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Allis Chalmers Discussion Forum
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wd-45 engine

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ricedaddy

12-18-2005 13:50:26




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I have a wd45 with a crack block (between cylinders). I have purchased 2 more, tore them down and they were the same way. Someone told me a d-15 engine would fit right in. Any help would be appreciated!
Ron




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ricedaddy

12-18-2005 18:23:42




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 Re: wd-45 engine in reply to ricedaddy, 12-18-2005 13:50:26  
The crack is between #2 & #3 is about a sixteenth wide, plus is very uneven, in other words if you lay a straight edge long ways there's about a sixteenth" gap also. I checked with one place and they wanted $900.00 to weld and surface it, way to much I think
thanks for your help



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Dick L

12-18-2005 19:04:49




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 Save Your 900 Bucks in reply to ricedaddy, 12-18-2005 18:23:42  
And buy tools and engine parts with it. You can fix it yourself with a few simple hand tools as shown in the link.
The engine in the pictures is out of a B but it would be the same principal with yours. You can pull it back togather.

It sounds like the crack in your engine looks like the ones in the first picture. Click on the picture to enlarge it.

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pjh

12-20-2005 10:42:23




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 Re: Save Your 900 Bucks in reply to Dick L, 12-18-2005 19:04:49  
Oops! my bolt question was for Dick not Zonie. The reason I am concered is I think my B has this problem its working OK but somebody at one time stuffed it full of stop leak. I also need to know what size bolt and bolt torque or am I over analying the fix.
Paul



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Dick L

12-20-2005 14:36:53




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 Re: Save Your 900 Bucks in reply to pjh, 12-20-2005 10:42:23  
If it is not leaking and not over heating I would not give it a thought until I had to overhaul it. Back a little before my time but not by much they used to stuff horse apples in the radiators for stop leak. Only worked for a short time but with an ample supply the tractors could stay in the field. Those stories were told to me by men that are now gone. Time will come that they will be gone. When told, I must say, the story was about dumb things someone did but seemed to work. Not as something to try the next time you had a radiator leak.

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ricedaddy

12-19-2005 15:47:39




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 Re: Save Your 900 Bucks in reply to Dick L, 12-18-2005 19:04:49  
Dick L, thanks for all the info, your right the cracks looks like the one"s in Pic #1. One problem is there is no freeze plugs in this block. The numbers on the side are B-16-F and lower on the block is 45-55632. My question is, can I still drill and tap it even tho it doesn"t have the plugs? If possible I would like to talk to you, you can E-M me direct at [email protected]
thanks again for your help
Ron
719-589-4585

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Dick L

12-20-2005 14:59:16




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 Re: Save Your 900 Bucks in reply to ricedaddy, 12-19-2005 15:47:39  
You will have to make your own freeze plug with a pipe plug. Drill the hole out for a pipe tap. I used a 1/2" tie bole in the pictures but a 3/8" bolt will work just as well. My Allis C has a 3/8" tie bolt. Depends on what small tools you have to work with, you might have to go to a 3/4" pipe plug. You will have to dust the rough off around the hole so the bolt head will seal. After the pipe plug is in it cand be ground flush and it will be hard to spot after painted.

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Zonie

12-18-2005 15:40:13




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 Re: wd-45 engine in reply to ricedaddy, 12-18-2005 13:50:26  
The D-15 engine is totally different.
I agree with Aaron except that the D-17 block will bolt in but you need to use the D-17 crank etc.



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pjh

12-20-2005 10:23:41




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 Re: wd-45 engine in reply to Zonie, 12-18-2005 15:40:13  
Zonie
How do you seal the bolt head? In "theory" coolant could leak into the oil side from the bolt head. Has that happened? What grade bolt?
Thanks,
Paul



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Dick L

12-20-2005 14:48:11




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 Re: wd-45 engine in reply to pjh, 12-20-2005 10:23:41  
Theo one in the pictures is a grade 8 but that was what was handy at the time. A soft bolt would work just as well. Rust would be your only problem and that is not a problem with todays antifreeze. I only torque untill the crack comes togather. I seal the thread with blue, gray, black, or clear silly cone.

I had not read this when I told the story above. You might guess that it is cold outside and I am spending way to much time in front of this keyboard. Stories just pop back in my mind. Most of them I better not retell.

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Dick L

12-18-2005 15:39:14




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 Re: wd-45 engine in reply to ricedaddy, 12-18-2005 13:50:26  
As you found out the cracks at the top are very common. Never been a problem for any one else, don"t see why it would be a problem for you. The head gasket seals those cracks with out any special treatment. The biggest share of the B"s and C"s have those cracks at the top of the block as well. I have not found the bottom cracked unless the block had frozen and split the side also. That does not mean that the bottom could not also crack with out the side cracking open at the same time. The fine cracks at the top are from the engine being over heated. If the crack is wide and uneven it would have cracked from freezing. They can be repaired but as old as your tractor would be it would be less money to buy a used block unless you were to repair it your self.
If I were to guess, I would guess that all three blocks are rebuildable.

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BushogPapa

12-18-2005 14:36:59




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 Re: wd-45 engine in reply to ricedaddy, 12-18-2005 13:50:26  
Cracks between the sleeves at the bottom are very common between the sleeves, since the web is very thin.. You can have these repaired and will not have a problem with them... Usually you find this crack between #1 and #2 sleeves..#3 and$4 could, but seem to seldom crack there.. Even With that crack, a Pint of Non-hardening Permatex carefully poured into the bottom of the (Clean) water jacket will stop any leaking of water into the pan.. No other problem should happen..there are a Million of them still running, and most have that crack.. I had mine Resistance-welded and "Pinned" at Columbus Col-Weld in Columbus Ohio back in the early 1970's and it is like new, still..!! FWIW Ron..

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BushogPapa

12-18-2005 14:36:24




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 Re: wd-45 engine in reply to ricedaddy, 12-18-2005 13:50:26  
Cracks between the sleeves at the bottom are very common between the cleeves, since the web is very thin.. You can have these repaired and will not have a problem with them... Usually you find this crack between #1 and #2 sleeves..#3 and$4 could, but seem to seldom crack there.. Even With that crack, a Pint of Non-hardening Permatex carefully poured into the bottom of the (Clean) water jacket will stop any leaking of water into the pan.. No other problem should happen..there are a Million of them still running, and most have that crack.. I had mine Resistance-welded and "Pinned" at Columbus Col-Weld in Columbus Ohio back in the early 1970's and it is like new, still..!! FWIW Ron..

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Aaron SEIA

12-18-2005 14:29:45




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 Re: wd-45 engine in reply to ricedaddy, 12-18-2005 13:50:26  
If the crack is in the top of the block and the deck hasn't shifted, then run it. If you can't feel the crack with your finger, then it's not going to be an issue. The W series blocks were bad for doing that. I've got a WC and a WD that I rebuilt and both are cracked. A D17 block would fit, think the D 15 used the smaller engine.
Aaron SEIA



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