Making the exhaust quieter?
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    Making the exhaust quieter?

    I have an 2016 x738. Has anyone made their exhaust quieter without causing to much exhaust restriction to lose power? I would like to mow without the need of hearing protection.

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    mjncad's Avatar
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    Most of the noise comes from the deck, or it seems that way to me.

    However; I've thought of using Boom-Mat or Dynamat under the hoods of my 4200 and X754.

    Boom Mat Sound Insulation Products | Design Engineering Inc

    http://www.dynamat.com/

    I just haven't looked into it to proceed.
    JKR, darkrt, Fozsey and 1 others like this.
    I have more ideas than ambition.


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    I personally would not mow without hearing protection. It's the overall same concept as riding a motorcycle without hearing protection. Constant wind noise is one of the more dangerous sounds to our ears. I picked up a set of the Bose QC 35ii just for the mower.

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    Keeper of the GTT Cookies dieselshadow's Avatar
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    Quote Originally Posted by TDavis1992 View Post
    I picked up a set of the Bose QC 35ii just for the mower.
    Do they have an actual Noise Reduction Rating or are you just using the Active Noise Cancellation? I've been on the search for a decent set of headphones that will allow you to wear a full brimmed hat and provide actual NRR. Noise cancelling would be a nice addition, but it does nothing for reducing the decibels reaching your ears and doing damage.
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    Itís very unlikely that it is the exhaust you are hearing. Itís the noise of the mower deck.
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    Comparing them to 3M just basic shooting muffs, they're not as quiet, but pretty close without anc turned on. The active noise canceling does reduce the decibels you hear by emitting sound waves at 180 degrees to sounds heard. This effectively cancels out the sound pressure that would have been exerted on your ear drum. I can tell a massive difference compared to when I was just using in ear headphones, I no longer feel like I've been on a construction site for 8 hours.

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    Keeper of the GTT Cookies dieselshadow's Avatar
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    Quote Originally Posted by TDavis1992 View Post
    Comparing them to 3M just basic shooting muffs, they're not as quiet, but pretty close without anc turned on. The active noise canceling does reduce the decibels you hear by emitting sound waves at 180 degrees to sounds heard. This effectively cancels out the sound pressure that would have been exerted on your ear drum. I can tell a massive difference compared to when I was just using in ear headphones, I no longer feel like I've been on a construction site for 8 hours.

    Sent from my SM-N950U using Tapatalk
    Thank you sir. I will look into these.

    I apologize for the hijack. Let's get back to noisy tractors!
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    Quote Originally Posted by dieselshadow View Post
    Thank you sir. I will look into these. 1gif:

    I apologize for the hijack. Let's get back to noisy tractors!
    Speaking to noisy tractors. I was actually discussing with my buddy on how to either, A. Put a temperature controlled electric fan clutch on my X758, or B. Just installing a high volume electric fan with a thermostat.
    I truly believe a large amount of the noise aer hear comes from that massive belt driven solid lock up fan between our knees.

    Then we discussed straight piping the little diesel with a hood stack lmao.

    Having worked around dry bulk blowing cement powder on to equipment and semi trucks with vac systems that will pick up a 20 lb rock from 2 feet away, I can without pause, say that wind noise is one of the most straining sounds on our ears. The closer the object gets to breaking the sound barrier during operation, the worse it gets. (Think of a whip cracking).

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    Quote Originally Posted by coaltrain View Post
    Itís very unlikely that it is the exhaust you are hearing. Itís the noise of the mower deck.
    I was going to suggest shutting off the engine to see if it was just the deck but then thought... wait... what? :-)
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    coaltrain's Avatar
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    Quote Originally Posted by jgayman View Post
    I was going to suggest shutting off the engine to see if it was just the deck but then thought... wait... what? :-)
    Well the opposite might show something to the OP - driving the tractor around without the deck running.....
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