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Fordson Tractors Discussion Forum

Bearing size?

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Richard Hare

05-09-2008 06:34:19




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Hello again,

I have another Question if I may;

On the Fordson Super Major I'm working on, I want to put in new main and rod bearings.
The crank is fine, and bearings good, but have picked up a bit of junk in the babbit.

The present bearings have "ford" logo on them, a part number, and "Size 1"

Can anyone tell me for sure if "Size 1" means standard? If the krank's been ground, Most bearings are marked +10, +20 or whatever.
Can I take it that this crank hasn't been re-ground?

If "Size 1" doesn't help, could someone give me specs on crank journal diameters? To make sure i've ordered the right size?

Thank you very much for any help.
all the best!

R.

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W R

05-09-2008 15:37:51




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 Re: Bearing size? in reply to Richard Hare, 05-09-2008 06:34:19  
Standard Main Bearing Journal Dia:3.0002"-3.0010"
Undersize: 0.010, 0.020,0.030.
Standard Crank Pin Journal Dia:2.4997"-2.5005"
Undersize: 0.010, 0.020, 0.030,0.040.



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Richard Hare

05-10-2008 05:44:49




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 Re: Bearing size? in reply to W R, 05-09-2008 15:37:51  
Thanks for the reply, and information, WR.
I'll see what it measures up as.

Cheers,

R.



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