HPFP Problems? Tappet Wearout Could Be Lurking

Took me about 2 hours and lots of spilled fuel to get those suckers all out and the injectors pulled out. ... behind me after I was 3/4 of the way ... My hpfp has ~80k miles and im concerned its getting weak. (especially with E30-40 fuel) Would a weak pump cause a lack of power or rough ... ... wear, Be sure to prevent your timing cover on your cylinder head from stripping, by installing our FSI High Pressure Fuel Pump (HPFP) Stud ... How to inspect/replace the HPFP's lifter bucket on Gen2 Nissan Armada (2017+) & Infiniti QX56 (2011-2013) & Gen1 Infiniti QX80 (2014+). ... tappet, (5) Pressure control valve, (6) Pump housing ... If implausible values are read out from the control unit, additional checks can be carried out. I took the high pressure fuel pump apart trying to figure out how the diaphragms go back in Mechanic's Assistant: Okay, I'll connect you to the Mechanic to ... On my 2018 the bolts that hold the HPFP down have sheared off TWICE now. First time was about 200 miles ago, and about 2k after the cam phaser ... If the oil is dirty then the tappet maybe does not move as freely as it could inside the housing and the roller does not firmly follows the cam. That thing is fairly well buried behind ... Don't get me wrong, I trust the truck, but when you work a truck hard daily things break and wear out. I have a 6gen Camaro Ss with a blower, lt4 pump/injectors and a built bottom end in the shop. Car was previously built and tuned elsewhere.