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Discussion Forum
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Wd45

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Jim P

12-26-2002 15:50:14




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I have a Allis Chalmers wd45 that I am restoring. I just started it up after 2 yrs. and it run just fine . Here is the problem the head has a leak between the head and the block. Is the head gasket shot?




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Gordon

12-28-2002 09:06:45




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 Re: wd45 in reply to Jim P, 12-26-2002 15:50:14  
What engine do you have in the tractor? The WC-WD-WD45 all interchange. The WC has a rectangle plate bolted on the right side. The WD has only large head bolts. The WD45 has large head bolts and 3-3/8 bolts on the right side. They had a problem with leaking,even with new head gaskets. That is why they put 3 bolts on the right side. You can try to retorque the head. If you do not have an internal leak or need a valve job I would not change the head gasket. You could may have the same problem when you are done.

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Ron

12-27-2002 20:48:06




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 Re: wd45 in reply to Jim P, 12-26-2002 15:50:14  
Give the head gasket a good chance to settle, and seal...not unusual to have seapage on the side with the small head bolts...at first..!!

Some "Bars-Leaks may help, but be sure to Re-Torque it at least Once, after you have heated it up to FULL operating temp, a couple of times....Re-Torque it at Full Operating Temp...



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Denny in TX

12-27-2002 07:11:36




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 Re: wd45 in reply to Jim P, 12-26-2002 15:50:14  
You will need to pull the head to find the problem. When you do take off the head, the gasket may be obviously bad. Need to check height the cylinders are above the block surface. You may need to pressure test the head (for cracks) if you can't find the problem.



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Tom

12-26-2002 17:02:49




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 Re: wd45 in reply to Jim P, 12-26-2002 15:50:14  
It is possible that the liners extend too far above the block surface. I think it is supposed to be .004" max.



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Tom

12-26-2002 17:02:37




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 Re: wd45 in reply to Jim P, 12-26-2002 15:50:14  
It is possible that the liners extend too far above the block surface. I think it is supposed to be .004" max.



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CHALMERSBOB

12-27-2002 19:37:03




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 Re: Re: wd45 in reply to Tom, 12-26-2002 17:02:37  
IS IT LEAKING INTO THE OIL? OR JUST DRIBBLING DOWN THE OUTSIDE OF THE BLOCK. IF IT DOESN'T LEAK TOO BAD I WOULD PUT BARRS LEAK IN THE RADIATOR TO SEAL IT UP. IF ITS GOOD ENOUGH FOR GM ITS GOOD ENOUGH TO TRY. GOOD LUCK, BOB



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