tractorbeast 27 #1 Posted February 24, 2014 Nelson muffler repair: This is my first attempt at a help tutorial. I am not a pro at restoration what-so ever, but a Wheel Horse lover trying to save an original part on my tractor. I have learned so much from others with a passion for Wheel Horse,(or the other "Color" tractor's) I have high esteem for you all.... This topic covers a 1980 C-125 K-301 original style Nelson Muffler. The start of the damage was from the bottom bolt loosening and falling off. This allowed the muffler to vibrate freely, only held in place by the U-clamp on the engine exhaust pipe nipple(Not sure on the correct terminology for this connection point). After an unknown amount of vibrating, the center pipe of the muffler snapped off, shown in picture "a". The "In" side of the muffler pulled right out. Unfortunately I failed to take a pic of the original damage. Picture "b" shows the repaired center "baffle" pipe. Picture "c" shows a-look see down the inside of the muffler- gives you an idea how the muffler works. I made the repair with a piece of EMT, electrical conduit. I measured the distance from the bottom chamber of the muffler to the top where the pipe snapped off.I didn't have the exact diameter of pipe so I used the original piece of baffle on the bottom where it fit snugly into the bottom chamber of the muffler. I had to grind down the end of the baffle pipe slightly to fit into the bottom chamber of the muffler, and yes you have to drill all of the holes!!! Pic d., shows an end look at the baffle tube, with a solid center plate.. Picture e. shows the baffle pipe inserted ito the muffler body. Put the muffler on for a mock-up mount and mark the proper position befor final welding. The diagram in picture "f" shows how the hot gases flow through the muffler. I put three good coats of paint on final finished muffler with, Picture "g" VHT high temp paint. This repair has been snow pushing tested. Over one hour of eight inch snow moving in NorthEast Ohio. 6 Share this post Link to post Share on other sites
daveoman1966 3,762 #2 Posted February 24, 2014 Muffler # 102258 for a Tractor model 1-0465 (12hp Auto No-name year) is ONLY $175.00.... Now I know why.... Jeeeeze Share this post Link to post Share on other sites
AMC RULES 37,141 #3 Posted February 24, 2014 Nice repair and documentation of the process... any picts of the finished product back in place on the tractor? 1 Share this post Link to post Share on other sites
