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JD mufflers

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Brad

11-06-2002 18:21:34




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Has anyone read the book "HOW TO RESTORE 2 CYLINDERS"? If so did you catch the part or has anyone ever heard of someone cutting the mufflers down to the same height as the air cleaners??? It said that from the factory the muffers and the air cleaners were the same heights??? True or false??? It also says that the aftermarket ones are to tall and you should cut them down. Has anyone done this??? If so HOW???? Thanks in advance.

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Stan - Florida

11-07-2002 18:10:26




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 Re: JD mufflers in reply to Brad, 11-06-2002 18:21:34  
On the A and G the mufflers were the same height, but I can't help you on the part number. I think the AR had a taller muffler than the air intake, but it was the same shape (no small taller part).

On the B, as someone said, the early styled model (s/n 60000 to 95999) ('39 and '40) had a muffler the same height as the air intake. All the B models from 96000 on up had the taller one with the small taller part.

Part number for the '39 and '40 is AB 1524 R and for the '41 and later (s/n 96000 and up) is AB 2700 R.

Stan

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casered

11-07-2002 07:27:14




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 Re: JD mufflers in reply to Brad, 11-06-2002 18:21:34  
I cant say which is correct, but after we restored our A I had people tell me ours wasnt the right length. We put on a polished stainless straight pipe that I had made the same length as the air stack. Most people seem to think that it is supposed to be longer to get exhaust fumes up away from the air intake so as not to suck them back into the engine. In defense of the shorter stack, I put ours on that way because most of the tractors that I have found in my john deere books are that way. Dont forget its your tractor and you can do it the way you want. Have a good one.

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SamH

11-07-2002 05:55:48




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 Re: JD mufflers in reply to Brad, 11-06-2002 18:21:34  
Brad, I have not read the book, but here is my remembrance of the mufflers on the styled tractors based on looking at them from the tractor seat for a lot of years. I'm not sure what is original to the unstyled tractors.

-The "B" muffler had an extension that made it taller than the air stack. This muffler fits the "B" only.
-On the "A", the muffler and stack were the same height. -The "G" had a taller muffler and stack that were side by side. I believe this as the same muffler used on the "60" - "720".

Either of these mufflers is available, so you should buy original and not try to cut one down. If you cut the top off, you will have an open stack and if you cut the bottom, you will have to weld the flange back on.

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Will P

11-06-2002 19:59:55




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 Re: JD mufflers in reply to Brad, 11-06-2002 18:21:34  
Now, B's up to I think 41, the muffler was the same hight as the air stack. After about 41 Deere made the muffler with the extension. The A's if I remember right, the muffler was the same hight as the air stack. I know the G's were the same hight as the air stack. Mufflers today have the extension on them. Unless you buy an exact reproduction one. To cut one down. Just cut the top off with a hack saw. The main body is the same size. Just cut the extension off.

Will P

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