Re: Vertical exhaust

Posted by Hugh MacKay on February 13, 2008 at 02:57:23 from (216.208.58.145):

In Reply to: Re: Vertical exhaust posted by Bob Kerr on February 12, 2008 at 23:17:35:

Bob: My 300 once had threads bad on pipe going into manifold. We had tightened it several times, but it wouldn't stay tight. A heavy storm was forcast, and I watched as the operator put a cover over the exhaust, assumed that he had probably just tightened the pipe. Next morning I discovered the pipe was so loose, it was lieing against the hood. I turned it very slowly by hand until it fetched up. I took the plugs out and had water in 3 cylinders. I think when I started turning one cylinder was already full and the manifold had been full. When I took hood off removed pipe manifold was wet inside and the rain had been over for hours. 300 sheet metal unlike the H & M is one piece from front to back, (two sides and a center section). We could see where water ran along those to the pipe. That was only about 3" rainfall.

In contrast, I got caught once 300 and 560 both on flood plain, neither pipe was covered. It rained 9" in 24 hours. Flood waters came up, however trctors were on a high knoll, drawbar deep in water and we couldn't get to them other than by boat for 3 days. Didn't even try as the ground around them would have been soft from all the rain. On the 4th day We got out there, started them, they blew a bit of black soot, definitely nothing in the cylinders.

This is what sparked the debate at our farm on just how much water actually get down a stack, and what conditions make it worse. My dad argued that with tight exhaust in a an open field situation, very little water will get in the tractor. There were about 6 of us in that discussion. A few weeks later dad came in the barn one morning after a rain. He had a condom in his hand, course everyone got on his case as why a 60 year old would need that. However this was his proof on water down the stack, he had placed this in the stack of the 130 before the rain. There was water in it, but certainly no where near the rainfall we had. He had checked the rain gauge and figured about 10% got down the stack.

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