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NewsW
Aug 21, 2012Explorer
Those of you out there with the CP 4 Pump... here is the latest twist:
http://forums.tdiclub.com/showpost.php?p=3907598&postcount=3840
Cavitation would mean many things, including lack of lubrication.
Note the removal of the coating from one part and not the other.
That can mean the DLC coated parts have different surface tension characteristics with diesel fuel.... or contaminants like water... or...
Summer is nearly over... and I am now sitting around waiting for the failure reports to come in for the next iteration of the analysis.
http://forums.tdiclub.com/showpost.php?p=3907598&postcount=3840
Quote:
Originally Posted by storx View Post
I just recently installed a fuel pressure gauge in my car because I been wiring up my gauges for big turbo install... I noticed that under full boost at higher RPMs the gauge shows my inlet pressure to Bosch pump was dropping almost in half... I talked to dealership and according to there repair manual it's still within tolerance so I'm ordering a air dog unit pretty soon here...I have a 24valve cummins that suffered from IP failures from low fuel pressure so I'm not taking chances and just adding additional pump to assure solid pressure
Hmmmm... cavitation, if it occurred, could theoretically provoke a failure of the pump's HP section.
This is an interesting possibility....
Cavitation would mean many things, including lack of lubrication.
Note the removal of the coating from one part and not the other.
That can mean the DLC coated parts have different surface tension characteristics with diesel fuel.... or contaminants like water... or...
Summer is nearly over... and I am now sitting around waiting for the failure reports to come in for the next iteration of the analysis.
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