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Leon B MO 
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Joined: 12 Sep 2009
Location: Old Monroe, Mo
Points: 2098
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 Topic: 7020 rod bearing part #
Posted: 16 Jan 2024 at 2:07pm |
Going to put rod bearings in the 7020. Pulled one out this morning, it is time to change them. It had 5 79 stamped on the back. Online parts book has the #74007700 but does not say if it standard or oversized. There are several different part #'s available, how do I know which part # to order? Also, they are listed as 1 half, so 2 per rod, which also seems weird. I assumed they came in pairs. Price is not bad, about $35 per rod for bearings and $10 for a pair of rod bolts. Leon B MO
Edited by Leon B MO - 16 Jan 2024 at 2:13pm
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Uncle always said "Fill the back of the shovel and the front will take care of itself".
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Alvin M
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Joined: 24 Jun 2018
Location: PA
Points: 745
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Posted: 16 Jan 2024 at 2:48pm |
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Drop down to the bearing sets it shows the size
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tbran
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Joined: 14 Sep 2009
Location: Paris Tn
Points: 3275
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Posted: 16 Jan 2024 at 3:26pm |
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74007700 is Standard size rod brg for all 301's that is for one piece
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When told "it's not the money,it's the principle", remember, it's always the money..
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DrAllis
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Joined: 12 Sep 2009
Points: 20184
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Posted: 16 Jan 2024 at 6:05pm |
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I'll bet there were a pretty copper color on the top halves ??
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Leon B MO
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Joined: 12 Sep 2009
Location: Old Monroe, Mo
Points: 2098
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Posted: 16 Jan 2024 at 7:24pm |
I'll try to post a pic tomorrow. Not as bad as I thought it would be but Curtis only pulled #6 cap to verify size and wear. Once the new parts come in, we'll change one at a time as we roll it over. He said the journal actually checked within .001 on 6. It does make me want to check the 8050fwa, 8010 and 7060 as time permits. Thanks again all Leon B Mo
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Uncle always said "Fill the back of the shovel and the front will take care of itself".
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Lynn Marshall
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Joined: 13 Sep 2009
Location: Dana, Iowa
Points: 2257
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Posted: 16 Jan 2024 at 7:25pm |
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Almost gotta be standard original bearings from May of 1979.
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IBWD MIke
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Joined: 08 Apr 2012
Location: Newton Ia.
Points: 3642
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Posted: 17 Jan 2024 at 9:25am |
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This is probably not the case with your tractor, but.... I have a WD 45 crank around here that has, I think, three different size rod journals! One is -.040 already and needs ground. It's basically junk but I keep it around anyway, Ted J. rule maybe? It would be a fine candidate for a stroker crank for a puller.
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Leon B MO
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Joined: 12 Sep 2009
Location: Old Monroe, Mo
Points: 2098
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Posted: 17 Jan 2024 at 11:04am |
Here is a pic of the one we took out. It does have a copper look to it with more light. Tach says 54xx hrs but can't verify that.
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Uncle always said "Fill the back of the shovel and the front will take care of itself".
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SteveM C/IL
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8159
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Posted: 22 Jan 2024 at 8:07pm |
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Fitting for the hrs. Someone let some dirt in. Should be able to remove any journal scratches with fine emery.
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