TRACTOR PARTS Allis Chalmers Case & David Brown Farmall & International Ferguson Ford & New Holland John Deere Massey Ferguson Massey Harris Minneapolis Moline Oliver & Cockshutt Kubota / Yanmar

TRACTOR MANUALS

Allis Chalmers	Case	Farmall IH	Ford 8N,9N,2N	Ford
Ferguson	John Deere	Massey Ferguson	Minn. Moline	Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Discussion Forum

Difference between Oliver 1855 diesel vs 1955 diesel

Welcome Guest, Log in or Register

Author

COWBOY

06-03-2001 18:27:35

Report to Moderator

Does anyone know the exact difference in the Oliver 1855 diesel and 1955 diesel.

They both have the same engine, Head, Blower, Frame, Trans, etc.

The only diffence I can find is that the 1855 and 1955 had diffrent injection pumps and the 1955 had more brake discs.

Also the 1955 had a engine cooler on the block (and the late 1855's also).

Both had a Waukasha 310 turbo diesel, which were the same.

Are these the only difference's?????

Will putting the larger injection pump on the 1855 make it essentially a 1955 ????

[Log in to Reply] [No Email]

WFE

06-04-2001 19:50:45

Report to Moderator

Re: Difference between Oliver 1855 diesel vs 1955 diesel in reply to COWBOY, 06-03-2001 18:27:35

It was my understanding that the injection pumps on the 1855 and 1955 were the same model of Roosa-Master unit. I believe 1955 was simply set to deliver slightly more max. fuel than 1855. Early 1855s, those produced prior to 1974, did not have an oil cooler, a fact which certainly contributed to the greater frequency of failures associated with the 1855 compared to the failures of 1955s. In '74 and later 1855s, a 1955 engine was used set at a lower power level equivalent to the earlier 1855s. Only differences of which I am aware between the two machines.

[Log in to Reply] [No Email]

COWBOY

06-04-2001 19:57:01

Report to Moderator

Re: Re: Difference between Oliver 1855 diesel vs 1955 diesel in reply to WFE, 06-04-2001 19:50:45

The 1855 and 1955 did have different pumps,....

My IT Manual gives the different pump numbers,....

I have been reading everything,... so I can find out exactly what the changes are.

But any more info is greatly appreciated.

[Log in to Reply] [No Email]

Shep

06-04-2001 05:53:57

Report to Moderator

Re: Difference between Oliver 1855 diesel vs 1955 diesel in reply to COWBOY, 06-03-2001 18:27:35

Yes Cowboy those are really the only differences in the two tractors. In fact many of the early 1855's now have the 1955 310 engine in them. Oliver had a program to swap out the 1855 engine and put in the 1955 at one time. Be aware there are some small differences in the engine and head between the 1855 and 1955 and even in the later 1855 engines. I found that out trying to get a head gasket for my 1855. Oliver made at least 2 different head gaskets for the 310 and I dont think the heads will interchange. Be safe and order parts based on the engine number.

[Log in to Reply] [No Email]

COWBOY

06-04-2001 06:06:07

Report to Moderator

Re: Re: Difference between Oliver 1855 diesel vs 1955 diesel in reply to Shep, 06-04-2001 05:53:57

Thanks Shep,....

I am told that the head gaskets were different between the Non-Turbo 1755 and turbo 1855 and 1955.

The reason is that the injection pumps on these tractors are bigger as the tractor got more HP.

The pump on this tractor of mine has a bigger pump than the original 1955 one. So, Debating on buying another pump, or rebuilding this one.

But, if I keep this one, it will be set for 1955 specs and output of fuel. That way we don't over boost the engine and drop the lower end.

[Log in to Reply] [No Email]

[Options] [Printer Friendly] [Posting Help] [Return to Forum] [Log in to Reply]

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home | Forums

Copyright © 1997-2023 Yesterday's Tractor Co.
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy