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Farmall & IHC Tractors Discussion Forum
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C block blues

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dave

07-15-2005 14:38:53




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I was wondering,if a C block and a super C block would swap parts.Ok I have a C with a really bad rust problem inside the engine.The former owner let it rain in the block for years,and filled the block with some water.When I went to drain the engine,crud and gunk and a gallon of water came out.Its stuck too by the way.Today I happened upon a super C engine(as yet uncomfirmed super)but it supposedly did originate from the leftover hulk of a super C nearby.The super C engine has 2 rod caps gone,but is mostly complete.Will the rods from old crusty C work in the super C block?Since I have to get the crank polished,think I should just take a sleeve kit and let a machine shop shortblock it?any advice appreciated.thanks Dave in sw Virginia.

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gene b

07-15-2005 20:27:17




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 Re: C block blues in reply to dave, 07-15-2005 14:38:53  
Just pull the radiator then the lower outlet and backflush the block with water and compressed air. This should clean out the passages below the sleeve and it should clear up your problem.



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El Toro

07-15-2005 15:59:23




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 Re: C block blues in reply to dave, 07-15-2005 14:38:53  
The rod caps should be the same, since both rod journals measure the same on the C and Super C.

I would use the rods from the Super C. Just have the new pistons installed on these rods. If you don't feel confortable doing the engine I would have the machine shop to build up the engine. They're very easy to work on. You should have the
block degreased (cooked) to remove sludge, dirt
and rust. Clean all oil gallery passages too.

If you decide to do it yourself, clean the block
area where the new seals and sleeves are installed. Very important to prevent leakage.

If you decide to do it, note how the rods and caps are facing. Same on the main caps. Numbers usually face the camshaft. Not this before tearing apart. Hal

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lee

07-16-2005 04:54:11




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 Re: C block blues in reply to El Toro, 07-15-2005 15:59:23  
I'm speaking from experience for automotive but I think it applies here the caps are assembled to the block and align bored in place so they cannot just be swapped out block to block or even journal to journal. Any time you buy a block you get the caps. If caps are missing and replacements are swapped in they must be align bored or at minimum, checked for size and alignment or you are looking for heap big trouble.

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El Toro

07-16-2005 07:02:51




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 Re: C block blues in reply to lee, 07-16-2005 04:54:11  
I think that applies to main bearings. You can
buy new rods for most cars and if your bearing clearances are within spec and wrist pins are fitted to rods and pistons. I doubt if if these old tractor engines were aligned bored. Hal



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lee

07-16-2005 07:40:52




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 Re: C block blues in reply to El Toro, 07-16-2005 07:02:51  
Well, I thought the post was about mains, but it clearly says rod caps so in that case those rods with swapped out caps should be re-sized at a machine shop because in the case of rods you should not swap caps and if you do they should be checked for size and re-sized if needed. These old engines are not so different than modern engines in terms of clearances and basic construction and workings of the bottom end. The blocks will have been line bored/honed because there is no other way to manufacture them if you think about it and expect the crank to turn after you tighten the caps. The point of my post is to at least be aware and if you choose to ignore don't be surprised if you run up against heap big trouble.

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lee

07-15-2005 15:11:44




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 Re: C block blues in reply to dave, 07-15-2005 14:38:53  
Not so sure you can just swap in the caps without
align boring the mains. The caps are bored in place and must remain with the block.



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