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
Classified Ads
Photo Ads
Tractor Parts

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

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

Research & Info
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

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
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
Ford Tractors Discussion Forum
Order Ford 861 Parts Online

1957 861 Carb tuning issue

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

10-14-2019 14:48:42

Report to Moderator

The TSX-? carburetor I just rebuilt for my '57 861 does not have an idle speed adjustment screw. In the adjustment section it tells me to set it. WTH. Also my new seat and needle appear to be leaking because fuel came from the carb when I removed the air cleaner tube. I have rebuilt many carbs and thought this one would be cake. I must have messed up somewhere... (I think its a TSX-662 if I remember correctly. Brass plate was still on it)
Polymerjohn in OK

[Log in to Reply]   [No Email]

10-18-2019 09:46:19

Report to Moderator
 Re: 1957 861 Carb tuning issue in reply to polymerjohn, 10-14-2019 14:48:42  
Quoting Removed, click Modern View to see

That rod has no association with the alternator other than being on the same tractor. It is the connection between your throttle lever and the governor. The throttle lever sets the governor and the governor sets the throttle plate in the carb.

[Log in to Reply]  [No Email]

10-17-2019 02:18:42

Report to Moderator
 Re: 1957 861 Carb tuning issue in reply to polymerjohn, 10-14-2019 14:48:42  
There's a sintered bronze plug at the bottom of the carb that's supposed to let fuel drain out if you flood it. Mine is plugged, and I suspect yours is too.

[Log in to Reply]  [No Email]

10-15-2019 15:56:59

Report to Moderator
 Re: 1957 861 Carb tuning issue in reply to polymerjohn, 10-14-2019 14:48:42  
The idle stop/idle speed adjustment screw is on the back side on
the linkage. Circled here with the spring on it.

Main adjustment is the brass T-handle shown here on the bottom.

[Log in to Reply]  [No Email]

10-15-2019 15:20:28

Report to Moderator
 Re: 1957 861 Carb tuning issue in reply to polymerjohn, 10-14-2019 14:48:42  
Set the main jet, "power jet" as you call it, at 2.5 turns out and forget it unless you are going to enter a pulling competition. Set the throttle at 500 RPMs and adjust the low speed for highest RPMs. If you were recently trying to start it with the choke closed and it didn't start in 5 seconds you should have gas sitting in the inlet.

[Log in to Reply]  [No Email]

10-18-2019 09:20:22

Report to Moderator
 Re: 1957 861 Carb tuning issue in reply to showcrop, 10-15-2019 15:20:28  
Question: Does it make sense to tune the engine, at least the idle setting, without the linkage connected. Then make the adjustment to the linkage that connect it to the carb linkage ball. If I connect my linkage now the way it is set, the linkage will hold the throttle plate off the stop, not good. Logic tells me to adjust the carb to run properly, then adjust the linkage to properly connect to the carburetor "ball".

What does the linkage in front of the carburetor do? It has some association with the alternator. Is it a governor of some type?

Polymerjohn in OK

[Log in to Reply]  [No Email]

10-14-2019 16:24:41

Report to Moderator
 Re: 1957 861 Carb tuning issue in reply to polymerjohn, 10-14-2019 14:48:42  
It should have an idle adjustment screw, but that just sets idle speed.

There is also an idle air adjustment. Important for low speed operation.

The new needles and seats can be temperamental, but it may

be just using a bit too much choke when trying to start if the gas

was found after trying to start it.

If not, make sure the gasket is under the seat, the surfaces are
clean and that the seat is in tight so it doesn't leak by under it.

[Log in to Reply]  [No Email]

10-15-2019 12:19:10

Report to Moderator
 Re: 1957 861 Carb tuning issue in reply to Royse, 10-14-2019 16:24:41  
Thanks for the input/feedback. I think I figured it out. All the different iterations of carbs out there are killing me. Below is a picture of the manuals and how they do not show my carburetor. The bottom left picture is what I think is the correct approach to my carb adjustments (picture of my carb). I just hope I can get the fuel tank flow to stop into the bowl without tearing it apart again. This carb has the Power Adjustment Needle in a different place than most. What I thought is the Power Adjustment Needle, is actually the Idle Adjustment Needle. Any help on tuning method would be helpful. I am going to start with page 101 in the service manual and go from there.

[Log in to Reply]  [No Email]

10-16-2019 06:10:43

Report to Moderator
 Re: 1957 861 Carb tuning issue in reply to polymerjohn, 10-15-2019 12:19:10  
Thank you everybody for the help. I moved away from my neighbor of 30 years that knew everything there was to know about tractors old and new. I miss you Roy. But thanks to the forum for posting some help.

John in OK

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:

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 © 1997-2020 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