The McLaren F1 team has made a number of peripheral changes to Lando Norris' Mercedes power unit in a bid to eradicate a persistent fuel system problem.
McLaren was left significantly off the pace on Baku's long straights two weeks ago compared to Mercedes, with which it shares engines. But while some of its deficit was explained by intrinsic car weaknesses and by how it ran the Mercedes unit ...Keep reading

Source: McLaren targets Lando Norris’ costly fuel system issue with Singapore F1 power unit fixes