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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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283 engine block

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tahydo

10-23-2005 09:31:31




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Iam in the process of rebuilding my 283 diesel out of a 1800 after I pulled the head off there look like hair line cracks in the block between the sleeves. Is this normal or is the block junk?




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90%ret'd

10-23-2005 19:37:28




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 Re: 283 engine block in reply to tahydo, 10-23-2005 09:31:31  
Listen to J. S. if no cracks at bottom of sleeves should be ok. For peace of mind 1/4 or 5/16 cross bolts between the sleeves will last a long time. That procedure was used before most of us were born.



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Steven

10-23-2005 17:53:28




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 Re: 283 engine block in reply to tahydo, 10-23-2005 09:31:31  
Were you having any troubles that you could relate to these cracks before you tore the motor down? An old Oliver mechanic told me the cracks are normal. That is the way that the block was cast, the center of the casting was in the center of the cylinder. It was the weakest point. On the later blocks, the center of the casting was offset in the cylinder hole making it stronger. If you weren't having any troubles before, you won't now.

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J. Schwiebert

10-23-2005 17:18:26




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 Re: 283 engine block in reply to tahydo, 10-23-2005 09:31:31  
First of all since this is a 283 it must be an 1800 A series. Between which cylinders are the cracks? If you turned the head over there are probably cracks in there also. Now they came out with a revised cooland package to redirect the cooland to help prevent these problems. What do you do with the tractor? If it were mine I would evaluate the situation and keep the old block. We used to see 77 & 88 blocks that way and there were never any problems with them. Questions ? send me a reply

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charles Kessler

10-23-2005 16:55:18




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 Re: 283 engine block in reply to tahydo, 10-23-2005 09:31:31  
that block is junk .



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Tramway Guy

10-23-2005 12:55:32




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 Re: 283 engine block in reply to tahydo, 10-23-2005 09:31:31  
Cracks on the surface (deck) shouldn't be a problem. My 88D block has had the same thing for 30 years. The head bolts will keep it together.

A crack down at the lower end, however, would definitely be grounds for trashing the block.

Now, I will say that there are those who are uncomfortable with this situation and have installed horizontal studs between the liners to keep the block pulled together. This probably will require machining them for clearance after installation.

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ejr-IA.

10-23-2005 11:15:23




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 Re: 283 engine block in reply to tahydo, 10-23-2005 09:31:31  
The choice is get it welded or a different block.Both expenive.I had two blocks do this ,was lucky and found good blocks reasonable.



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