yep - otherwise you need ear plugs..
Anyone work on the detroit diesels? - My guidance to all my mechanics while inspecting the "green leakers" were, Agar oil nahin leak kar rahai hai - to foran band karo aur oil daalo, oil khatam ho gaya hai.
working on Deutz engines is classy too, aircooled diesel POWAH - engine speed = 1400 rpm - output torque - forget about it, no need to measure you can tow a train with this engine.