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Farmall & IHC Tractors Discussion Forum
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Rod bearings

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Gordo

02-25-2005 17:56:00




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Got the head off the H, have the pistons and rods out. Looking the the rod bearings, they are stamped "IH .002"
355268 R1 Are these standard bearings? Rod journals on the crank look good to the eye. Bearings are "a little ratty". Can I repalce them without a grind on the shaft?

Gordo




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Eastsider

02-26-2005 07:44:39




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 Re: Rod bearings in reply to Gordo, 02-25-2005 17:56:00  
I currently have a set of those for sale on the picture ads of this website. I bought them for my rebuild, but I ended up not needing to use them. They are Federal Mogul bearings that started life as .020 and were turned down in a machine shop to be .002. They are unused and in excellent shape. Take a look at the ad and send me a note if you are interested. IH does not make or supply .002 bearings any more, and neither does anyone else.

Mark

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MagMan

02-26-2005 12:05:08




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 Re: Rod bearings in reply to Eastsider, 02-26-2005 07:44:39  
I agree there avalible every where I sell them through AI. Valu bilt carries them . I dont know why you could not find them



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JT

02-26-2005 09:35:08




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 Re: Rod bearings in reply to Eastsider, 02-26-2005 07:44:39  
FYI
So you do not waist your time anymore making .002 bearings, they are still available. they sell for 11.94. ea rod.



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Eastsider

02-26-2005 15:45:25




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 Re: Rod bearings in reply to JT, 02-26-2005 09:35:08  
My memory was fuzzy. They are .003, not .002 I know that that size is no longer available. Oh, well. Thanks for jogging my brain.



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Gordo

02-25-2005 19:41:26




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 Re: Rod bearings in reply to Gordo, 02-25-2005 17:56:00  
OK, I will listen. The engine is still in the H. Can I just remove the main caps and the crank will drop out of there? What about seals in the ends?

Gordo



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El Toro

02-26-2005 12:47:32




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 Re: Rod bearings in reply to Gordo, 02-25-2005 19:41:26  
weberstractorworks has .002 undersize rod bearing
for $45.00. Hal



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JJK

02-25-2005 20:11:21




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 Re: Rod bearings in reply to Gordo, 02-25-2005 19:41:26  
You can't remove the crank that easy. The engine has to be toar down some to get the crank out. Unless there are deep grooves or ridges in the journals I'd just put new bearings back in. Replacing them with the same size that was taken out.



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Novel Idea Guy

02-25-2005 20:03:43




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 Re: Rod bearings in reply to Gordo, 02-25-2005 19:41:26  
You need to split the tractor and take the engine out of the tractor to remove the crank. The crank is bolted to the flywheel, and there's no way that's dropping out the bottom of the tractor.



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randy hall

02-25-2005 19:12:16




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 Re: Rod bearings in reply to Gordo, 02-25-2005 17:56:00  
your crank has .002" undersize bearings, which means it was overhauled without having the crank ground. the crankpins might be getting a little flat. you should have it checked at your machine shop. .002" bearings are for 'slightly worn crankshafts'



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Farmhand

02-25-2005 18:46:54




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 Re: Rod bearings in reply to Gordo, 02-25-2005 17:56:00  
Gordo

You have gone this far go ahead and take the crank and have the mic checked on it and that will determine if it needs to be turned or just polished.A good machine shop will be able to help you determine what it needs.



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CNKS

02-25-2005 18:16:41




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 Re: Rod bearings in reply to Gordo, 02-25-2005 17:56:00  
0.002 undersize. Means the crank has been reground once. You need to check the mains also. Only way to be sure about the crankshaft is to measure the journals.



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El Toro

02-26-2005 07:05:28




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 Re: Rod bearings in reply to CNKS, 02-25-2005 18:16:41  
Crankshafts that are slightly worn and aren't egg-shaped can use .002" undersize inserts to bring
the tolerance's within recommended specs without
having the shaft ground. Usually just a polish
is suffice. Hal



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Allan in NE

02-25-2005 18:14:37




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 Re: Rod bearings in reply to Gordo, 02-25-2005 17:56:00  
Gordo,

You are .002" under on the inserts. I would run a mic across each journal twice at spots 90 degrees apart from one another, just to make sure you are round.

If you are good to go and can't feel anything with your fingernail across the journal, get the proper bearings and throw 'er together.

Allan



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Dhuth2

02-25-2005 18:03:57




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 Re: Rod bearings in reply to Gordo, 02-25-2005 17:56:00  
I would say you have some .002 oversize bearings there. Guess the rest of your question depends on what you are using it for. Once a month I would say change the bearings..... ..Hard work everyday..... I would have the machinist check it all out.....just my opinion....Good Luck



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