WTB: 170 175 gas Nelson muffler
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=206880
Printed Date: 31 May 2025 at 8:51am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: WTB: 170 175 gas Nelson muffler
Posted By: Tracy Martin TN
Subject: WTB: 170 175 gas Nelson muffler
Date Posted: 28 May 2025 at 7:41pm
I want to buy a new Nelson muffler for a AC 170 gas. The Stanley is driving me nuts! Any help appreciated. Thanks, Tracy
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No greater gift than healthy grandkids!
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Replies:
Posted By: Alvin M
Date Posted: 29 May 2025 at 5:19am
Posted By: Tracy Martin TN
Date Posted: 29 May 2025 at 8:16pm
While we are at it, what does the original Nelson muffler for a 170 gas look like? Is outlet centered or close to one edge of oval body? What diameter is inlet? What diameter is outlet. Parts manual shows a different number for diesel and gas. Any help appreciated. Tracy
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No greater gift than healthy grandkids!
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Posted By: DrAllis
Date Posted: 29 May 2025 at 9:52pm
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Original 170/175 gas muffler looks very much like a 180/185 muffler except the exhaust pipe is smaller in diameter but about the same height and offset. The 170/175 gas muffler is outlet is offset and identical to a series 4 D-17 except the exhaust pipe is a little bit larger in diameter (rated speed now at 1800 RPM) and taller like a 180/185. I have a 180/185 muffler on my 170 and also had one on my Dad's series 4 back in 1971 or 72. It requires sliding a larger diameter pipe over the existing exhaust manifold pipe and plug welding it to get the muffler to fit correctly. They do sound better with that larger outlet !!
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Posted By: Tracy Martin TN
Date Posted: 30 May 2025 at 9:49pm
DrAliis, thanks for info. I wondered what diameter the original was to compare with what I found. Thanks, Tracy
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No greater gift than healthy grandkids!
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