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

Shop Now

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

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Allis Chalmers Discussion Forum
:

wc engine, do i OH it.

Welcome Guest, Log in or Register
Author 
Rosco Sywter

12-16-2005 16:46:02




Report to Moderator

i have a 1936 wc. it starts and runs good, and has good power. oil pressure was not great, but always run ok. i have used it on a grain auger for the last 25 years. i suspected a leaky head gasket because of the bubbles in radiator. i pulled the head, and valves were well carboned up. the original iron pistons were well carboned also. there is a noticeable ridge on the sleave, so they are worn also. my choices are to clean it up, and put it back together, or do some overhauling. am i asking for trouble if i just do the head. how expensive and hard is it to do the sleaves pistons and head. should i do the bearings too? TIA for any helpful advise.

[Log in to Reply]   [No Email]
Tom Davison (PA)

12-17-2005 09:33:54




Report to Moderator
 Re: wc engine, do i OH it. in reply to Rosco Sywter, 12-16-2005 16:46:02  
You stated that you used this tractor on a grain auger for 25 years. The carbon was probably caused by running it a a low RPM and/or the same RPMs for an extended period. We had this trouble on a 16 horse Briggs & Stratton that ran our whitewash pump. You can partially overcome this problem by running the engine at higher RPMS for a period of time every now & then. I agree that overhauling the head may cause bearing noises. We had this happen on a Dodge truck. Some valves were bad, we had the heads overhauled, and a lot of bearing noises appeared. If it is just the head gasket leaking, I would clean the carbon from the valves, replace any bad valves, and put it back together. Otherwise, one of the previous gentlemen is correct, do a complete overhaul.

[Log in to Reply]  [No Email]
Butch(OH)

12-16-2005 18:38:33




Report to Moderator
 Re: wc engine, do i OH it. in reply to Rosco Sywter, 12-16-2005 16:46:02  
What usualy happens in cases like this is once you start tearing it down it's very hard to find a point to stop other than completely apart. There will always be something worn underneath of what you remove. The fact it had low oil pressure tells you that there is clearances to fix too. By the time you buy a kit, have the head done and possibly the crank you better have 2K standing by for motor work. Feel lucky if you end up with less. If you realy dont want to put your savings into it and only use it for a few hours each year get the head done and install it with new gasket set (called a head set). Be sure to clean to deck well. 20-50 oil will help with oil pressure as will a coin of proper size under the pressure relief spring. The pressure relief is external, on the right side of the block about halfway youll see a big hex, about 1 1/8" behind the frame rail. Remove the hex cap, be sure not to loose the spring under it and shim the spring with a coin, thinken a dime does it but its been a while. It is possible that what JC said will happen, an increase in oil consumption due to increase in compression but I doubt youll need a drum strapped to the hood to keep oil in it. It is also possible that it will use no more oil than before. Heck the darn thing ran good before didn't it? will run nothing but better with valve job. If you decide later you want to finish the overhaul your only out the head gasket, your rebuilt head will work just fine over your new sleeves and pistons.

[Log in to Reply]  [No Email]
Mike at Mo

12-16-2005 18:37:10




Report to Moderator
 Re: wc engine, do i OH it. in reply to Rosco Sywter, 12-16-2005 16:46:02  
I agree with JC. If you just rebuild head the weak area will be the rings and engine will probably start smoking and using more oil. If you are going to keep it to use I would do the whole rebuild. Mike at Mo.



[Log in to Reply]  [No Email]
J.C. IN AZ.

12-16-2005 17:01:22




Report to Moderator
 Re: wc engine, do i OH it. in reply to Rosco Sywter, 12-16-2005 16:46:02  
I suggest the complete OH as a head job will increase Compression to the point that you won't be able to keep oil in it. You will have a lot of blown by around the Pistons. Sounds like it is a good Old Tractor and a new lease on life will make you and it feel great. Merry Christmas. John



[Log in to Reply]  [No Email]
Dick L

12-17-2005 08:09:13




Report to Moderator
 Also in reply to J.C. IN AZ., 12-16-2005 17:01:22  
I have seen on both cars and tractors that when gringing the valves on a engine that has low oil pressure that the increased compression causes the rod bearings to start making loud noises and if kept running you find a hole in the pan or side of the block. Probly both. the burning of oil being the small problem.

third party image

This was a different problem but is still what you might have to look forward to.

[Log in to Reply]  [No Email]
slow mo57

12-17-2005 22:08:21




Report to Moderator
 Re: Also in reply to Dick L, 12-17-2005 08:09:13  
I hope that was not on of your pullers was it?



[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