Topic: Re: #34 carb stem
|John Deere Tractors Discussion Forum|
[Show Entire Topic] [Return to Forum]
[Show Entire Topic]
[Return to Forum]
[Add a Reply]
|PopinJohn said: (quoted from post at 19:42:25 12/08/12) I've seen some come into my carb shop with that attempt at a repair. Some have complained the the tractor didn't have its power because the area under the nozzle where the spring goes can be restricted. That area is where the fuel is drawn up during loaded operation. |
Also, if the nozzle happens to be free floating, it can drop down far enough to restrict the orifice that the load needle fits into that feeds load fuel to the chamber.
Why not repair it correctly with new threads made in a machine shop and installed correctly?
Personally, I don't like the spark plug idea because if it isn't welded on square with the bowl gasket, the result is a gasoline leak.
I guess I am asking what is the difference between using a threaded sprkplug shell, milled flat, installed onto a broken stem, milled flat, with a guide dowel inside that later gets removed, compared to "correctly with new threads made in a machine shop and installed correctly". Seems to me that the only difference is at what point you thread it. I did it before, and while it is not as simple as slapping it on there, you do have to make sure everything is square, and on my little milling machine, I can fixture it, mill it, drill a dowel guide, and thread a dowel and actually screw it together before brazing, then remove the guide dowel, all on the same fixture mount. So, I'd be interested in knowing about this "correct" method. Do they braze on a blank, then mount it on a plate to make the carburetor true to the world, then thread it? Because being cast iron, I don't see that they are welding it, as most folks can't delicately weld cast iron, nickle is too hard to machine, and I seem to be the only user of Muggy Weld rod. So do they braze a repair stem on? And is the repair stem steel or cast iron?
This post was edited by F-I-T at 06:34:31 12/09/12.
|Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a Company you can trust and have generous return policies! Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ More Info ]|
| Copyright © 1997-2013 Yesterday's Tractor Co.|
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 are interested in older tractors you've come to the right place! 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 tractor discussion forums, a 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.|