Re: Rain Cap

Posted by Hugh MacKay on May 28, 2006 at 02:43:44 from (216.208.58.173):

In Reply to: Re: Rain Cap posted by bradk on May 27, 2006 at 20:52:38:

Brad: To start with you were the one that started the name calling. You didn't comprehend much of what I had to say in either of my posts. May I suggest you go back and read word for word everything I had to say. I did say rain caps will work reasonably well on diesels. That has been my experience. It has also been my experience that rain caps don't work very well on gas engines.

If you put a rain cap on most gassers heavy enough to stay closed it creates too much back presure on the engine. Those little engines don't blow the volume of air diesels do. The gas engines also burn the edges on rain caps very quickly. I happen to know Mitch, and his tractor is a little offset Farmall, take note of the small pipe. If you leave those pre 1962 Farmalls plus the 140 and Cub out in the rain often, because of the design, they will have more water in the transmission than the engine even if the stack is left uncovered. Most makes of older tractors, prior to the early 60s were not very weather proof.

I farmed for many years, bought a lot of new tractors. In my lifetime I've owned 16 Farmalls, 1 Cockshutt, 1 Deere, 2 Case and 1 MF, most of those bought new or very close to new. Amoung them, 5 - 6 cylinder diesels, 2 of those equiped with turbos. I have never rebuilt a diesel under 10,000 hours, and those 5 diesels probably logged about 75,000 hours on my farm. Those diesels all came new with rain caps, and yes many times I've seen those caps wide open in the rain and wind. I can tell you that if those diesels were not being used for a week or more, a bucket with a wire bail was placed over the stack and rain cap as insurance, and tied in place. I might add, I've seen those diesels, with good rain caps, blow just as much black wet crap after a rain as my old Farmall 300 with nothing over the stack.

Now, I want you to tell me why those other 16 gas tractors I bought in my lifetime, did not come equiped with rain caps. Did you ever think, maybe the manufacturers knew rain caps wouldn't work on gassers?

If rain caps were so damn great why have most new tractors and construction equipment gone to exhaust systems that don't go directly down to a manifold or turbo. Those new exhaust systems all have a low point with a drain, before water can get to a manifold or turbo. Most of them don't even use rain caps anymore.

Replies:

• Re: Rain Cap bradk 06:29:10 05/28/06 (0)

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