26-11-2014, 01:54 PM
Those filings look indicative of a failed LP pump (copper armature breaking up).
I read something recently that described how the valve in the HP pump works. If the fuel pressure from the LP pump is below a certain value, the valve doesn't allow fuel into the HP compression side of the pump, but instead allows SOME fuel into the pump to lubricate it whilst cranking.
Did you change the fuel filter after changing the LP? maybe those bits of copper got into your new pump's lubrication valve, causing slow opening?
http://injectionpumps.redirectme.net/pum...ch_CP1.pdf - Page2
I read something recently that described how the valve in the HP pump works. If the fuel pressure from the LP pump is below a certain value, the valve doesn't allow fuel into the HP compression side of the pump, but instead allows SOME fuel into the pump to lubricate it whilst cranking.
Did you change the fuel filter after changing the LP? maybe those bits of copper got into your new pump's lubrication valve, causing slow opening?
http://injectionpumps.redirectme.net/pum...ch_CP1.pdf - Page2
