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6060, 6070 and 6080 |
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BV
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Joined: 12 Sep 2009 Location: Bono Arkansas Points: 489 |
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Topic: 6060, 6070 and 6080Posted: 12 Jan 2026 at 1:59pm |
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which FIAT tractors used these transmission and rearends as the A-C tractors and can you still get parts for these? how good were these tractors and was one better than the other, I had a F2 Gleaner with the little 4 cylinder engine and it ran good and had plenty of power.
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DSeries4
Orange Level
Joined: 12 Sep 2009 Location: Ontario, Canada Points: 7591 |
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Posted: 12 Jan 2026 at 3:38pm |
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6060 Used the Fiat 780 transmission. 6070 and 6080 Used the Fiat 980 transmission. Some Ford/New Holland tractors also used the same transmission and rear end, so parts should not be a problem. Haven't had to touch my 6080 , but it's a great tractor. Mine dynos at 108 hp.
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'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080
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only AC orange
Orange Level Access
Joined: 06 Dec 2014 Location: Eastern Indiana Points: 585 |
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Posted: 12 Jan 2026 at 3:58pm |
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My 6060 has about 3300 original hours and has a 460 loader on it - a great, nice handling tractor!
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tbran
Orange Level
Joined: 14 Sep 2009 Location: Paris Tn Points: 3575 |
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Posted: 12 Jan 2026 at 4:20pm |
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A couple of the Hesston tractors had a transmission common with the 6080 as well. The last batch of parts, well they thought a lot of them. One would think as many as they are around the world someone in the aftermarket would pick up on them a they have others.
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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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BV
Silver Level
Joined: 12 Sep 2009 Location: Bono Arkansas Points: 489 |
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Posted: 12 Jan 2026 at 4:43pm |
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I don't know how they get so much power from that little engine, I was reading about the PTO affecting the thrust bearing in the engine and the bra bearing being added to the front of the engine, does any of you guys tractors have this added front bearing or did they correct this problem? Was this potential issue noted in the operators manual and just overlooked by the operator? Another thing I noticed was the two tractors I was looking at for sale the rear axle seals were leaking, was this a problem with them or just a coincidence with the ones I looked at? Was one better than the other between the 6060,6070 and 6080? Thanks for the information. I wish I had a nice 175 with the 433 A-C engine installed.
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DSeries4
Orange Level
Joined: 12 Sep 2009 Location: Ontario, Canada Points: 7591 |
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Posted: Yesterday at 2:16pm |
The newest models did not have the "bra" on the front of the engines - Mine is a mid 1985 and it does not have it. I think there was a certain engine serial number where the block was reinforced to solve the problem - I can't remember the number though. Leaking rear seals? Possible? Of course. A common problem? Maybe. You got to remember that you are looking at tractors that are over 40 years old. Leaks are to be expected. The 433 is a great engine. However, below 1500 rpm it can fall on its face with a load. Keep it above 1500 and you won't kill it! The guy that did the dyno test on mine couldn't believe it. Just kept pulling!
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'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080
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Ed (Ont)
Orange Level
Joined: 08 Nov 2009 Location: New Lowell, Ont Points: 1552 |
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Posted: Yesterday at 3:35pm |
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Myron how do you dyno your tractors. Do you have a PTO dyno in the area or other means to test. I use Fred Smith in Cayuga to test automotive engines for our hotrods. We just take the engine to him. Very neat operation. Impressive to see a small V8 put out near 500 hp at 6600 rpm.
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tbran
Orange Level
Joined: 14 Sep 2009 Location: Paris Tn Points: 3575 |
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Posted: 20 hours 24 minutes ago at 8:21pm |
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This has been covered before, but the 6080 faired very well in testing. They put a lot of hours in testing in a hurry. The thrust brg issue arose due to the large clutch plus the PTO clutch that had had to be depressed along with the trans clutch to start. The compression ration was dropped for engine life. The issue arose during the cold winter, harder starting and longer cranking time combine with the thrust load of the new bigger clutch and the results was a failure of the thrust bearing. There was an attempt to put in grooved brgs to put extra lube during cranking, but the load was just too great long term. The parent engine 2200 and 2800 2900 had no such issues because of the better cranking and less thrust loads. The solution was to install a front external thrust bearing to bear the load. This fixed the issue but the owners were not instructed as to the necessity to lube the bearing and periodically check the clearance which was shim adjusted. Then the roll pin locater started fracturing. This was replaced by a dowel pin. Since many years back all pistons are of the origional compression ratio. Later engines had a different crankshaft with a double thrust area and thrust bearings that were double width as well. All this will fit in the old blocks as long as the main saddle of the block is filed down to allow the bearing to seat. The F2/3's were rated at 95 hp - the later units with bosch injectors pushed 110 hp easily with little smoke using these engine as in the 6080s. Another after thought, I remember the cranks were shot peened in the fillet radius as well - the 6060 and 6070 were not - the only difference was the intercooler delete and less fuel.
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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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AC720Man
Orange Level
Joined: 10 Oct 2016 Location: Shenandoah, Va Points: 5363 |
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Posted: 19 hours 28 minutes ago at 9:17pm |
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Dads 6060 was put on the pto dyno at our AC dealership after break in. It maxed at 82 hp, he wanted it checked as he knew it had way more than the advertised hp. Another neighbor had bought a 6080 and had it checked. 101 hp, easily handled his 2 row chopper in 10’ tall corn when his 180 diesel could only handle a single row at a time. The 433 is a really good engine, no issues other than a pump rebuild about 10 years ago.
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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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DSeries4
Orange Level
Joined: 12 Sep 2009 Location: Ontario, Canada Points: 7591 |
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Posted: 1 hour 18 minutes ago at 3:27pm |
Our local club has an M&W PTO dyno that they would set up and use at their shows in the summer. I have used it on many of my tractors. Does a good job of clearing carbon out of some of those diesel engines! |
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'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080
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