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Tractor Talk Discussion Forum

W4 connecting rod journals

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Farmer Jim

02-02-2008 17:24:14




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Does anyone know the original size of 152 CID engine's connecting rod journals? I am rebuilding my W4's engine and am unsure what size over standard to order.




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El Toro

02-02-2008 17:39:54




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 Re: W4 connecting rod journals in reply to Farmer Jim, 02-02-2008 17:24:14  
You should have your local auto machine shop to measure those journals. They can supply the correct bearings including unsersize if the shaft has been ground. You may need new cam bearings too. They determine good oil pressure. Hal
PS: Your tractor's crankshaft may measure from factory on the rods 2.2475-2.2485" or 2.2975-2.2985" depends on the serial number & the mains
the 2.4975-2.4985" or 2.5575-2.5585".

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gene bender

02-02-2008 17:38:33




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 Re: W4 connecting rod journals in reply to Farmer Jim, 02-02-2008 17:24:14  
First you better mike the crank then take the old inserts to the bearing shop and by the # on the insert they will know how much oversized or std they are.



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Farmer Jim

02-02-2008 17:52:01




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 Re: W4 connecting rod journals in reply to gene bender, 02-02-2008 17:38:33  
Gene,

The number on the journals and mains identifies them as standard. The problem is some previous owner installed two brass shims under each insert and mains.We can measure them and order the proper size once we know the original size.

FJ



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