(800) 853-2651
SHOP NOW

Update on L John Deere engine

R

Richard G.

Well-known Member
80 year old friend and I worked on his L JD engine yesterday.
Made some gaskets and got the oil pan, timing gear cover, flywheel cover and flywheel back on.
Next will be the clutch and pressure plate and clutch housing.
Very interesting engine.
One strange thing is that the main bearings are inserts in the block and babbitt main caps.
Another is the fact that it has no main rear seal.
Has an oil slinger on the back of the crankshaft.
It is an early Hercules engine and the book says that that is the way they came.
The engine is much cleaner than these photos make it look.
Richard in NW SC

cvphoto147530.jpg


cvphoto147531.jpg


cvphoto147532.jpg
 
Keep up the good work. You never know what you will find working on things. I imagine it can be a challenge to pour babbitt for the main bearings in the block. In the early days of the Ford flat head motors. Ford engineers tried floating rod bearings for a few years , the bearings spun in the rod also. I don't think that worked out well. Stan
 
There were a few engines made with no rear main seal.

I worked at a marina right out of high school, we would get new boats in, sometimes they would stand them on end to get more on the trailer. The Volvo I/O would dump oil out the rear main, because there was no seal, only a slinger. Clean up the mess, put oil back in, not a drop would leak!

One place I worked had a Ford delivery truck with a 351W. One day it started dumping oil out the rear main. It had always had a very small drip, but suddenly it was pouring! I pulled the engine expecting the worse, instead I found there was no lower half of the seal in the main cap, left out at the factory! What happened was the spring in the PCV valve collapsed, pressurizing the crankcase.
 
You must log in or register to reply here.

Similar threads

C
Farmall Super A oil leak
Replies
9
Views
455
CYLASBELKNAP
C
2
John Deere R
Replies
4
Views
839
2 Fingers
2
S
Rear Engine Oil Leak on Gas IH 674 (C-200 Engine)
Replies
17
Views
651
Ozlander
O
R
2 of my 80 year old friend's tractors
2
Replies
20
Views
1K
Richard G.
R
C
1650 cockshutt filters and main engine clutch
Replies
5
Views
363
Millwright
M
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.

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

Back
Top