Valve Adjustment EPA 2017-2021 PACCAR MX Engines

[@michaelwelton343]

I have a 2 piece valve cover on a 2021 Peterbilt with a Paccar. Do I need to remove both pieces?

[@norb0254]

to adjust the valves yes

[@michaelwelton343]

@@norb0254 I found out I only needed to remove the top cover. Not both.

[@stanandstansfriend6019]

Nice tutorial John Goodman.😂

[@brumph7256]

Whew….so it wasn’t just me….😂😂😂

[@fernandougues3358]

What the side for the adj

[@مجیدبرادری-خ1م]

اندازه فیلرسرد دود وب چقدر هست. ؟

[@jerryhenderson136]

Do I a adjust both intake and exhaust on each turn ?

[@661godislove7]

Yes

[@chiquilin102081]

How often Every how many miles?

[@DEVIN-b3k]

Valve Adjustment - Complete the initial valve adjustment at 40k miles (1,200 hours), again at 160,000 miles (4,800 hours) and then every 160,000 (4,800 hours) for the life of the vehicle.