Step-by-Step Carburetor Overhaul
1952 Ford 8N
by Don Stewart
Previous Page
|
Next Page
|
|
Once the float needle is out, use a large, wide straight slot screwdriver to
remove the float seat. This can be kinda tricky since the screwdriver bearing
surface is so very small. Secure the upper body carefully in a soft-jaw vice for
firm support and apply constant level pressure to the screwdriver to keep the
blade from slipping. The seat is brass and is soft, but the threads will give in
before the screwdrive slot gives way, as long as the screwdrive doesn't slip. |
 |
 |
Next to the float seat is the idle jet seat. This is the jet into which the
idle screw/needle fits when the carburetor is running on your tractor. Removing
this tiny jet is also tricky since its bearing surface is even smaller than the
float seat. Use the widest straightslot screwdriver that will fit the casting
hole and fit into the idle jet slot. Same as before, keep the screwdrive from
slipping and the jet will come out. |
|
While it is a lot of work to get these parts out with destroying them, it is
crucial to the rebuild that the boilout chemical be able to get into the
passages behind these seats.
The rebuild kit provides you with a new float needle and seat, but not a new
idle jet. If you damage the jet (ie. the seat is all galled such that the idle
screw/needle won't fit into it) you will have to purchase a replacement.
Annoying, but not expensive. An you will have learned why the screwdriver
shouldn't be allowed to slip. |
 |
 |
Assuming that your rebuild kit has the replacements, discard the old float
needle, seat and gasket, and the old steel float retaining pin. Retain the idle
jet (seat) and the float, and, of course, the upper carburetor body.
Purchase a sealed gallon of carburetor parts cleaner from your local
automotive parts store. AutoZone/Checker/PepBoys/Kragen ... sell these one
gallon cans, including a small parts basket inside for around $12-$15. Make sure
it comes with a parts basket inside, you don't want to be getting this stuff on
your fingers.
When working with carburetor cleaner use appropriate safety glasses and
gloves. This stuff is caustic and if you get a few drops under you ring against
your finger, it will burn until you can flush it with water. |
|
Drop the upper carburetor body, idle jet (seat), the power mixyure
screw/spring and idle mixture screw/spring into the parts basket and lower it
into the cleaner. Make sure it is completely covered. Watch out for splashes!
While the upper body is in the soup, let's work on the lower body.
On the bottom of the lower body are, variously, one or two plugs. One (the
float bowl plug) takes a wrench to remove, the other (power circuit plug) takes
a straightslot screwdriver. Again select the largest scredriver that will fit
the slot in the plug and don't let the screwdriver slip. |
 |
Previous Page |
Next Page |
[Comment On This Article] - [View Other Comments]
|
Discount Prices for Parts! You can help support this extensive website by purchasing your tractor parts, manuals and merchandise from our [ Antique Tractor Store ] or call our friendly sales staff toll free (800) 853-2651. [ More Info ]
|
Home
| Manuals
| Parts
| 12-Volt Kits
| Carburetors
| Radiators
| Engine Kits
| Videos
| Books
Copyright © 1997-2008 Yesterday's Tractor Co. - A Washington State Corporation
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
|
|
About this site - Yesterday's Tractors is your one-stop source for antique tractors. If you use antique tractors, collect antique tractors, or just enjoy looking at antique tractors, welcome to our site! Join more than 275,000 other classic tractor enthusiasts from all over the globe. We have many resources for antique tractor enthusiasts available including photos, classified ads, more than 24 antique tractor forums, show guide, values, specs and much more. Bookmark this site and come back often. Thanks for stopping by! Feel free to use our feedback form to send us your comments, suggestions and ideas.
|
|