injection is causing a washing affect at idle that cause the oil to be washed off the walls and then burnt since the fuel pressure is significantly less at idle and it does not create proper atomization of fuel.
Thanks to bova80 and robin2660 for additional information.
Rev. 0 3/29/09 - Created thread
Rev. 1 3/29/09 - Added potential options, link to Cobb report
