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
NinerBikes wrote:
What came out in the results in the correspondence between VW and Bosch, much of which was redacted, was that there was a severe quality control cleanliness issue in manufacture and assembly of the HPFP units made in 2 German facilities, and that the required polish and internal finish was quite high. They moved production to Slovakia, and seem to be getting a better finished product now, but, IMHO, the design is still defective and faulty, certainly when the issue of alignment problems between cam and roller and follower and failure is well documented early on in the correspondence.
The problem is, is that kind of cleanliness reasonable to expect from a unit operating in the field as opposed to the factory?
Is the issue with respect to surface cleanliness during the coating process and assembly at the factory?
Once it gets out in the field, it is unavoidable that some contaminants get thorough the filters, plus lots of particles sneak through at each filter change.
If the system is taken apart, more particles shed both upstream and downstream.
Rather fragile to me.
