Rain in the exhaust

A good hard down pour will put lots of water down the pipe, and we get those often enough. A tin can works great, but there are times where you forget, or think it's only gonna be overnight and it's not SUPPOSED to rain.... A rain cap works for us, and I've never seen one blow up in the wind yet.

Donovan from Wisconsin

Here's betting you'll have about 90% more water in the rain gauge than in the can in the exhaust pipe. WHY? 2 reasons. The tractor creates and updraft, thus very little of the actual rain fall goes down the stack. Secondly 50% of what does go down the stack, runs down inside of mufler and exits between exhaust pipe and mufler. That is not a water proof clamp.

Then after doing that, unscrew the exhaust pipe loose enough so it touches hood. Water will run along the hood, follow the pipe down and fill one cylinder plus the manifold in 20 min, of heavy rain.

Yes, I agree if the tractor is out there more than one day the exhaust should be covered and covered well. A can that fits tightly over pipe is the only sure way to keep water out. This is why I say one day is ok, after that rust starts.

One of the most common deflections is one of those stack flap covers, wind blows it up and in turn it deflects water down the stack. Park the tractor well away from high buildings or trees and most important keep the exhaust system tight.

If your parking it outside long term, put a tight soup can over the stack, and again make sure you exhaust is tight. I've been running tractors for over 50 years, 9 of them at one time during the 70s and 80s. I never covered a stack overnight, and the only time I ever saw excessive water was a Farmall 300 with exhaust pipe loose in manifold. In a 2" rain fall, enough water ran along the hood, followed the pipe, filled one cylinder and manifold to the top. We took out the plugs, cranked it a few revs, put the plugs back and started it.

The same 300 and a 560D, nothing over stacks, in middle of an open field in a 9" rain fall in 24 hours. Nothing blew out the stacks when we started them. The difference tight exhaust and no deflections.

• Hobby farm

I would suggest looking right here on this site. I did a quick search and found over 1000 hits and the first ones were in the store section.

Don't worry about appearance they have been a very common add on for over 50 years.

jt