Yesterday's Tractor Co. Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads
Tractor Parts

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

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

Research & Info
Articles
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
Glossary

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

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
TractorLinks.com
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
  
John Deere Tractors Discussion Forum
Show Parts for Model:

Early 4020 Head installation questions

Welcome Guest, Log in or Register
Author  [Modern View]
Jd40203020

03-07-2018 21:14:19




Report to Moderator

I am going to be istalling the head on my 1964 ( big injectors) 4020 diesel. I want some expert tips so I don't end up with annoying oil leaks near the right rear corner. Head has been plained and valves replaced. Is it best to install the gasket dry, or should I use a spray on copper head gasket sealer? Should I re-use the old head bolts or buy new? What is the correct / newest torque procedure for the head bolts?

Thank you for your help as I only want to do this once!

[Log in to Reply]   [No Email]
Jd40203020

03-08-2018 10:24:56




Report to Moderator
 Re: Early 4020 Head installation questions in reply to Jd40203020, 03-07-2018 21:14:19  
Sounds like I'm buying new bolts! Is the torque pattern and spec the same as the original service manual?

Thank you all for the help!



[Log in to Reply]  [No Email]
tomstractorsandtoys

03-08-2018 16:59:07




Report to Moderator
 Re: Early 4020 Head installation questions in reply to Jd40203020, 03-08-2018 10:24:56  
Buy the new torque to yield bolts and the kit will come with instructions. Do not use washers as the new bolts have them made onto the bolt. That is how you tell them from the regular bolts. They are all that my dealer ever sells anymore. Tom



[Log in to Reply]  [No Email]
matthies

03-08-2018 12:55:07




Report to Moderator
 Re: Early 4020 Head installation questions in reply to Jd40203020, 03-08-2018 10:24:56  
Ask a service manager for a copy of the torques and sequence.



[Log in to Reply]  [No Email]
buickanddeere

03-08-2018 10:20:25




Report to Moderator
 Re: Early 4020 Head installation questions in reply to Jd40203020, 03-07-2018 21:14:19  
New fasteners , new hardened washers , chase the block threads with a tap and clean them. Remove the top thread from the block as it will be raised and is not allowing the head to clamp down the entire gasket across the entire machined surface .



[Log in to Reply]  [No Email]
matthies

03-08-2018 07:48:00




Report to Moderator
 Re: Early 4020 Head installation questions in reply to Jd40203020, 03-07-2018 21:14:19  
I use Ultra Black Permatex, very sparingly, along the sides/edges of the gasket and in the back corner. Don't know how many fingers have been in these old tractors and if they got crazy with a buffing wheel along the edge and have removed some casting. chris



[Log in to Reply]  [No Email]
D-

03-08-2018 05:59:41




Report to Moderator
 Re: Early 4020 Head installation questions in reply to Jd40203020, 03-07-2018 21:14:19  
Don't put anything on the gasket. Original bolts were grade five. If yours are, replace them.
I use the original torque procedure but go to 150# on retorque.



[Log in to Reply]  [No Email]
tomstractorsandtoys

03-08-2018 05:42:37




Report to Moderator
 Re: Early 4020 Head installation questions in reply to Jd40203020, 03-07-2018 21:14:19  
New head bolts. I like the torque to yeild bolts because you do not need to re-torque them. Sooner or later every early 4020 will leak at the back corner. It is just the design that was changed on the side console tractors because of that problem. A good job and it will be along time untill it happens. One thing I have been doing on the early tractors with the big injecters is if both the head needs redone and the injecters need rebuilt we will but a pencil injecter head,new pencil injecters and a set of used lines.It usually cost about the same as rebuilding the old injecters ans with ebay there are lots of heads around at reasonable prices. Tom

[Log in to Reply]  [No Email]
SVcummins

03-07-2018 21:33:13




Report to Moderator
 Re: Early 4020 Head installation questions in reply to Jd40203020, 03-07-2018 21:14:19  
I followed the old manual instructions dry gasket ran the engine for 5 hours on the dyno the loosened the head bolts and retorqured em . Thatís what the manual said to do that was 15 years ago no leaks so far



[Log in to Reply]  [No Email]
SVcummins

03-08-2018 13:53:44




Report to Moderator
 Re: Early 4020 Head installation questions in reply to SVcummins, 03-07-2018 21:33:13  
My head has the pencil injectors I should add



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

Hop to:


TRACTOR PARTS TRACTOR MANUALS
Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a company you can trust and have generous return policies. Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ About Us ]

Home  |  Forums


Copyright © 1997-2018 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