Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Tractor Talk Discussion Forum

Standard or overbore engine kit-- which to use

Welcome Guest, Log in or Register
Author 
Darren in TN

07-21-2005 06:46:43




Report to Moderator


Howdy, all.
I'm about to do an overhaul on an abused tractor (a Ferguson TO-30) and want to know what your opinions are on standard vs. overbore engine kits? This will be a working tractor on our farm, so I'd like it to last a good long while. The tractor isn't underpowered, so I really don't have any reason to go to an overbore kit unless it gives the tractor some advantage in regards to longevity (or some other advantage you guys know about.) In your experience is there any difference in how long an engine will last with either of the two kits?

Thanks in advance for your comments,
Darren

[Log in to Reply]   [No Email]
cdmn

07-21-2005 20:57:46




Report to Moderator
 Re: Standard or overbore engine kit-- which to use in reply to Darren in TN, 07-21-2005 06:46:43  
I'm pretty sure the engine has replaceable wet sleeves.



[Log in to Reply]  [No Email]
Mike M

07-21-2005 18:48:19




Report to Moderator
 Re: Standard or overbore engine kit-- which to use in reply to Darren in TN, 07-21-2005 06:46:43  
I think some of those dry sleeve over bore kits may leave the sleeves out and run in the block.I'd check it out closer. I wouldn't want this as I'd rather be wearing out a replaceable sleeve. But if the overbore kit still used sleeves but offered more power I'd go for it. Never heard many complaints of too much power. Your tractor should have a water pump so it should cool ok. I was advised once not to put the soup up kit in a Farmall C that didn't have the water pump as it would over heat.I took this advice.

[Log in to Reply]  [No Email]
txgrn

07-21-2005 17:36:34




Report to Moderator
 Re: Standard or overbore engine kit-- which to use in reply to Darren in TN, 07-21-2005 06:46:43  
I have several tractors that are 30 to 40+ years old and over 2/3 still have their original rings. I doubt that they were hangar queens.

If it needs them put em in. If not don't do it unless you just want to. Boring is expensive and not necessarily a requrement. Depends on what you find when you get there.

Read the min-max specs in the service manual.

Mark



[Log in to Reply]  [No Email]
Coloken

07-21-2005 10:04:00




Report to Moderator
 Re: Standard or overbore engine kit-- which to use in reply to Darren in TN, 07-21-2005 06:46:43  
Havn't done an engine for years, but one of the reasons for an overbore set was it raised the compression ratio. This made the older low compression engines more adapted to modern gasoline. I can think of no reason to not go overbore, depending on the engine involved and that it doesn't "soup it up" too much.
Kennyp



[Log in to Reply]  [No Email]
1945 A

07-21-2005 07:58:16




Report to Moderator
 Re: Standard or overbore engine kit-- which to use in reply to Darren in TN, 07-21-2005 06:46:43  
Your machine shop should be able to tell you the condition of the bores, and that will tell you whether standard pistons/rings can be used or if you need to have the block bored.
Either way (standard or oversized) will work for a long time IF done correctly (bores straight/properly finished, etc.).
Only other advantage to oversized is more displacement. All things being equal (same head, carburetor, cam, etc) I don't know how much difference you'd notice in operation...
Good Luck on whichever way you decide!

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

Hop to:


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. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 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