Go BottomModel 1450 Cadet
 | Gary Smyth
Join Date: Posts: 1 
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2004-06-16 88706
Started in high wet grass today. All fine until fifteen minutes in I started to hear a constant increase in LOUD. No decrease in cutting action or ability to move but the engine seemed to need to work harder and certainly when the throttle was applied the sound level increased. I don't have a sound pressure meter but it was ear hurting. I think that I blew a muffler or perhaps it disconnected. In any case the engine was too hot to do a search so drove it to the garage and logged on here instead. The tractor is 1974, 1450. Anyone ever kill a muffler? Is it difficult to replace a muffler? Did running it back to the garage damage it? Did no/reduced back pressure hurt the Kohler? Any other thing I should look at as I start to pull stuff apart in daylight? The parts are identified as 751-3029 for the muffler assembly but there are parts: 710-3100 Screw 5/16 x 18 x 5/8 Znd Hex Head, 736-0159 Washer .344 x .875 x 16 Ga, and 736-3007 Washer 5/16 Int Ext Tooth Lock Znd also listed. (not part of the assembly?) Any different than hardware store hardware?
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 | Art White
Join Date: Jan 2000 Posts: 6898 Waterville New York 
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2004-06-17 88736
Use at least grade 5 hardware as that is what the manufacturers use. ....
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 | yooperpete
Join Date: Jan 2004 Posts: 1413 Northern Michigan 
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2004-06-17 88740
I've never blown a muffler that needed replacement. Have a 1650 at hunting camp. On my 1864, the crimp going around the end caps of the muffler came loose. When the engine ran the end cap vibrated spinning around making an aweful noise. I repaired it by using a muffler cement, bonding the end cap to the main muffler cannister. Didn't need to disassemble anything except the shroud around the engine area to get at it. Fixed it in less than a 1/2 hour. ....
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