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Farmall & IHC Tractors Discussion Forum
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Mains and Rod Torque Spec.

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GooseGreek Farm

01-14-2005 04:19:11




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We recently pruchased a "460" which hasen't ran in about 9 years. I had the head redone by a machine shop, but before I put it back together want to check out the bottom end bearings with plastic gage. My question is, what are the torque spec. on the mains and the rod caps? Looking through the owners and service manual, I can't find them anywere. Also, what kind of acceptable reading should I get from the plastic gage? Thanks for your thoughts.

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Catskill Pete

01-14-2005 09:39:35




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 Re: Mains and Rod Torque Spec. in reply to GooseGreek Farms, 01-14-2005 04:19:11  
Rod caps 50 ft.lbs Mains 80 ft.lbs Clearence on rod bearings .9 to 3.4 Main bearing clearence 1.2 to 4.2 In this case it didn"t make any difference because they are the same, but in future you should mention if its gas or diesel.



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CNKS

01-14-2005 09:31:57




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 Re: Mains and Rod Torque Spec. in reply to GooseGreek Farms, 01-14-2005 04:19:11  
Just did that -- 80 on the mains 50 on the rods, my IH service manual for the C221, etc, has all those specs. Good luck with your measurements, you might want to read the two posts on this subject that I started, they are probably on page 3 or 4 by now. My 221 needs about everything, so good luck! If yours is a diesel, the main specs are the same as gas, but the rod spec is 45. Cylinder head on the gas is 90, diesel 115.

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CNKS

01-14-2005 09:42:21




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 Re: Mains and Rod Torque Spec. in reply to CNKS, 01-14-2005 09:31:57  
I forgot the plastigage. Gas and diesel are the same. Mains 0.0012-0.0042, max allowed 0.006. Rods 0.0009-0.0034, max 0.005. Crankshaft end clearance (I have not tried this one yet)-0.005-0.013, max 0.024. I am an expert on none of the above, so if you have more specific questions, read my previous threads, or ask someone else to jump in and explain.



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