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
Yes, like the gear pump and would think a gear pump all together would
be a good option, but need to know more of the requirements/spec's
Back to the issues listed previously and that us outsiders can only
make an educated guess via the dead bodies out there
But from the outside viewing those dead bodies can gain a bit of vision
into their thought processes.
Like why did they plug in DLC on both mating surfaces, to then only
plate one surface? Sends a message that their focus is in that spot/area
On DLC, it is NOT a good candidate for lubrication, as diamond is both
the best thermal conductor known to mankind and the best non-stick surface
material known to mankind...lube film strength anyone? On that, diesel
is NOT a good lube to begin with, so using it on the best non-stick
material surface known to mankind is almost an oxymoron
Stay in that rat-hole of DLC and noodle why did they go to this exotic
material that is very expensive (includes secondary and most likely
tertiary processing...maybe more). Why? What were they trying to
solve with that band-aide?
Then why did they remove the coating from one of the mating surfaces?
On that, which one is no longer coated? The cam surface or the follower?
Betcha lots of DLC particles are in the debris...why? and that goes
back to why they added there in the first place
We can see where they are focusing on the rev's of the pump. Again,
betcha it is in the cam cavity and specifically the cam/follower
interface. Another betcha is the piston to follower and the hammering
that is consistent with all the reports to date.
OBTW, AQL (allowable quality level...AKA rejects or failures) normally
should be in the 0.XX% to 0.0X% range. Anything higher is not acceptable to
my standards and most all ISO9000 compliant firms.
Wish and/or wonder if Bosch has plumbed pressurized engine oil into
the cam cavity and re-routed diesel out of that cavity and directly
from the tank/filter(s) to the piston cylinder chamber to bypass the
cam cavity.
Then test the daylights out of it, including bio-diesel & lots of H2O
Just a theory...
be a good option, but need to know more of the requirements/spec's
Back to the issues listed previously and that us outsiders can only
make an educated guess via the dead bodies out there
But from the outside viewing those dead bodies can gain a bit of vision
into their thought processes.
Like why did they plug in DLC on both mating surfaces, to then only
plate one surface? Sends a message that their focus is in that spot/area
On DLC, it is NOT a good candidate for lubrication, as diamond is both
the best thermal conductor known to mankind and the best non-stick surface
material known to mankind...lube film strength anyone? On that, diesel
is NOT a good lube to begin with, so using it on the best non-stick
material surface known to mankind is almost an oxymoron
Stay in that rat-hole of DLC and noodle why did they go to this exotic
material that is very expensive (includes secondary and most likely
tertiary processing...maybe more). Why? What were they trying to
solve with that band-aide?
Then why did they remove the coating from one of the mating surfaces?
On that, which one is no longer coated? The cam surface or the follower?
Betcha lots of DLC particles are in the debris...why? and that goes
back to why they added there in the first place
We can see where they are focusing on the rev's of the pump. Again,
betcha it is in the cam cavity and specifically the cam/follower
interface. Another betcha is the piston to follower and the hammering
that is consistent with all the reports to date.
OBTW, AQL (allowable quality level...AKA rejects or failures) normally
should be in the 0.XX% to 0.0X% range. Anything higher is not acceptable to
my standards and most all ISO9000 compliant firms.
Wish and/or wonder if Bosch has plumbed pressurized engine oil into
the cam cavity and re-routed diesel out of that cavity and directly
from the tank/filter(s) to the piston cylinder chamber to bypass the
cam cavity.
Then test the daylights out of it, including bio-diesel & lots of H2O
Just a theory...
