Welcome! Please use the navigational links on your left to explore our website.

Company Logo Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads
Tractor Parts
Salvage

Community
Discussion Forums
Project Journals
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Galleries
Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Articles
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs
Glossary

Miscellaneous
Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Kountry Life
  
Tractor Talk Discussion Forum

IH 686 question

Welcome Guest, Log in or Register
Author  [Modern View]
NC Wayne

06-10-2021 15:27:46




Report to Moderator

Got a 686 IH with steering issues. Customer said he was adding an extra 5 gallons to make it steer.

First thing I found was oil not even on the stick due to sever leaks around the lower torsion/rockshaft.

I drained all three chambers and got maybe 6 gallons out of the entire thing. The manual says capacity should be 16 gallons.

Got the leaks fixed and put in 15 gallons. The level on the dipstick is now about an inch above the full mark. The dipstick doesn't have a part number on it, but I suspect it's from a larger machine, with a deeper housing.

This one is about 15 inches from the cap to the tip. Does anyone have the right one that can tell me the length it should be?

Moving on, with enough oil now in the sump, I'm now only getting 500psi to the steering. The manual shows a divider valve and a relief valve that sends oil to the steering. Both are supposed to be in the same housing, but I see no housing that looks anything like what's pictured.

Does anyone know where the divider valve is located?

Hopefully they will attach, but here are pics of the side of the housing on this tractor, and the divider valve from the manual.

Best I can tell the line going straight up goes behind the dash to the steering, but I can't see anything that looks like that housing around there.

Does anyone know where it's located?

Any help would be greatly appreciated. I've tried several dealerships already, and they either don't have anybody that knows anything about these older tractors, or anybody that seems to give a dang if they do.

That said, any help y'all can provide would be greatly appreciated.


[Log in to Reply]   [No Email]
BarnyardEngineering

06-11-2021 07:46:46




Report to Moderator
 Re: IH 686 question in reply to NC Wayne, 06-10-2021 15:27:46  
There's nothing wrong with the dipstick. Most likely you didn't get all the old oil out and the new oil hasn't all flowed to where it needs to go yet. Run it a bit and check the level again. My bet is that it will be right on or slightly low.



[Log in to Reply]  [No Email]
NC Wayne

06-11-2021 12:59:30




Report to Moderator
 Re: IH 686 question in reply to BarnyardEngineering, 06-11-2021 07:46:46  
I drained all three housings, so the machine was empty, and I've run the machine for about 15 minutes since I filled it, and the level hasn't changed.

The dipstick is nearly as long as the housing is deep. That puts the marks so close to the bottom that a pickup tube could easily suck air, especially with no more than he actually had left in it.



[Log in to Reply]  [No Email]
DeltaSteve

06-11-2021 07:36:30




Report to Moderator
 Re: IH 686 question in reply to NC Wayne, 06-10-2021 15:27:46  
3-4 gallons over wont hurt a ting. It may even improve things. 06/56/66 tractors often run 5 gallon overfull. Improves funtions on an older worn system.Remark the stick and run with it.



[Log in to Reply]  [No Email]
Roger Tomfohrde

06-10-2021 16:52:36




Report to Moderator
 Re: IH 686 question in reply to NC Wayne, 06-10-2021 15:27:46  
The flow divider block is usually mounted at the end of the large tube that goes up from the plate you have your hoses on. Likely it is in the area under the steering in what towards the seat is the battery box. An air leak was mentioned but what does the fluid look like. If it is sucking air it should be foaming. Does the three point work? If it is likely flow diverter problems.



[Log in to Reply]  [No Email]
NC Wayne

06-10-2021 17:03:18




Report to Moderator
 Re: IH 686 question in reply to Roger Tomfohrde, 06-10-2021 16:52:36  
The fluid was low, and milky with water, but didn't appear to have foamed.

He didn't really say anything about problems with the hitch, mainly the steering.

That said,I was figuring the low fluid level was the main problem, but with the water it's not got me thinking that the metering sleeve in the divider is sticking.

I guess have to start pulling sheet metal tomorrow and see what I find.

[Log in to Reply]  [No Email]
830

06-10-2021 15:50:03




Report to Moderator
 Re: IH 686 question in reply to NC Wayne, 06-10-2021 15:27:46  
Is the pick up tube connected in the back end ? Pull the third arm mounting bracket off and you can see if it is . It will sound like its sucking air



[Log in to Reply]  [No Email]
NC Wayne

06-10-2021 16:12:44




Report to Moderator
 Re: IH 686 question in reply to 830, 06-10-2021 15:50:03  
Yes, everything in the rear appears to bee tight.

I had the top link cover, and the PTO both oot to change the bushings and seals in the lower torsion/rockshaft, and checked everything I could get my hands on while it was opened up.



[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


Today's Featured Article - Seeing an Old Friend - by Joe Evans. Dad had a concrete contracting business starting in 1960. One of his first pieces of equipment was a Ferguson TO-35 with a Davis loader. Dad replaced the TO-35 with a MF 202 Workbull, essentially an industrialized Ferguson 35 I am told. Dad bought the 202 new in 1962, and I recall quite clearly going to the dealer with him to sign for it. ... [Read Article]

Latest Ad: Looking for a Rumely Model W, X, or M. Is there anything out there?? [More Ads]

Copyright © 1997-2021 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