WD-45 Diesel
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=50455
Printed Date: 21 Aug 2025 at 1:37am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: WD-45 Diesel
Posted By: Longmeadow Farm
Subject: WD-45 Diesel
Date Posted: 12 May 2012 at 3:03pm
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Looking for some feedback... the guys on this site seem to know their stuff... I'm looking at a wd-45 diesel.. cheap for this part of the country.. .. motor seems OK..starts right up in the cold... overheats though. Owner said he changed the thermostat.. and no change.. I asked if the water pump seems to "work".. he said it the pulley turns.. I suspect the radiator, I had a 2cyl John Deere awhile back that did the same thing.. plugged radiator. I'm gonna' take a trip to look at it,.. $2750 .. probably could get it for $2250. What do you guys think??? Thanks
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Replies:
Posted By: Orange Blood
Date Posted: 12 May 2012 at 4:49pm
For 2250.00, I don't see a lot of problem, unless the thing is beat to hell. The overheating problems, could be simple, like the radiator option you mention, or it could be a blown head gasket, which will probably lead to a lot of money down the road. It's a risk, but if she is in good physical shape, I would say that's a steal.
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Still in use:
HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060
Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7
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Posted By: captaindana
Date Posted: 12 May 2012 at 6:04pm
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Martin I would walk up to the tractor if it's been sitting and unscrew the oil pan drain plug real slow and let a couple shots out and see if there is any coolant that comes out first. If nothing but oil comes out I'd say jump on it.
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Posted By: David G.
Date Posted: 12 May 2012 at 7:06pm
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I agree with the captain. If the oil is clean,bring it home. It's a bargain at $2750 but it won't hurt to haggle a little on price. The WD45 diesel is a hard tractor to beat. I was fortunate enough to get my hands on John(C-IL)'s wd45 diesel and wouldn't part with it for anything.
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Posted By: Gary in da UP
Date Posted: 12 May 2012 at 7:40pm
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NAPA auto parts stores offer a kit to detect combustion gass's in coolant. If none is detected when overheating , you have thermostat, lower rad hose, water pump, or radiator problems , ranked in expense to repair.
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Posted By: j.w.freck
Date Posted: 12 May 2012 at 9:53pm
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it is real easy to get burned on a 45-d.they are notorious for badly cracked heads,in the valve seats and the injector ports,also on the energy cell ports.injection nozzle port cracks and energy cell port cracks are not of great concern,if they are not chunking out.the block,thats a horse of another clolor.the blocks are bad about cracking between iol and water ports.not just cracks bou chunks falling out when the head is removed.intercylinder hair line cracks between the cylinders is really common.also i have seen the top of the sleeve seperate from the block 1/8 in gap,on the 4 center sleeves.the one i had a bad block and head,started and ran,but not to my satisfaction.when i pulled the engine down for o-haul.i opened a surprise package.the price is right if everything else is ok.especially if you are like me and own 4 45-d.good luck.also forgot to mention,45-d camshafts are famous for getting flat lobes...
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Posted By: j.w.freck
Date Posted: 12 May 2012 at 9:58pm
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asa a matter of fact i am looking for a 45-d bloc at this time,,,
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Posted By: MACK
Date Posted: 13 May 2012 at 7:44am
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If you are looking for a 45D block, I have a 230 gas that has the castings on it for the 2 oil filters. The gas didn't have all the block problems you talk about. MACK
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Posted By: j.w.freck
Date Posted: 13 May 2012 at 7:19pm
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mack...willa 230 gas block convert to a 239 diesel???never fooled with a 230 gas block...thx.
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Posted By: j.w.freck
Date Posted: 13 May 2012 at 7:19pm
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mack where are you located???
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Posted By: Longmeadow Farm
Date Posted: 14 May 2012 at 6:15am
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I was going to jump in my truck and haul my equipment trailer 3 hours to look at the WD-45D, when I received an answer to my latest e-mail request for information...no oil pressure.. owner indicates the gauge is broken. As I don't know much about these early Buda diesels... what are the ramifications of no pressure showing on the gauge? Apparently the tractor has been used this way for quite some time....I'm inclined to take a pass on this one... Thanks
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Posted By: MACK
Date Posted: 14 May 2012 at 6:53am
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Don't know what a 239 is. The 230 gas block is the same as 45D except very few had the castings for the 2 filters.
I'm located at Jameson, Mo. MACK
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Posted By: Jordan(OH)
Date Posted: 14 May 2012 at 9:27am
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If it was used that way for some time it obviously has oil pressure or it wouldn't run very long. Bad gauge won't hurt anything. This goes for any engine.
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Posted By: Bull
Date Posted: 14 May 2012 at 2:09pm
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It would be easy to plumb in a temporary gauge to check the pressure as the gauge line comes out of the block near the filters.
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Posted By: j.w.freck
Date Posted: 14 May 2012 at 9:16pm
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if you install an aux oil press.gage and still no oil press.shuter down and ck the # 3 rod bearing,thats the first to go.why i dont know...might be able to save the crank...
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