HPFP Tappet Wear A Comprehensive Guide to Prevention

Stock Problems/Issues - N14/N18 High Pressure Fuel Pump teardown and refresh - Hello, I just had my HPFP begin to fail with 61000mi on the ... Just replaced my HPFP on Saturday and pulled the cam follower to inspect. Looked great after 40k miles, virtually no evidence of wear. I bought a 2015 X5 35d out of the CPO program at the end of May 2019. ... valve on the HPFP) may have failed instead. It would have been easy to ... Long story short, like every component, HPFP will eventually wear out and fuel will leak around the pump piston and cylinder o-rings or ... I had my HPFP go out on me this past February. BMW in Vista CA wanted $12,000 USD to replace the entire fuel system. I ended up figuring out how to fix it ... 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. Today I discovered an oil leak under HPFP. Does anyone know what this could be? Not valve cover and not OFH. It looks like HPFP gasket ... Alrighty then, this is what I start out with: this is the old pvt adapter from the WDS and a home made fuel pump jumper. The jumper will work ... 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 ... Fuel pump, fuel filter, plugs & wires high pressure fuel pump, injectors.. ALL HAVE THE SAME SYMPTOMS 😅