D21 Oil Cooler and other observations
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=166254
Printed Date: 21 Aug 2025 at 6:40am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D21 Oil Cooler and other observations
Posted By: DSeries4
Subject: D21 Oil Cooler and other observations
Date Posted: 30 Nov 2019 at 8:12pm
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A couple of things about my D21... I am putting new O rings in the oil cooler. From this picture, is there any way to remove it without getting the fuel lines out of the way? Reason I ask is that one of the sediment bowl valves are broken off and the tank is half full! How does it come apart from the coolant line as well? Looks like it is just held in with a seal. Any other hints would be appreciated.  Question number 2. The AGCO parts book shows one power steering cylinder, but mine has 2. Was there a change when the series IIs came out?  Many thanks! ------------- '49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080 |
Replies:
Posted By: Luke R.
Date Posted: 30 Nov 2019 at 8:42pm
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What’s your serial number? It can be done without taking off the fuel lines. You have to remove the fuel filter assembly though. The main coolant tube is just held together with an oring. It can be a bitch to get apart. ------------- 4-7030's,170G,220FWA,3-220's,210,D21II,D21I industrial,2-200's,3-190's,175D,2-D19D's,D19G,WD45,WD,CA,2-UCont.,5015FWA,917,B110,Gleaner F |
Posted By: DSeries4
Date Posted: 30 Nov 2019 at 10:10pm
Serial number 2408. First one built in 1966. I just hope the coolant tube goes together easily and doesn't leak! ------------- '49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080 |
Luke R. wrote:Posted By: DSeries4
Date Posted: 01 Dec 2019 at 1:10pm
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The Allis historians are working overtime investigating my 2 steering cylinders. This could be interesting. Stay tuned! ------------- '49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080 |
Posted By: SteveM C/IL
Date Posted: 01 Dec 2019 at 1:19pm
| How about a pic of the other end of steering cylinders. Curious about tie rod connections. |
Posted By: DSeries4
Date Posted: 01 Dec 2019 at 1:22pm
 
------------- '49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080 |
Posted By: DougG
Date Posted: 01 Dec 2019 at 1:26pm
| I bet yours is a D21 tractor that was 4 whl drive and converted back,, I know of a frame set up just like this and this was the rumor |
Posted By: Calvin Schmidt
Date Posted: 01 Dec 2019 at 2:57pm
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We are working overtime today !!! ------------- Nothing is impossible if it is properly financed |
Posted By: injpumpEd
Date Posted: 01 Dec 2019 at 3:24pm
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So, basically 2 one way cylinders if the one end had an inverted flare fitting with a hose clamp on it. That pitman sure looks factory. I bet Doug is right about the FWA theory. The only problem there is his being the first 1966 built, the FWA tractors were supposedly built in Jan 1967. I just love oddities! ------------- 210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers! |
Posted By: JayIN
Date Posted: 01 Dec 2019 at 4:00pm
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Watching! ------------- sometimes I walk out to my shop and look around and think "Who's the idiot that owns this place?" |
Posted By: SteveM C/IL
Date Posted: 01 Dec 2019 at 9:41pm
| Like Ed says,that pitman is no home made item. I'm thinking "Twilight Zone" !! |