My Ford diesels will not run with back pressure. I got the wrong muffler at TSC once, made for an IH tractor and you couldn't see through the muffler from end to end. Knocked the baffle out where I could see through it to get it to work but it was useless as a muffler and found the right Ford spec. muffler (you could see through) and the engine ran fine.
When I had my cosmetically restored '79 JD 4230, it had a stupid little 1 � outlet on the muffler for a 100hp, 400 cu in engine. Drove me nuts. So I took it off and installed a 4" dia chrome after market pipe without a muffler. The exhaust manifold outlet on that tractor was large because the 4430, the 125 hp version of that machine used a turbo to get the extra 25 ponies.
Loved to take that big 6 to parades with flags all over it, idling along listening to that sweet music. Bystanders liked it too. Got a lot of thumbs up. When working it, I usually wore ear protection even though the Sound Guard cab helped. Sold it when I downsized my farming operation.
When I was a teen growing up, my mechanical mentor said the same thing about not to run the engine hard without exhaust manifolds attached and told me a story about having it happen to him. I never attempted to prove him wrong. Wasn't worth it.
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Today's Featured Article - Preventing Tractor Theft - by Staff. The discussion started with the following message: I have a JD A without key start or any locking device. Is there a best way to secure it so the chances of it being stolen are reduced? Following are some of the answers that were received: Take the rotor out of the distributor and hide after each use. The would-be thieves at least couldn't just get on and drive away.
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