Re: Tractor Muffler Designs????

Posted by RAB on October 25, 2006 at 02:05:40 from (86.142.139.55):

In Reply to: Tractor Muffler Designs???? posted by davpal on October 24, 2006 at 22:12:22:

AS previous post pointed out, fire risk if underneath the tractor. Relatively many fires in hay crops from the relatively few under-tractor exhausts - mainly from petrol/paraffin burners (sparks, hot carbon). So actually a bad idea for most tractors.
Any tractor manufacturer could reduce the noise simply by fitting a MUCH larger silencer. Why not - because of cost and visibility and etc....
They fitted cabs instead insulating the driver from the noise, heat and other irritants along with safety in mind these days.
So I would disagree with you when you say "shortsighted". They did the best job possible under the constraints placed on them.
You obviously didn"t notice some tractors had a small drain hole at the lowest point on the system (eg Fordson Diesel Major), but those extra bends cost fuel efficiency and manufacturers wanted exhausts through the hood instead of out the side (for those extra horses, efficiency, aethsetics and for fitting loaders etc). Compromise, compromise all the time.
By the way, the best rain caps were those supplied by the manufacturers (eg Oliver) and fitted each time by hand. The only thing there, back in the 40s, was that the exhaust sat inside the manifold and water could run down the side if the exhaust stack and into the manifold (where, of course, there was a small drain hole in the bottom of the exhaust manifold).
Oh, er, why were ALL Fordsons not fitted with underslung exhausts if it was such a good idea? I really am surprised that with all your trawling through the archives that you needed to ask this question at all. I might suggest that you take up the challenge and design a system, sell the license to use it, to the tractor manufacturers, and make yourself rich.
Regards, RAB

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