turbo question
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=208681
Printed Date: 27 Oct 2025 at 1:08am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: turbo question
Posted By: Kevin210
Subject: turbo question
Date Posted: 26 Oct 2025 at 7:42pm
Is there a direct bolt on replacement
turbo for to3 air research turbo on
a 220/210 besides another one.
One that is bigger say like a switzer 3lm 466
0r similar.
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Replies:
Posted By: DrAllis
Date Posted: 26 Oct 2025 at 8:22pm
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The next logical step up in a 210-220 Air-Research turbo is a very small step, but nevertheless is configured to replace the old T0-4 V-band clamp compressor housing. Any Air-Research brand turbo that fits a 7030-40-45-50-60 will bolt right on and the exhaust will come out thru the hood in the same place. Now, don't think you're going to do this with a USED turbo. The 7000-series turbo must be "clocked" to fit backwards on the engine and you'll never get that accomplished on a used unit. So, go with a reman or new. Anything for even more performance has an off-center turbine shaft and will require everything to be different/changed including the hole in the hood unless you can fab up an elbow to meet the hood hole.
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Posted By: Kevin210
Date Posted: 26 Oct 2025 at 8:46pm
So what does clocked mean Dr,that's above
my knowledge.
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Posted By: DrAllis
Date Posted: 26 Oct 2025 at 9:15pm
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If you take any turbo and mount it around bass-ackwards, the oil lines and compressor outlet won't be aimed at where they now need to be. The center section and compressor housing need to be rotated (clocked) to get things pointed where they need to be. Unfortunately, the bolts on the exhaust housing will be rusted in place. The center section will be rusted in place. All this due to the exhaust heat over the years of use. Some turbos will be impossible to clock. Some might not be too bad with an experienced person and a torch to heat things. Just don't plan on it.
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