You can purchase thread inserts (different than helicoils) from such places as McMaster Carr (mcmaster.com). They have the proper ID thread and a larger OD thread. You drill & tap the hole to the proper thread, apply some extra loctite to them and screw them into the hole and let them set up. For a 3/4-10 bolt you'd require a 90248A051 which uses a 1-8 external thread and has a length of 25/32. Package of 5 is about $13 + shipping.
On a shallow hole you are going to want to finish up with a bottoming tap so that you have full thread to the bottom of the hole unlike a plug tap that allows the last few threads to taper out, which makes starting the tap easier.
material around the current holes is going to be the big question, on whether or not there is enough to drill and tap for oversized holes.
I have an original 460 / 560 FH installation user's manual and if I recall correctly there is quiet a bit of torque on those bolts, more than the average 1/2" drive torque wrench is going to be capable of.
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 ]
Today's Featured Article - Oil Bath Air Filters - by Chris Pratt. Some of us grew up thinking that an air filter was a paper thing that allowed air to pass while trapping dirt particles of a particles of a certain size. What a surprise to open up your first old tractor's air filter case and find a can that appears to be filled with the scrap metal swept from around a machine shop metal lathe. To top that off, you have a cup with oil in it ("why would you want to lubricate your carburetor?"). On closer examination (and some reading in a AC D-14 service manual), I found out that this is a pretty ingenious method of cleaning the air in the tractor's intake tract.
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
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.
