Majorman
Well-known Member
- Location
- Scarning, Norfolk, England
The engine from the E27N, Perkins L4 that I transported to Holland in Bits. More to follow.
Sunday Bitsa
- Thread starter Majorman
- Start date
The engine from the E27N, Perkins L4 that I transported to Holland in Bits. More to follow.
Sunday Bitsa
Bob Bancroft
Well-known Member
- Location
- Aurora NY
Interesting- a four cylinder diesel engine with three main bearings. Did they have any issue with keeping bearings in this engine?
Dieseltech
Well-known Member
- Location
- Akron, Indiana
The cranks liked to break sometimes.
Bob Bancroft
Well-known Member
- Location
- Aurora NY
I wondered about that. I see it's quite a beefy crank. But no sign of counter balancing. Any four cylinder diesel engine I am familiar with has five main bearings, and is counter balanced. The AC 226 four cylinder, three main bearing gas engine was a great engine, but earlier versions at least, were weak in the bottom end!
OP
OP
Majorman
Well-known Member
- Location
- Scarning, Norfolk, England
Three bearing cranks were common in diesels during the 1950's through to the 1960's. David Brown was still using them in their diesels quite late on. The Perkins L4 was a well like engine along with its later version the 4.270. They were used in a number of different combine harvesters and industrial machines and did not give problems with breaking cranks.
Strangely enough, the Fordson Major Diesel had a five bearing crank from its inception and that broke cranks for a pass time in its early days. The crank was very weak and would break during transport in the back of one of our service vans. It was modified and made of a different material which solved the problem but I still have an original in my petrol/kerosene E1A Major and that is still good after 70 years.
Strangely enough, the Fordson Major Diesel had a five bearing crank from its inception and that broke cranks for a pass time in its early days. The crank was very weak and would break during transport in the back of one of our service vans. It was modified and made of a different material which solved the problem but I still have an original in my petrol/kerosene E1A Major and that is still good after 70 years.
Janicholson
Well-known Member
Vibration dampening, metallurgy, crack prevention radiusing, and heat treatment can make 3 mains work. N+1 bearings whether 7 in a 6cyl, or 5 in a 4cyl. can still break if the above factors are neglected. Jim
Dieseltech
Well-known Member
- Location
- Akron, Indiana
The Perkins L-4 used in the Cockshutt PD 40 would sometimes break the crankshaft. I wonder if the bearing edge fillet area is ground wrong could be the reason for breaking. I've seen some SEVEN main six cylinder diesel cranks break too in the White-Hercules 478 cube engine. Some Ford three cylinder cranks and early four cylinder cranks would break also.
Janicholson
Well-known Member
Who is the smiling lass in the top edge?? Jim
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.
Copyright © 1997-2024 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