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Tractor Talk Discussion Forum

1950 and 1950t Oliver

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dave from MN

11-13-2005 05:33:14




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What is the difference in these models? Which one is a better machiine




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Jon Hagen

11-13-2005 06:12:45




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 Re: 1950 and 1950t Oliver in reply to dave from MN, 11-13-2005 05:33:14  
The 1950 has that great little Detroit 4-53 engine which has great durability and power.

The 1950T is a classic example of turbocharging and cranking up the power 30% on an engine that was never built for it. That little 310 walk-apart engine that was fairly durable at 60-70 HP non turbocharged,was a disaster at 105+, with few lasting 2500 hrs. By the time most blew up,they had blown a half dozen or more head gaskets. I have seen cracked blocks,cracked liners,broken rods,broken crankshafts on this sorry engine. Bad idea. I still run two of them(1950T) that were repowered with reliable engines 30 years ago. Good tractors except for that sorry engine.

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Don-Wi

11-13-2005 18:15:07




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 Re: 1950 and 1950t Oliver in reply to Jon Hagen, 11-13-2005 06:12:45  
The 310's weren't all that bad. The ones w/ the most problems were in the early 1855's, the ones w/out the oil coolers. The 1950-T had a cooler from the start, as well as the 1955's. I'm not saying the 19's never blew up, but w/ the added oil coolers and other improvements (12 pt. capscrews, 1 pc wrist pins, etc etc....) We've got a later model 1855 with the oil coooler and the updates, 600 hours on an overhaul. We've put 200 on it since we bought it, and it pushes 105 on the dyno, and runs just fine.

We have a 1755 on the other hand, no turbo was ever installed on these, and it's got a blown engine.

One thing I wish they had were deeper oil pans, that 8 qt capacity definately doesn't help. Donovan from Wisconsin

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Jon Hagen

11-13-2005 19:13:04




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 Re: 1950 and 1950t Oliver in reply to Don-Wi, 11-13-2005 18:15:07  
Thanks Don, Do you know what the upgraded 310 had to cure the head gasket blowing problem? The early ones like mine (late 60's) would blow atleast one or two per year,even if we took care to lightly load the engine and never use starting fluid. Before we gave up and repowered the tractors, we tried the factory fixes of the time that consisted of never reusing a head bolt,using antiseize and higher torque on the bolts and the new black head gasket. Nothing seemed to help much as we still would pop several head gaskets per summer. I seem to remember that the 310 only had 4 head bolts per cylinder. Liner vibration was severe enough to wear out the lower liner mount in the block which caused the top lip to crack off the liners because of no support and much vibration at the bottom.

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Don-Wi

11-14-2005 06:51:10




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 Re: 1950 and 1950t Oliver in reply to Jon Hagen, 11-13-2005 19:13:04  
No idea why any engine would blow that often, other than not being re-torqued after warm up. Had that on my 1600 this summer after rebuilding it. So far I"ve put another 10 hrs or so on it since only running the blower and so far so good. I"ve heard of some people having problems w/ head gaskets, but I haven"t been around long enough to know what remedies there are for that.
Donovan from Wisconsin

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Josh H

11-13-2005 05:49:22




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 Re: 1950 and 1950t Oliver in reply to dave from MN, 11-13-2005 05:33:14  
1950 has a 4 cylinder detroit diesel engine. 1950-t has a 6 cylinder turbocharched waukesha 310. The 1950 had the 2 speed hydra power, and I think the 1950-t had the option of the 3 speed over-under. The 310 engines had some problems, but if i had my pick i would take a 1950-t with over-under.
Josh



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bradk

11-13-2005 06:28:31




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 Re: 1950 and 1950t Oliver in reply to Josh H, 11-13-2005 05:49:22  
Josh is correct in explaining some of the differences.A 1950-t with correct engine & cooler updates would give reliable service.The 1950 is a good choice too.Being a 2-cycle diesel w/supercharger,the engine needs to be kept wound up tight,other wise it will fall on it's face.Both tractors have about the same HP 100-105.My choice would be a 1950(we have two)for the simple fact that it's way easier on fuel.~brad

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subnit

11-13-2005 06:41:19




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 Re: 1950 and 1950t Oliver in reply to bradk, 11-13-2005 06:28:31  
When i started farming in 74 , my dad had an 1850 and we thought a 1950 would be a good addition for the additional acres I had rented. So I bought a 1950 with the detroit and every one told me to wear earplugs or you will be deaf in a year. That sort of bugged me. i had a friend who had a 4430 and of course the noise difference of those cabs was astounding. I put the 1950 up for sale and bought a 4430 and 3 months after selling the 1950 it blew up. The guy that bought it never said a word about it . It was one of those times someone up above was looking out for me.

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