4020 remove muffler

[Fordy20]

I'd appreciate any tips on how to remove the muffler on my 4020. Clamp is off but it won't budge - all least not being civil with it.

 

[tim s]

hearing it up with a torch will expand the pipe a bit,,taping around it with the ball pien end of a hammer will help too...

 

[Fordy20]

Thanks I might try that. Got to say the old muffler is starting to look better than it ever did though.

 

[SVcummins]

Per the 1966 John Deere service bulletin start the engine when removing the muffler so pieces of carbon and rotten muffler don?t get inside the engine

 

[SVcummins]

I split them in several places with a grinder then use a cold chisel to spread the old muffler flange apart sometimes you have to cut almost all the metal away before it?ll come . A torch is a good idea if you have one

 

[THORNHILL]

I just replaced my muffler with a straight pipe on my 4430. Was siezed solid too, took 15 min with the cutting disk and a good common screw driver. Just take your time try not to cut the cast manifold.