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
Kountry Life
Harry Ferguson Tractors Discussion Forum

Manifold and Cylinder Head Nuts...

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

09-10-2013 06:28:35

Report to Moderator

I'm planning to use new nuts when I reinstall the cylinder head and manifold on the TO-20. (I did not replace the studs on either one: they didn't come out with the nuts, and they looked good, so I just cleaned up the threads.)

The manifold nuts are shown in the Parts Book as "3/8 NC Hex Special" - what's "Special" about them?

I was just going to get Grade 8 nuts at my local hardware or auto parts store, or order them from McMaster Carr when I order some other bolts, etc.

I've checked the archives, so I know opinions vary on using brass manifold nuts. (The ones I removed aren't brass.)

Same question on the cylinder head nuts: anything "special" there?

[Log in to Reply]   [No Email]

09-11-2013 19:03:39

Report to Moderator
 Re: Manifold and Cylinder Head Nuts... in reply to Tom Bowman, 09-10-2013 06:28:35  
my recollection is the brass nut on the manifold thing was for Ford flathead engines on the 9N/8N. One or more of the studs threaded into the jacket of the engine on those engines. Steel nuts on the Ferguson. Stainless nuts are probably fine. Some of the nuts are difficult to get a socket/wrench on them due to the casting of the manifold. The "special" might be related to the shape,height of the nuts because of that clearance problem I mentioned.

[Log in to Reply]  [No Email]
Tom Bowman

09-10-2013 16:54:49

Report to Moderator
 Re: Manifold and Cylinder Head Nuts... in reply to Tom Bowman, 09-10-2013 06:28:35  
Thanks, 2 - Grade 8 it is.

And Bill, I may use stainless on the manifold. I'm certain the studs aren't stainless.

[Log in to Reply]  [No Email]

09-10-2013 12:19:52

Report to Moderator
 Re: Manifold and Cylinder Head Nuts... in reply to Tom Bowman, 09-10-2013 06:28:35  
Tom When you say manifold I think "exhaust" Personally I don't like brass - it seems to gall and when it does heat doesn't seem to help. I like stainless steel on exhaust but it is important to remember don't use stainless bolts or studs when using stainless nuts or visa versa. Stainless against stainless with heat will gall - it might as well be called welded. Stainless with steel is wonderful. My 2 bits.

[Log in to Reply]  [No Email]

09-10-2013 15:23:24

Report to Moderator
 Re: Manifold and Cylinder Head Nuts... in reply to oldmisterbill, 09-10-2013 12:19:52  
Grade 8 on the heads or expect them to strip around 65lbs.

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

Hop to:

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

Website Accessibility Policy