So many potential issues in the common rail design by Bosch
These just off the top cuz it's been a few years since that long discussion
on this forum (I'm not a diesel person, but learned a lot on that
discussion)
- Using the fuel as the lube for the pump
- DLC coating only on one side
- DLC plating requires extreme surface prep
- Not capturing the piston rod to the cam follower
- Poor CP4 crank case lube flow properties
- Cavitation potentials in many spots inside the CP pump
- DLC will NOT wet by any lube
- Cam and follower design requires extreme concentricity and tolerance
- No accumulator on the high pressure side of the CP4
- unplated injector parts
Particulate filtration only one aspect of keeping the CP4 from self
distruction
H2O in whatever form is another that will wreck havoc. Sister just
bought a diesel Mercedes E class sedan and they plan to use bio-diesel
because it is 'cheaper' than regular diesel. Won't listen to anything
I've warned them about.
Had it after they both argued that the Mercedes BlueTec fluid is a
custom chemical different than the DEF stuff other diesel's use...told
them to just pee in it after a few cans of German beer... :B
