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Farmall & IHC Tractors Discussion Forum
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706 282 rebuild

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LD in PEI

08-21-2006 19:25:32




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hi all
my mechanic and i are doing the bottom end of the engine over, and she had 1 cracked sleeve. now there appeared to be a crack in the block but after further examination, that didn't appear to be the case ( no antifreeze in the base....or vice versa, as soon as it started knocking, it was torn down ). so when we took the sleeves out, we found shims under the sleeves. i guess my question is with new sleeves, are these necessary? it is late at night here, and i haven't had time to look in the book, figured it would be easier to get opinions here from someone with experience with these tractors. thanks in advance for any advice

also i got all new pistons,rings, wrist pins and bushings and bearings, head looks good
thanks

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LD in PEI

08-22-2006 18:03:42




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 Re: 706 282 rebuild in reply to LD in PEI, 08-21-2006 19:25:32  
thanks guys for all the info, it has been helpful, and yes hugh.....this is layton....
anyhow, we are thinking that we'll go get the .005 oversized sleeves and hone the holes, as the sleeves i got don't take much push with the hand to get them down. as for the bore class, i don't see this stamped anywhere, maybe not looking in the right place?? this engine has been done over before by the looks of things

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Hugh MacKay

08-21-2006 20:19:27




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 Re: 706 282 rebuild in reply to LD in PEI, 08-21-2006 19:25:32  
Layton, I presume, having a 706, with a 282 and in PEI. Those shims have a purpose, but I also expect you may have variations depending on the source of your new sleeves and pistons. Take care to get this one right. Rebuilt 282s have a reputation of sleeves moving vertical, until it breaks rim off the top end of sleeve. It then draws the sleeve down into crankcase with piston. That alone is not your real problem. The real problem occurs when the piston comes back up. The usual result is a hole in block the size of your head.

I had this happen with my 560, clocked up well over 9,000 hours on the original engine. Put in new piston and sleeve kit and about 2,000 hours later, bango, 2 pistons in the barn yard. I have talked with several other people that had same experience both with 282 and 188 which is just 4 cylinders of the 282. In all cases it was aftermarket rebuild kits. I expect all one can get today will be aftermarket, even at CaseIH.

Use caution and get good advice.

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Jimmy King

08-22-2006 01:42:53




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 Re: 706 282 rebuild in reply to Hugh MacKay, 08-21-2006 20:19:27  
My 460, 236 dropped a sleeve a few years ago, then discovered the holes were egg shaped had to have the block bored an put over size sleeves in.



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Hugh MacKay

08-22-2006 02:31:40




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 Re: 706 282 rebuild in reply to Jimmy King, 08-22-2006 01:42:53  
Jimmy: There are two factors here; make sure the guy doing the rebuild has excellent credentials. Then secondly, make sure the guy running your tractor has sence enough to shut in down when he hears knocking. The young lad that was running my tractor when it started knocking, left it running and went for help. I couldn't believe anyone could be that stupid. I guess some folks are wheel barrow operators only.

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K.B.-826

08-21-2006 20:17:19




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 Re: 706 282 rebuild in reply to LD in PEI, 08-21-2006 19:25:32  
The shims set the standout of the sleeves. You've got to test fit each sleeve to each hole and get them all to the correct standout. The best way to resleeve a 282 is to get the .005 oversize OD sleeves and have the block machined so the sleeves are a press fit. Originally, they slid in by hand, and that lead to cracked sleeves and sleeves getting sucked down. Get the sleeves installed by a machine shop that knows 282's, that's about the only way to be sure it's right. Those engines are extremely touchy about how the sleeves fit.

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the tractor vet

08-21-2006 21:02:48




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 Re: 706 282 rebuild in reply to K.B.-826, 08-21-2006 20:17:19  
Nah ya don't have to do that as these are press fit and if ya start pushen them in and pullen them out son you are going to have big problems . Ya mic. the flang with a outside mic then with a depth mic ya check the countor bore then ya do the math and add or subract the shims . But the big thing is checking the fit of the sleeves on these engines as they must be a press fit and nothing else will do . Ya have to pay close attenshion to the bore class on them , like i said before even on the gassers they have a bore class stamped in the deck by the hole and A-B is the only class that aftermarket sleeves will fit . Now the way around this is to spend some mody money and have the block bored on the holes that are C-D class and have them made into the A=B class hole and be nice for the next guy and restamp the block . . And i know that is ya read the Clevit book they try and tell ya that a hand fit is Ok but guess what if it is a hand fit it will not be long before ya pul the sleeve out of the oil pan or what is left of it.

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the tractor vet

08-21-2006 20:02:08




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 Re: 706 282 rebuild in reply to LD in PEI, 08-21-2006 19:25:32  
The sleeve must stand out so much and all sleeves must be kept with in spec's as to sleeve hight and at this moment i can not tell ya just what the spec's are and i have my boots off for the evening and a vary large pice of cake with icecream setting in ft. of me . Now if this tractor sucked a sleeve then this tels me that that hole needs to be fixed and someone did not pay attenshion to BORE CLASS here look at the top of the block and you will see either a A-B or C -D by each hole and if this engine was rebuilt with run of the mill after market kit the all the sleeves are for only A-B class holes so Huston we got a problem here .

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Aces

08-21-2006 19:56:06




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 Re: 706 282 rebuild in reply to LD in PEI, 08-21-2006 19:25:32  
LD the 282 came with shims so the sleeves could be all set same above the block there was a special tool to gage with. If that is the way today some one have to jump in here been long time that I did one.



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