Yeah that pressure part is kinda worrisome. If it builds some pressure then the gears probably are okay and most likely one of the pressure reliefs is sticking open. They look and operate much like a needle valve in a carb float bowl (only with a stiff spring to close them) and are a snug fit. A little water causes them to rust slightly and the spring wont close them after the initial opening. Usually the one in the bottom part of the primary pump is the culprit, the one in the top of the plunger body, not so much.
Also, these machines will run at light slow loads without much pressure from the primary, but I've never tested them to see how low.
Also, priming these things is way over rated. I have yet to find one that will not run up and clean itself out is a short time. That gas cycle is very effective.
To check the rack, pull the filler neck. Just two little bolts, but be careful of crud around the base. Work the throttle and look for and look for anything NOT moving. The rack gear slides horizontally, front to rear. It is usually easiest to pull the pin on the double spring thingy that moves the arm on the pump.
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 ]
Today's Featured Article - A Question for Dads This recent topic from the Tractor Talk discussion board is being highlighted because it is an awesome display of the caliber of individuals that have made this site their own. The young person asking questions received positive feedback and advice from total strangers who "told it like it is" with the care many reserve for their own kids. The advice is timeless... so although it isn't necessarily antique tractor related, it will be prominently displayed in our archives to honor those who have the courage to ask and those who have the courage to respond in an honest, positive manner.
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
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.
