wd 45 engine removal
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=42528
Printed Date: 23 Aug 2025 at 10:19am
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Topic: wd 45 engine removal
Posted By: chris502
Subject: wd 45 engine removal
Date Posted: 22 Dec 2011 at 3:59pm
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We are trying to remove the engine from a wd 45 we have everything ready to come out but it will not come out fully. We think that there is something holding the clutch plate on the shaft but we cannot visibly see anything holding it. Any info would be appreciated and I checked another thread but no help on our problem.
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Replies:
Posted By: AC WD45
Date Posted: 22 Dec 2011 at 4:11pm
rust? if water and oxygen ever got down there that would do it
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German Shepherd dad
1957 Allis Chalmers WD45
#WD234847
1951 Allis Chalmers WD
#WD88193
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Posted By: Don(MO)
Date Posted: 22 Dec 2011 at 4:24pm
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Have you removed the front angle motor mount and the steering shaft from the u joint?
If you think the clutch disc is what's holding it up, you can remove the pressure plate bolts from the bottom hole in the clutch housing.
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3 WD45's with power steering,G,D15 fork lift,D19, W-Speed Patrol, "A" Gleaner with a 330 corn head,"66" combine,roto-baler, and lots of Snap Coupler implements to make them work for their keep.
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Posted By: chris502
Date Posted: 22 Dec 2011 at 4:40pm
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yes we have the motor suspended and we have also taken the pressure plate out it is moving back and forth on this shaft but it is hitting something like a pin or key. Does the shaft come out with the engine or does it stay in the transmission?
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Posted By: AC WD45
Date Posted: 22 Dec 2011 at 4:47pm
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pretty sure the shaft stays
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German Shepherd dad
1957 Allis Chalmers WD45
#WD234847
1951 Allis Chalmers WD
#WD88193
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Posted By: chris502
Date Posted: 22 Dec 2011 at 5:02pm
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we can rock the motor back and forth pretty far but just won't go the rest of the way. The heads and the oil pan are off so we have a pretty good view of everything.
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Posted By: Burgie
Date Posted: 22 Dec 2011 at 5:21pm
What about the hand crank shaft that goes thru the front end?
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"Burgie"
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Posted By: chris502
Date Posted: 22 Dec 2011 at 5:26pm
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yea i've got the crank vise gripped out of the way.
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Posted By: AC Man
Date Posted: 22 Dec 2011 at 6:37pm
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It shouldn't have a pilot bearing. Was the tractor running before you tore the engine down. Not likely but maybe the clutch disk pressure plate flywheel and imput shaft all rusted together.
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Posted By: Don(MO)
Date Posted: 22 Dec 2011 at 7:16pm
Yes WD45's have a pilot bearing, The input shaft can hang up in the pilot bearing and some of them have a bushing on the end of shaft too and they are bad about rusting to the shaft and bearing too.
Don
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3 WD45's with power steering,G,D15 fork lift,D19, W-Speed Patrol, "A" Gleaner with a 330 corn head,"66" combine,roto-baler, and lots of Snap Coupler implements to make them work for their keep.
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Posted By: mlpankey
Date Posted: 22 Dec 2011 at 8:08pm
you cant have the motor raised much at all in the front or you will hang on the transmission input shaft .
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people if they don't already know it you can't tell them. quote yogi berra
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Posted By: ChuckLuedtkeSEWI
Date Posted: 22 Dec 2011 at 9:15pm
Do you have the dust cover off of the bottom of the bellhousing? I'm sure you probably do but I know from reading on here it has been missed a time or two. And yes, you can't put alot of up pressure on the engine, just enough to take the weight off and to move it forward.
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1955 WD45 diesel 203322 was my dad's tractor, 1966 D15 23530, 1961 HD3 Crawler 1918, 1966 D17 IV 83495, 1937 WC 41255, 1962 D19 6221
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Posted By: MACK
Date Posted: 22 Dec 2011 at 9:39pm
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Did you unhook the throttle linkage and choke linkage? What about the bolt behind the air cleaner? How far will it move back and forth? MACK
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Posted By: chris502
Date Posted: 22 Dec 2011 at 10:24pm
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So how are you supposed to remove the pilot bearing or are we just gonna have to force it off. And yes we have the throttle and choke linkage off and the dust cover so it has to be something inside the clutch plate area. We can push the motor far enough to one side you can almost see the other side of the clutch plate but it is not coming any further.
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Posted By: chris502
Date Posted: 22 Dec 2011 at 10:30pm
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oh yeah the tractor was not running my dad bought it locked up hoping to get it freed up. That didn't work so he found a trike that ran for a good price so that's what's going on with the whole situation. He did successfully free a d-15 so that was why he invested in it to try.
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Posted By: B26240
Date Posted: 23 Dec 2011 at 7:20am
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502 you didn't say how far the engine moves forward, the trans input shaft stays with the trans and as said with all the trouble you are having take all the preasure plate bolts out from underneeth . If you are sure there is no interferance with any hardware it must be pilot bearing. Also as said engine must come sraight forward about 4 or 6 in. before tilting upward. HTH
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Posted By: mlpankey
Date Posted: 23 Dec 2011 at 12:15pm
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one more thing that could cause a fubar is the starter if it was left in the bell housing before attempting engine removal
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people if they don't already know it you can't tell them. quote yogi berra
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Posted By: chris502
Date Posted: 23 Dec 2011 at 3:47pm
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Well guys we got it out, it took a little coaxing with a pry bar but it's out. Thanks everyone for your help and have a merry christmas.
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Posted By: B26240
Date Posted: 23 Dec 2011 at 4:12pm
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So --- what as holding it ?
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Posted By: Ted J
Date Posted: 23 Dec 2011 at 7:00pm
Yeah, WHAT was holding it in Chris?
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"Allis-Express"
19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17
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Posted By: BobHnwO
Date Posted: 24 Dec 2011 at 4:53am
Had the same problem when I rebuilt my D17,was really hard to get apart,input shaft splines were stuck in the clutch disc.
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Why do today what you can put off til tomorrow.
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Posted By: chris502
Date Posted: 24 Dec 2011 at 7:52pm
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I think the flywheel was froze to the pilot bearing on the end of the shaft. The more we moved the whole engine around the looser it got. I took someone's advise and started taking the screws out of the clutch plate, then the very last one was all the way on top and did not allow room for anything we had. Out of frustration we started prying the engine outward and wiggling it some more the whole engine came all the way out. So we are gonna start taking out the good motor hopefully this week.
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