TRACTOR PARTS Allis Chalmers Case & David Brown Farmall & International Ferguson Ford & New Holland John Deere Massey Ferguson Massey Harris Minneapolis Moline Oliver & Cockshutt Kubota / Yanmar

TRACTOR MANUALS

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.

Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum

Oliver 77 flywheel bolts....please help

Welcome Guest, Log in or Register

Author

wagsw900

05-26-2007 17:54:09

Report to Moderator

Have a 1951 oliver 77. Today I was pulling the flywheel off and noticed there was only 5 bolts holding it on. It looks like there should be one more for a total of six bolts. They are a 7/16 20 by 3 inch grade 8 bolt. Could i just put a grade 5 in place of it?? Also my manual does not give a torque spec for the bolts. Any help would be great.

[Log in to Reply] [No Email]

RAB

05-27-2007 01:08:59

Report to Moderator

Re: Oliver 77 flywheel bolts....please help in reply to wagsw900, 05-26-2007 17:54:09

OK, three things.

1) It hadn"t broke with 5 so go ahead and only use 5? No? Why not? Afraid at some time it might shear and make a big mess?

2) Why were 6 grade 8s used in the first place? Why? Were they totally secure with 6 bolts, whatever happened, however quick the flywheel changed speed?

3) How much extra is a proper bolt going to cost? How much aggravation to do the job again? Would cost a complete set of bolts as well!

Do it right. You never know how many horses or rpms someone might expect from the engine and then be right naffed off with you when it comes apart at an inopportune moment. I have had one flywheel shear studs. I was not happy removing car gearbox, filing starter ring and extracting broken bolts from crankshaft just because some cheap character had put it together with mild steel bolts.

RAB

[Log in to Reply] [No Email]

Primer

05-26-2007 18:55:22

Report to Moderator

Re: Oliver 77 flywheel bolts....please help in reply to wagsw900, 05-26-2007 17:54:09

Ive got a 1950 77 just put my flywheel back on today rebuilt motor not sure on grage 5 but torque spec is 66-69 ft lbs per service manual

[Log in to Reply] [No Email]

[Options] [Printer Friendly] [Posting Help] [Return to Forum] [Log in to Reply]

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