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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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oliver 1950 gm

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12-31-2003 18:05:27

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I want to know the cubic inch of an oliver with an gm in it? And is their anyone out their who knows how to make them RUN??

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01-04-2004 12:21:58

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 Re: oliver 1950 gm in reply to kevin, 12-31-2003 18:05:27  
Yes a GM 4-53 is 4 x 53 cu in per cylinder, however that is a bit misleading as they ars 2 cycle engines. Every down stroke is a power stroke. Thus when a 2 cycle engine turns as many RPM as a 4 cycle engine you have twice the power strokes. So to compair engines you wind up with 424 cu in. However on a 4 stroke engine there is some enertia you have to take into account. as a result the gm will perform best when running at high end rpm's not lugged. I have worked on several GM engines, all use the same numbering system. As an example a locamotive engine 16-278 A would have 16 cylinders 278 cu in per cylinder.

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01-18-2004 05:12:35

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 Re: Re: oliver 1950 gm in reply to R.D. OHIO, 01-04-2004 12:21:58  
where could i get a hold of 1 of those locamotive motors ? sure would like to mount it in my 1900 shouldnt have to exstend frame more than 10 feet

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01-04-2004 14:27:16

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 Re: Re: oliver 1950 gm in reply to R.D. OHIO, 01-04-2004 12:21:58  
Dear RD Ohio,
Can you please send me your email adress so I can ask a few more questions?
thanks for everyones info!!

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01-01-2004 20:58:05

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 Re: oliver 1950 gm in reply to kevin, 12-31-2003 18:05:27  

Here is a picture of me at age 21 pulling our 1966 model 1950 Oliver at Springfield,MO in Aug 1970.Made the only full pull in the 15,000 lb class and got $100 and a big trophy.

Drove it 100 miles down and 100 miles back home with the straight pipe on.It ran 25 mph and coming home at dusk the whole town of Walnut Grove,MO was on their lawns listening to that little 4-53 scream.

Had one size over injectors and turned 3200 rpms.Dynoed 120 hp and pulled high 2nd with 23.1x34's.Pulling was sure fun back then.

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01-03-2004 19:25:26

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 Re: Re: oliver 1950 gm in reply to 1206SWMO, 01-01-2004 20:58:05  
Ya them series 53's really scream the Us tanks use them the series 53 and 92.. the 6V53 with todays tec puts out 450 H.P with inter cooler, after cooled, twin turbo and do they scream around 3800 Rpm not bad for a diesel... thats a nice tractor you had there. in that pulling picture that 53 wasnt smoking that bad for bigger injectors you could realy make that 53 haul with N55 it would put out around 140h.P but i woudl not want to get to rought with her..

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01-01-2004 12:21:51

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 Re: oliver 1950 gm in reply to kevin, 12-31-2003 18:05:27  
has it been along time sence it last ran if so take a braker bar and turn the engine over if it turns over then its not stuck check fluids and fuel up and start it... if oil is old replace with new oil, oil looses its luberication every 2 years or so....

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01-01-2004 10:20:19

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 Re: oliver 1950 gm in reply to kevin, 12-31-2003 18:05:27  
A 1950 tractor had a GM 4-53 from the factory. In other words, 53 Cu. In. per cylinder X 4 Cylinders.

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01-01-2004 12:09:19

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 Re: Re: oliver 1950 gm in reply to bastar, 01-01-2004 10:20:19  
Ya total cubic inch was 212, with N series injectors, N selve and piston ,4 valve head the first 1900's came out with HV injectors that lost power and over fueled... so they went to N series for more power and cleaner running engine... Later 1900 had S45's but you could go to N45.. (N stands for Needle valve) also the first 1900's came out with 2 valve head and ran slower then the 4 valve head... if im correct the normal full load RPM for a 2 valve head is 2300 and the 4 valve head was 2600... i know ALL series 53 engines can rev to 3000 easy but most 53's normaly run 2800 RPM... series 51, series 53, series 71, series 92, series 110, series 149 use there series number to find displacement....

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John Kassay

05-17-2005 21:31:39

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 Re: Re: Re: oliver 1950 gm in reply to andrew, 01-01-2004 12:09:19  
Andrew. You seem to know your stuff. I have a 1967 Pettibone Backhoe with a Detroit 3-53 Diesel in it. Can't start it in the winter. Once things warm up, no problem. I am considering replacing the injectors to improve my cold start problem. I can only assume N45 is the proper injector. Can you confirm this is the proper injector for that year Detroit 3-53? And, should I even be considering the injectors as suspect in my cold start problem? Appreciate any advice. JJK.

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Steve Watr

08-02-2005 07:32:53

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 Re: Re: Re: oliver 1950 gm in reply to John Kassay, 05-17-2005 21:31:39  
Hey John, I posted a reply to your inquiries about my Multihoe from over a year ago. I see this post is more recent so I thought I'd try replying here in the hopes you get to see it. How did you overcome your tranny problem. I am getting ready to finnally put my tranny back in this month, after tearing it down, and replacing some stuff. Go to the multihoe area to read about it. Cold start problems, yup, know what you maen. Everybody I talked to said "just use either" I have even seen a kit somewhere that lets you push a button from the driver's seat and it squirts either right into the airbox after teh filter.

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