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Case Tractors Discussion Forum
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30 series vs 70 series

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moo cow

12-03-2005 09:12:39




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Just a thought here. I have a 1966 730 CK gas and a 1974 870 AK diesel. Both tractors were bought new by my dad. Over the years the 730 had a few minor repairs while the 870 has been in and out of the shop many times, the worst of which was around 1990 when the powershift blew out. It's my opinion that the 730's, 830's, 1030's and especially the 930's made between 1966 and 1969 were among the finest farm tractors ever produced and the crowning jewels of J.I. Case/Case IH. I think it was a huge mistake for Tennico / Case to have dropped them in favor of the inferior 70 and the later 90 series. What they should have done is continued making the 30 series through at least the 1970's and just added improvements like the reversiable 540/1000 rpm pto. What do you think?

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Gene Dotson

12-04-2005 09:11:29




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 Re: 30 series vs 70 series in reply to moo cow, 12-03-2005 09:12:39  
I think one of the nicest tractors I have driven was an 870 open station with 8 speed transmission. The 336 engine had a lot of power and torque. The tractor was effortless to drive and maneuver and was easy to work on. I owned a 1070 that is the worst tractor I ever owned. It cracked cylinder sleeve at 2 different times and the differential went out twice.

My most reliable and good working tractor is my 1959 700 diesel. Have owned this tractor for 33 years and has always been like a faithful dog... Gene

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moo cow

12-07-2005 19:57:46




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 Re: 30 series vs 70 series in reply to Gene Dotson, 12-04-2005 09:11:29  
Yes, my other tractor is a 1974 870 open station. I will keep (aways) and restore both someday.



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Doug Boll

12-03-2005 12:40:20




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 Re: 30 series vs 70 series in reply to moo cow, 12-03-2005 09:12:39  
I like the early 830's but the 7o series are far superior. The 930 is a good workhorse but as clumbsy as a steam engine! The brakes and steering are poor to say the least. An 1850 Oliver is a much better handling tractor. I think Case made improvements all the way to the 94 series. And the Magnums are wonderful! We had a 970 for years with good service, also have a 1370 and a 1570. Just my thinking.

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big orange

12-03-2005 12:08:38




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 Re: 30 series vs 70 series in reply to moo cow, 12-03-2005 09:12:39  
The 1030's were just plain a mistake.70 and 90 series were good tractors,and the 930's were excellent.



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1030 Brian

12-03-2005 19:05:13




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 Re: 30 series vs 70 series in reply to big orange, 12-03-2005 12:08:38  
Werent the 1030 and 930 very similer other than a few things? (bigger bore, dry air cleaner, no caseomatic option on 1030, etc.) Just wondering why the 1030 is a mistake, but the 930 was exellent, bad luck maybe with a 1030? I know the had some rearend problems because of the higher horses.



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John Noname

12-04-2005 13:54:38




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 Re: 30 series vs 70 series in reply to 1030 Brian, 12-03-2005 19:05:13  
The biggest problem with the 1030 was that they didn't put in a heavier transmission/rear end. Virtually the same as the 930 with a souped up engine. The 1030 had majors problems on account of that in heavy soils where the power was too much for the rest of the drive train.



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big orange

12-04-2005 03:41:11




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 Re: 30 series vs 70 series in reply to 1030 Brian, 12-03-2005 19:05:13  
Had a 930 and 1030,both stock,neither had any major problems.The 930 would outpull the 1030,both tractors were dynoed and acceptable,plus the 1030 had gear whine that would drive you nuts.The 451's in the 70 series were gutzy but the 1030 plain left alot to be desired.



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John Saeli

12-03-2005 11:16:54




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 Re: 30 series vs 70 series in reply to moo cow, 12-03-2005 09:12:39  
Hey moo: We have a 730CK Diesel here also. Great Tractor!! We also have an 870 with over 5,000Hrs. Been a great tractor also. Power-Shift has never been touched. Engine was overhauled @ 4,000 due to a Cavitation Hole in the sleeve. My fault because I don't change Coolant like I should. Have a 2094, 2096 & 4690, all great tractors.



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moo cow

12-04-2005 18:59:56




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 Re: 30 series vs 70 series in reply to John Saeli, 12-03-2005 11:16:54  
Hey John, I often wonder if my dad made a mistake buying that 730 as a gas instead of a diesel. The original cost new, in 1966, would have made the diesel version cost less (I think). Even if the gasoline version cost less then, the steady rise in the price of gas since then would have made the diesel choice make sense in hind-sight.

My biggest concern is how the 730's design puts the gas tank and fuel filter and bowl directly over the battery. It sure makes working on the fuel filter risky when you have to do it in the field. Makes me wonder how many 430/470, 530/570, 730 and 830 gasoline tractors have burned over the years.

By the way, I should have included in my original post that I also consider the 430/470 and the 530/570 Case tractors manufactered between 1966 and 1974 to be excellent tractors as well.

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John Saeli

12-05-2005 04:25:12




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 Re: 30 series vs 70 series in reply to moo cow, 12-04-2005 18:59:56  
Hey Moo Cow: That 267 Diesel is a sweetheart. Smooth, Economical & lots of Torque. CASE made a big mistake by replacing their own line with the David Brown's.



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Jerry W

12-05-2005 05:29:20




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 Re: 30 series vs 70 series in reply to John Saeli, 12-05-2005 04:25:12  
I do not know the facts but I had always heard that it was an economic decision - that the David Browns were considerably cheaper to manufacture.

Jerry



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Dennis/Ohio

12-04-2005 00:58:49




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 Re: 30 series vs 70 series in reply to John Saeli, 12-03-2005 11:16:54  
Hi John,
I only have a 530 but have thought about adding a water filter. My understanding is the water filter adds chemicals to the coolant to reduce liner holes. Any thoughts?
Thanks..... ..



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Tom (Ks)

12-04-2005 08:30:46




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 Re: 30 series vs 70 series in reply to Dennis/Ohio, 12-04-2005 00:58:49  
Years ago some engines needed the water filter, then an additive was on the market to add to the antifreeze in place of the filter. Now you can buy the coolant with the chemicals in it allready.



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John Saeli

12-04-2005 08:43:23




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 Re: 30 series vs 70 series in reply to Tom (Ks), 12-04-2005 08:30:46  
I was going to install a water filter also, but never got to it. Fleetguard sells a coolant treatment that you just pour in. Kinda pricey, but so is an overhaul.



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Tom (Ks)

12-04-2005 08:59:09




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 Re: 30 series vs 70 series in reply to John Saeli, 12-04-2005 08:43:23  
Everyone should check the antifreeze with the PH strips every year and replace the coolant every two years if needed, but most people (me included) don't do that. The coolant will still be good but the other chemicals can be used up. We added treatment every other year before they came out with the newer antifreeze.



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