Ford's answers to the NHTSA 6.7 Investigation
There was a request for a link to Ford's answer's to the NHTSA investigation posted on a previous thread, since closed. Here is the link: Ford's NHTSA Answers to the 6.7 investigation This PDF i...
Forum Discussion
Rick's current/new thread should be here and it's link http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/26558921.cfm
Because I think it is addressing H2O out of context, or am off base...
Must ask some questions of you folks
What does H2O mess up in the diesel injection system? I know enough about diesel
from before this current Bosch system. Knew that H2O was not good for the
parts in the injection system because they were not plated with corrosion protection.
That the injectors ate it as does or would my GMT400 7.4L's injection system
if H2O or enough H2O got into my gasoline system
Known issue with the Bosch pump, but am after a divide and conquer position
Does anyone know if the injectors or anything down stream from the HPFP fails
due to H2O? or should say fail catastrophically as noted in this discussion?
Goes back to the bad decision by Bosch to use diesel as the lubrication for
their cam/follower/etc.
That the mechanical injection system of several folks in my city (many MB's and one
Volvo) has no problems with Bio-Diesel. They have been running that stuff for
years and know so because there was a huge bugaboo about a family run business
asking for a permit for bio-diesel on their property (used to be and still is
a mechanic's garage.
I still think that addressing H2O is only a band-aide...the root cause is diesel
as a lubricant and the pump cam/follower/etc is also a poor design by not
capturing the piston to the follower
To address that root cause is to remove diesel as the lubricant and re-plumb
pressurized engine oil as a replacement for the cam/follower/etc lubricant.
Then re-plumb the diesel to the HPFP's fuel intake to by-pass the cam cavity.
If H2O is the true problem, then the system should continue to have these types
of failures
If diesel as a lubricant, then the pressurized engine oil should solve or eliminate
these failures...should qualify that, as that is to assume that the cam/follower
is acceptable in design for the PSI's or BAR's involved
What am I missing and am off base here?
Because I think it is addressing H2O out of context, or am off base...
Must ask some questions of you folks
What does H2O mess up in the diesel injection system? I know enough about diesel
from before this current Bosch system. Knew that H2O was not good for the
parts in the injection system because they were not plated with corrosion protection.
That the injectors ate it as does or would my GMT400 7.4L's injection system
if H2O or enough H2O got into my gasoline system
Known issue with the Bosch pump, but am after a divide and conquer position
Does anyone know if the injectors or anything down stream from the HPFP fails
due to H2O? or should say fail catastrophically as noted in this discussion?
Goes back to the bad decision by Bosch to use diesel as the lubrication for
their cam/follower/etc.
That the mechanical injection system of several folks in my city (many MB's and one
Volvo) has no problems with Bio-Diesel. They have been running that stuff for
years and know so because there was a huge bugaboo about a family run business
asking for a permit for bio-diesel on their property (used to be and still is
a mechanic's garage.
I still think that addressing H2O is only a band-aide...the root cause is diesel
as a lubricant and the pump cam/follower/etc is also a poor design by not
capturing the piston to the follower
To address that root cause is to remove diesel as the lubricant and re-plumb
pressurized engine oil as a replacement for the cam/follower/etc lubricant.
Then re-plumb the diesel to the HPFP's fuel intake to by-pass the cam cavity.
If H2O is the true problem, then the system should continue to have these types
of failures
If diesel as a lubricant, then the pressurized engine oil should solve or eliminate
these failures...should qualify that, as that is to assume that the cam/follower
is acceptable in design for the PSI's or BAR's involved
What am I missing and am off base here?
