HS724 Muffler -is this normal? - Snowblower Forum : Snow Blower Forums
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post #1 of 28 Old 01-04-2020, 10:49 AM Thread Starter
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HS724 Muffler -is this normal?

Hello fine folks,
As mentioned in a prior post i said that my new to me thrower is rather loud and i asked about muffler options. I hopefully have attached a correctly sized pic to help with context.
To me it looks like an angry mini hulk punched his way out of the muffler cover...the edges appear ripped/forced open. Two questions: 1) is there supposed to be an opening here? 2) if no, how bad is this?
The thrower runs great, just loud.
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post #2 of 28 Old 01-04-2020, 11:29 AM
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In my years, I have seen mufflers on all sorts of machines rust out, popped out, and various in between.

I would say that muffler needs replacing to quit it down.
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post #3 of 28 Old 01-04-2020, 11:41 AM
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No, the hole is not normal. Here is what the muffler should look like.
https://www.ebay.com/itm/Exhaust-Muf...-/263236683069
If it was my machine, I would replace it.

1986 Toro 524 (Predator 212 Hemi, Impeller Mod.)
1997 Toro 724
1997 Toro 824XL Power Throw
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post #4 of 28 Old 01-04-2020, 12:07 PM Thread Starter
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Thanks folks - i assumed that the jagged edged hole wasn't normal, but wasn't clear if there was supposed to be a hole there at all - it appears that the shroud/heat shield would be an extra part as well.
I don't seem to be able to find a match on Amazon (well, the ones i do find don't specify HS724 model, but reference a few others that I think are generators? and smaller hp engines). Thanks for the link, but I don't have an ebay account and don't want to figure that out just now.

the rest of the snowthrower is in good shape, that muffler/shield is a bit tired.

Thanks for the replies.
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post #5 of 28 Old 01-04-2020, 12:52 PM
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Quote:
Originally Posted by bowenx View Post
Thanks folks - i assumed that the jagged edged hole wasn't normal, but wasn't clear if there was supposed to be a hole there at all - it appears that the shroud/heat shield would be an extra part as well.
I don't seem to be able to find a match on Amazon (well, the ones i do find don't specify HS724 model, but reference a few others that I think are generators? and smaller hp engines). Thanks for the link, but I don't have an ebay account and don't want to figure that out just now.

the rest of the snowthrower is in good shape, that muffler/shield is a bit tired.

Thanks for the replies.
no, that hole is not supposed to be there. i bought one of those aftermarket honda mufflers and it was loud. practically worthless. you get what you pay for I guess. maybe the one listed above from another member is better.

otherwise get a OEM muffler from boats.net or from a donor junk machine . close to $100 complete even from boats.

i'd try a better quality after market for 20-30 bucks.

"It Feels Like Beer O'Clock "
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post #6 of 28 Old 01-04-2020, 12:59 PM Thread Starter
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thanks - that is good to know on the volume of the aftermarket ones - maybe there is a reason they are priced around 15 bucks.

I had looked up the oem prices - found one on amazon for about 59 bucks - but i'm guessing i'd need/want the other parts too- if replacing one rusty/worn part it is highly likely that i'll end up needing to replace another on the assembly.

It is loud enough that i don't want to use it after it gets too dark as it will keep neighbors awake - my son was less than thrilled when i was using it during one of our storms. I had to wear hearing protection that I use at the range - even then it wasn't all that quiet - but i was able to not have a headache.
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post #7 of 28 Old 01-04-2020, 01:32 PM
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Maybe it would be possible to remove the heat shield and use pop rivets or sheet metal screws to attach a TEMPORARY patch with sheet metal to the muffler????

Toro 8/24 (38080) 1989
Toro 721-QZR (38743) 2015 (Hemi Predator Power)
Toro (51984) Hand Held Blower (For the light stuff)

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post #8 of 28 Old 01-04-2020, 04:58 PM
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My initial idea but I think that is just a shield.

Have to pull that, fix the muffler under it or the blast goes sideways and maybe into areas you don't want.


Still might be possible to pull it and patch the muffler under it - worth a look and or a try. The whole thing may be suspect as well and still need replacement.

1998 YT624 Have Owners and Service Manual, Rubber Disc Drive (not hydrostatic)
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post #9 of 28 Old 01-04-2020, 05:49 PM
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Get yourself an original (not aftermarket) replacement muffler. Also, if you're looking for a really nice job, have the hole in the shield welded up, ground smooth and have it powdercoated the same color as original.

Claude.

2004 MURRAY BRUTE 10HP 29"
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post #10 of 28 Old 01-04-2020, 06:39 PM
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Quote:
Originally Posted by bowenx View Post
thanks - that is good to know on the volume of the aftermarket ones - maybe there is a reason they are priced around 15 bucks.

I had looked up the oem prices - found one on amazon for about 59 bucks - but i'm guessing i'd need/want the other parts too- if replacing one rusty/worn part it is highly likely that i'll end up needing to replace another on the assembly.

It is loud enough that i don't want to use it after it gets too dark as it will keep neighbors awake - my son was less than thrilled when i was using it during one of our storms. I had to wear hearing protection that I use at the range - even then it wasn't all that quiet - but i was able to not have a headache.

I pretty much always wear earplugs if the machine is loud or not. Makes it much more peaceful and zen.
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