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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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99/90 questions

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chuckster

12-20-2003 07:41:09




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Ijust bought it says 99 but Iwas told that the 99 only came as diesl power.It has the four cylinder gas. What kind of horse power would this have.and any other information would be appresiated.This is my first oliver THANKS




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chuckster

12-22-2003 17:36:04




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 Re: 99/90 questions in reply to chuckster, 12-20-2003 07:41:09  
Thaks alot about the HP and the RPM specs I was wondering at one time was there a kit avaliable for the brakes so i could use them indaviduly because their is only one lever that is bacicly a parking brake



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RAB

12-23-2003 11:37:52




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 Re: Re: 99/90 questions in reply to chuckster, 12-22-2003 17:36:04  
That parking brake as you refer IS THE brake. We are talking here of something probably designed in late 1929 or early 1930. Very effective if adjusted up well but needs some horsepower to pull it on while attending to other things, like steering! It is nowhere near as good as foot brakes of course The industrial 900 had hydraulic rear wheel brakes and those for the 90/99/99 Industrial were mechanically applied, but I don't know whether either are easily found. You need different axle carriers accordingto the parts book. I would think you would be lucky to find a kit for rear wheel brakes and if you do, please let me know!
You may be able to arrange for operation of the band brake from a foot pedal via an hydraulic cylinder but..... .watch the loadings....remember that brake was not designed to skid the wheels by being applied with a force much greater than that of a man pulling on that handle.
Regards, RAB

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Chuckster

12-23-2003 18:30:32




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 Re: Re: Re: 99/90 questions in reply to RAB, 12-23-2003 11:37:52  
Thanks for information im going to pick it up saturday and i was just wondering.All i own is AC and never thought that i would own an OLIVER



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OlMack

12-22-2003 09:56:57




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 Re: 99/90 questions in reply to chuckster, 12-20-2003 07:41:09  
My 1951 99 with the 4 cyl. dyno'd 60 HP even.



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B A Star

12-22-2003 09:53:04




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 Re: 99/90 questions in reply to chuckster, 12-20-2003 07:41:09  
I have copies of all of the Nebraska Tractor Tests that were performed on all of the Oliver and white tractors, in fact I have most of the tests. Test # 451 was performed from 9/29 to 10/9/1950. "Test B -- 100% MAXIMUM LOAD - TWO HOURS" 62.28 Horsepower 1125 RPM 6.252 Gallons per Hour 9.96 Horsepower Hours per Gallon. This was the gas tractor with a 1 1/4" Carburetor size. I can scan the complete test and post if you all like. I was a personal friend of Dr. Larson, the engineer in charge of tests. Our local Antique Club (Camp Creek Threshers and Antique Machinery Association) has all of the test equipment on display that was used at the time for these tests.

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old

12-20-2003 10:50:02




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 Re: 99/90 questions in reply to chuckster, 12-20-2003 07:41:09  
The Neb. test says a 99 gas is 62HP



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RAB

12-21-2003 03:32:12




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 Re: Re: 99/90 questions in reply to old, 12-20-2003 10:50:02  
Old, wrong brand of cornflakes this morning!
Test #451 states 54.5 belt horse power at rated output and 59 at maximum load. I think you may be quoting the tests for the 6 cylinder DIESEL, not the 4 cylinder gas.
Regards, RAB



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OLD

12-21-2003 07:49:54




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 Re: Re: Re: 99/90 questions in reply to RAB, 12-21-2003 03:32:12  
My list has oliver 99 gas 62.30HP engine hi ilde 1200 what can I say I can only read what thelist has it doesn't say diesel it says gas. My list doesn't have a 99 diesel in it it has a super 99 diesel



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RAB

12-21-2003 10:18:35




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 Re: Re: Re: Re: 99/90 questions in reply to OLD, 12-21-2003 07:49:54  
Old,
I'm looking at my book 'Nebraska Tractor Tests Since 1920' by C H Wendel.
Has test #0451 Oliver 99 with 443 CID 4 cylinder - maximum load 58.98 belt horsepower. Hi idle 1125rpm
Test #0557 Oliver Super 99D with 302 CID 6 cylinder - max belt load 62.39 HP.
Now, in ' Oliver Hart-Parr' by Wendell it says slightly over 62 maximum belt horsepower in test #0451!
My 90/99 Operator's Manual issued 3-1-48 indicates that the full load governed engine speed for both machines was 1125 rpm. Please tell me when it was increased to 1200rpm - I'm always keen to learn new data about these old Olivers - as this would probably be more than enough to add another 3 HP.
I would suggest that both cannot be correct (well, not at the same time), and would personally rather go with the Nebraska test details version. Perhaps your book shows the original Nebraska test #0451 details. If so please confirm. Looking forward to your reply.
Regards, RAB

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J. Schwiebert

12-22-2003 05:54:24




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 Re: Re: Re: Re: Re: 99/90 questions in reply to RAB, 12-21-2003 10:18:35  
I was looking for other things and then I thought I would check this RPM thing. In the Oliver shop manual it lists 1200 as the High idle speed and 1125 ats rated load speed. Book was from 1948



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old

12-21-2003 17:39:59




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 Re: Re: Re: Re: Re: 99/90 questions in reply to RAB, 12-21-2003 10:18:35  
I got the list from the Neb test internet site and I printed out all of it I could from Allis to Oliver. What can I say either there web site is wrong or maybe they tested another tractor. I kept hearing of the Neb. test so I looked it up on the net and found it and there list that I have



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RAB

12-22-2003 01:04:46




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 Re: Re: Re: Re: Re: Re: 99/90 questions in reply to old, 12-21-2003 17:39:59  
So which test are you referring to?

It might help a bit more if you wern't quite so coy with your source test numbers.
Regards, RAB



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old

12-22-2003 07:30:22




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 Re: Re: Re: Re: Re: Re: Re: 99/90 questions in reply to RAB, 12-22-2003 01:04:46  
www.reunionofthepast.8m.net/Nebraska_test_Ratings Thats why I didn't post it its long and after that if you want say Oliver you need to go even more on the address but that should get you in to the ball park so to speak



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RAB

12-22-2003 11:47:42




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 Re: Re: Re: Re: Re: Re: Re: Re: 99/90 questions in reply to old, 12-22-2003 07:30:22  
I've seen that site. Doesn't bear that much ressemblance to the tests carried out (per the book). Many have higher than supposed spec for hi-idle and many have higher HP ratings than in the book. Can't see that the book has got that much wrong, what with all the other detail given on each individual test.
If the size of the horse power has changed (got smaller) or the higher figures are taking into account higher rated rpm, then they are NOT the Nebraska results. I think you may need to cross-reference those results and not expect them to be so definitive.
BTW the only reference (I can find) to 1200rpm for the 443CID is on the 900 Industrial, and that wasn't even tested at Nebraska. I could understand a machine with foot throttle, might be allowed a slightly higher limit as this would not likely be a continuous rating.
Regards, RAB

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Lee W

12-20-2003 08:14:15




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 Re: 99/90 questions in reply to chuckster, 12-20-2003 07:41:09  
The 90& 99 were Kerosene and Gas tractors, the 99 was the gas tractor only difference was the head. They were both 443 cu in. I think they were rated around 50 hp. The styled 99 used a six cyl gas or diesel, with the same four speed transmisson. There was also a 900 Industrial with a high altitude head that was rated around 60 hp.



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RAB

12-20-2003 10:26:46




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 Re: Re: 99/90 questions in reply to Lee W, 12-20-2003 08:14:15  
Don't forget that little Super 99 GM..... .
Regards, RAB



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