what BBB says, if you're asking about the vented oil fill cap - if you're referring to the road draft tube, it should be gone

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics