I had to replace the head gasket on my Farmall M this summer. Under the valve cover is a 1/4 inch tube that runs from the front of the engine to the back. Not sure what this is or what it does. There was a small hole in it and lots of gunk on the tube and on the valve cover. Went to purchase a replacement tube and found out the part is no longer available. Local International dealer mentioned bronzing the hole as an option. As I was cleaning the tube it looked like the hole may have been there for a reason. I did bronze it so the hole is covered. Can someone tell me what the tube does and is there suppose to be a hole in it?
- Thread starter mkbb
- Start date
Janicholson
Well-known Member
The tube is important. It is used to vent the crankcase into the air cleaner. (early version of PCV) there is a hose connection that leads to the air cleaner to assist in drawing out Crankcase fumes. caseih.com parts diagrams show the connection. (easily made) It will show much more Blowby out the road draft tube if plugged up. Jim
Athol Carr
Member
The tube also vents the governor case. The tube at the front connects to the tube from the governor case. AS stated elsewhere the tube also collect fumes from the valve cover and takes it all to the air-cleaner
Wayne in MN
Well-known Member
Drill out the hole! It needs to be there for crancase fume venting purposes!!
rustyfarmall
Well-known Member
Sounds like your local IH dealer is not very well educated on the classic Farmalls.
Tyler Jackson
Member
Yes DEFINETLY drill the holes back out. If the line is clogged up get some compressed air and blow it out
Similar threads
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.
Copyright © 1997-2024 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