What part of the truck doesn't burn?

Where have you seen this? I have never seen parked tractors the exhaust covered, either on a farm or a dealer lot. I see the local dealer hauling equipment around with nothing on the exhaust all the time. I don't think it's as big of an issue as you've been led to believe, particularly on the newer stuff that has all the emissions choking the exhaust anyway.

 

Tractors around here have a pinhole in the elbow after the turbo to let the water pee out. No cans or anything placed over the stacks. Heck, I dont even see Wes Pandy of youtube infamy bothering to cap his multithousand dollar equipment. He just gets in them and goes, then again some of his tractors have a interesting black speckling from the shower

 

I live in the San Joaquin Valley where there is nothing but farmland for hundreds of miles in each direction and I have been rebuilding diesel engines in tractors, trucks and construction equipment since 1982; anyone who says equipment owners with vertical stacks that stay outside during rain and snow do not cover the stack is inventing a narrative. Rookie equipment owners do make this expensive mistake but never more than once.

Water will enter the cylinders that have open exhaust valves, that water will hydrolock those cylinders and those pistons will crack; that is not only what happens but anyone with any idea what is happening inside of a diesel engine would know why that happens even if they lived somewhere where it never rained.

Water runs downhill until it is captured and air passing over an open tube creates vacuum, that is not an opinion it is a reality in the physical world and can be proved by anyone willing to simply observe it; I have no need for "someone to lead me to believe anything" because I know these things based on my own vocation and 4 decades of experience.

If however someone has acquired their "knowledge" of these things via hearsay because they have no idea how these things work or why I can understand completely why they believe ridiculous things like farmers going out every couple of hours all winter long starting up their tractors instead of just dropping a coffee can over the stack or replacing a 15 dollar exhaust flapper.

 

the old tractors they put cans on the stack didn't have turbos. my grandpa used to do that too.

 

So hearsay is the source of your belief that turbos will stop water from running downhill into cylinders, thank you for making my point.

 

So you're telling us that you have never driven past farms and seen tractors with stacks uncovered? Have you ever started something with an exhaust flapper after a good rain, it doesn't stop anywhere near all the water from what I've ever seen. Who said anything about farmers going out and starting their tractor every couple hours all winter long, that would take a special sort of ignorance to believe.

 

I have been very clear about "what I am saying" and why I am saying it, all I have heard from you is the hearsay and assumptions that you have assembled with no understanding of equipment personally; ignorance is not a shame but arguing from a position of ignorance is evidence that the one arguing is comfortable with their ignorance.

 

Mine are not presumptions. I have only had two tractors with the flappers on them, yet these were much older tractors. The rest of them have had the bent pipes. I also do know Wes Pandy doesnt install a can on his Deere. Granted he will put them in a shed come winter.

 

Then what on earth does that have to do with whether vertical open exhaust pipes should be covered in the winter or when being transported long distances on trucks?

 

Rounded over exhausts eliminated the need for capping