Tappet Troubles Understanding Wear Behind the HPFP

Here is a proper way of replacing BMW 335i E90 E92 E93 High pressure Fuel pump replacement. A step by step guide to a HPFP N54 engine ... Biodiesel deposits can form on the pump roller as well as the tappet body cooling passages, which can lead to increased wear on the fuel pump components and ... High pressure fuel pump symptoms - jerking and missing - almost feels like a tranny problem, but it is motor related. Starter will spin excessively before ... ... out to be a oil leak from the gasket of the high pressure fuel pump ... back of the engine and whether or not its a costly job? Thank you ... The reason for this is aftermarket pumps use much stiffer springs, which massively increases the forces exerted on the tappet, wearing it out ... The reason for the new buckets failing is that the same friction that eats away at the bucket usually damages the surface of the cam lobe. - ... Long story short, like every component, HPFP will eventually wear out and fuel will leak around the pump piston and cylinder o-rings or ... 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 ... They could only tell me the basic codes behind ... A quick search of every mini forum out there proves that the HPFP problem never actually went ... ... cars and trucks themselves. We're always excited to learn about and ... out on the showfloor and to evaluate the parts and bits that ...