844 Cranks
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=94327
Printed Date: 17 Jul 2025 at 7:49pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 844 Cranks
Posted By: Lazyts
Subject: 844 Cranks
Date Posted: 26 Aug 2014 at 9:22pm
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A friend inherited some Allis parts when he bought a shop in town, including 2 or 3 crankshafts for 844 engines and an HD21 U blade. I can find out more info if someone is interested- one of the cranks has been ground down for sure.
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Replies:
Posted By: big al
Date Posted: 30 Aug 2014 at 7:01am
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there should be a casting # on the cranks(on the counter weights) they made several variations.the underground cranks are tricky because some underground bearings are no longer available.
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Posted By: Lazyts
Date Posted: 30 Aug 2014 at 8:27pm
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Any bearings are getting hard to come by... for the 516 engines anyway. I've never worked on an 844.
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Posted By: CAL(KS)
Date Posted: 01 Sep 2014 at 7:12am
I think the bearings from Approximately 1962 when they went to the 4 valve head on the 844's (1600H) all the way up to 4w-305 engines are all the same journal size and can be had without too much effort. i suppose there are variations with different power levels i dont know, but the early 3 valve engines (16000, 21000) and lanova 844's much harder to come by because the journals are smaller. personally i love the big allis crawlers but i would not want to go through another overhaul or bearings on an early motor.
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Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20
Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15
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Posted By: big al
Date Posted: 01 Sep 2014 at 7:04pm
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IF I REMEMBER RIGHT THERE ARE 2 DIFFERENT SIZE LOCATING DOWELS FOR THE MAIN BEARINGS,SO YOU HAVE TO WATCH THE BEARINGS YOU BUY.
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