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- Apr 3, 2002
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This is the latest muffler mod that I have done. The muffler on a Husky 359 is very restictive. It is a wonder the saw wants to run at all. There is a plate/baffle that runs across the inside of the muffler with a smallish 1/2" or so hole in it. From there a tube of about 3/8" lets the whole works out.
The front bracket that holds the muffler to the case is about an 1/8" from sitting flush on the muffler. This ruled out the ingenious way that Ken Dunn had used the bracket to hold the screen in place. I put a 7/8" hole above the bracket in the mufller and also straight through the inner wall too. This gives a straight shot from the exhaust port out. I then did my usual, weld a plate with a screen. The outlet is 5/8". In my experience that along with the stock opening works pretty well.
I didn't cut with the saw stock. From the sounds of the saw and the fact that it was so restictive is should have a good increase.
The front bracket that holds the muffler to the case is about an 1/8" from sitting flush on the muffler. This ruled out the ingenious way that Ken Dunn had used the bracket to hold the screen in place. I put a 7/8" hole above the bracket in the mufller and also straight through the inner wall too. This gives a straight shot from the exhaust port out. I then did my usual, weld a plate with a screen. The outlet is 5/8". In my experience that along with the stock opening works pretty well.
I didn't cut with the saw stock. From the sounds of the saw and the fact that it was so restictive is should have a good increase.
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