Welcome! Please use the navigational links on your left to explore our website.

Company Logo Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
Classified Ads
Photo Ads
Tractor Parts

Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs

Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
John Deere Tractors Discussion Forum

lubrication of crank/pistons

Welcome Guest, Log in or Register
Author  [Modern View]

11-08-2019 15:20:46

Report to Moderator

Can someone explain to me how the crank and pistons are lubricated in a john deere 620? I have all the tech manuals but can't really find an explanation as to how the oil pump works to supply lube to those parts.

[Log in to Reply]   [No Email]
Mike M

11-09-2019 07:05:00

Report to Moderator
 Re: lubrication of crank/pistons in reply to bobgrimes, 11-08-2019 15:20:46  
Are you having a lack of oil to the main bearings issue ? Several guys here have found the rubber packing between the main bearing housing and the main case to seal the oil passage swelled and shutting off the oil flow.

[Log in to Reply]  [No Email]

11-08-2019 16:52:46

Report to Moderator
 Re: lubrication of crank/pistons in reply to bobgrimes, 11-08-2019 15:20:46  
Oil pump sends oil to the filter canister where it is sent to the right and left main bearings. There is a hole drilled in the crank that leads from the main to the rod journals. Each side supplies oil to that rod side. Not sure about the 620 but some rods are drilled so that oil makes it's way to the wrist pin bushing to lube it. The piston just gets splashed with whatever oil there is flying around in the crankcase.

[Log in to Reply]  [No Email]
cole in mo.

11-08-2019 16:48:27

Report to Moderator
 Re: lubrication of crank/pistons in reply to bobgrimes, 11-08-2019 15:20:46  
The oil pump supply's oil to each main bearing, the mains then send oil to the rods, oil splashing around from the spinning crank oils the piston skirts and bore.

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:

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 © 1997-2020 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