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Leon B MO 
Orange Level
Joined: 12 Sep 2009
Location: Old Monroe, Mo
Points: 2098
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 Topic: 8070 rod bolts
Posted: 26 Nov 2023 at 3:22pm |
Pullled the pan off the 8070 to put rod bearings in as per everyone's advice here. The hours are unverified but we figured it was time. Glad we did, rod bearings show wear, mains look very good. Rod journals are within .001 of spec. I remember a post about the rod bolts, should I replace them with the bearings? Also, after removing mains, can those bolts be reused? Plan to drop the pan on an 8050 and 7020 as well this winter. Thanks 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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SteveM C/IL
Orange Level Access
Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8159
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Posted: 26 Nov 2023 at 5:17pm |
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Mains reuse bolts. Brgs look good reuse as well especially if top shell is absent the main jet slot. New AGCO rod bolts,follow directions on torque down and new shells because they are cheap.
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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: 26 Nov 2023 at 5:20pm |
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I was thinking you could get 1 under brgs from agco for rods. Would Have to look it up....
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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: 26 Nov 2023 at 6:13pm |
Thanks. I'll look into it. 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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cowkicker
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Joined: 21 Mar 2010
Location: Ky
Points: 499
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Posted: 26 Nov 2023 at 8:07pm |
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in did an 8070 a few years ago and the rod bolts from agco were ARP bolts. I saved the number and meant to write it down in the service manual, but of course I didn't do it at that moment and now I can longer can find it. Thought it might come in handy in the future. Maybe you could give us the ARP number when you get your new bolts. Thanks
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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: 26 Nov 2023 at 9:59pm |
You can't get em from ARP. AGCO part # with ARP stamped in the head. My mechanic called ARP about them in 2010 and they had no information about them. Just saying....
70277489 is current part #. Priced at my dealer for $25.31 per rod(2 bolts) Come in a package of 6 sets for total of $151.86. HTH I only see a .002 under listed. A supplier like Clevite or even F/mogul may supply a .001 under. The mains I got from AGCO were FM.
Edited by SteveM C/IL - 26 Nov 2023 at 10:10pm
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NEVER green
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Joined: 28 Feb 2013
Location: MN.
Points: 7211
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Posted: 27 Nov 2023 at 9:54am |
Use standard bearings, .001 extra clearance is nothing, actually frees up horse power.
Edited by NEVER green - 27 Nov 2023 at 10:54am
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2-8050 1-7080 6080 D-19 modelE & A 7040 R50
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injpumpEd
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Joined: 13 Sep 2009
Location: Walnut IL
Points: 4860
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Posted: 27 Nov 2023 at 10:35am |
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.001 under are tighter to make up for very slight rod journal wear, or dialing in desired clearance. .001 over loosens it up.
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210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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