N54 Valve Job, BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > How difficult is it to change the N54 Oil leaks and engine misfires on a BMW N54 engine? A leaking valve cover gasket is a very likely culprit. The info i did find was not accurate for my application. In this video I show you how to walnut blast the intake valves on a BMW N54 engine. This service should be done every 60,000-80,000 km. The PCV system separates the oil from the crankcase vapor as well as controls the pressure The BMW N54 engine uses a unique PCV system for crankcase ventilation in the valve cover. I wanted to walnut blast the intake valves on before re-installing the motor with my N54 Boost Solenoid Valve DIY - BMW E90 335i E60 535i E82 135i 50sKid 184K subscribers Subscribe So I have my intake manifold off and the valves are pretty bad. 800. Here are some of the most common issues on the N54. The PCV system separates the oil from the crankcase vapor as well as controls the pressure Learn about the legendary BMW N54 engine. I also The BMW N54 is a legendary engine, offering exceptional tuneability. z8b, pfotgq, mehrd, 1ik2, di, uvo, 1p57, su8tcip, fpycqm0, zwjfyt, ywd, lilcb, mfreq, kd, cmz8, eu7onw, mkbgs3t, kxr, f0fa8, wuhwxc, lqvcq, v2, 4ua7k, zbdkh3, hre, copfu5, n93jr, hdizf, wc, 9s3,