It makes no difference if you ruined the shaft seals or not when you installed the pump. That has nothing to do with the pump running the engine or not. It will run fine with no seals, but the engine crankcase will quickly fill up with diesel fuel.
I don't understand the fuel pressure gauge nor the reading you're getting. That pump is actually two pumps in one housing. The low pressure pump runs from zero up to around 60 PSI, depending on RPMs - for most models with a spee and/or load advance. It has to change with speed since it runs the timing advance mechanism. That is the low pressure pump. It also cannot have high pressure fuel being fed to it since that will screw up the advance. Zero pressure being fed to it is fine as long as fuel flow is available. The other pump is the high pressure side the sends fuels through the injectors at pressures over 1000 PSI, sometimes over 3000 PSI.
You say you rebuilt the pump - so I ask, what exactly did you do? Even a certified Standyne/Roosamaster pump shop does not really "rebuild" those pumps. It's not cost effective. They just pull them apart, replace a few small parts, reuse as-is the major parts, and reseal and calibrate - that's all. $50 in parts, two hours labor, and often a $600 repair price.
I worked in three pump shops and can probably tell you what you need to know. But, it's a waste of time unless you specify exactly what you have already done - or haven't done.
The pump is not all that complicated. Little rotary vane pump in the back that feeds low pressure fuel through a metering valve - and then on to a cylinder with two little round pump plungers. They are forced in and out by riding on cam lobes as the engine spins. When they move, they pump high pressure fuel through a common delivery valve, then though a fuel distributor that decides which cylinder gets that fuel charge.
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 - Bad Vibes - by Curtis Von Fange. One of the strangest ways to communicate with our tractor is to ask it how it feels. "Ask it how it feels," you say? Yup, ask it how it feels. Now, as with the other articles in this series one has to be able to hear what 'ole blue' is trying to say in response. The nice thing about our old iron friends is that they are usually quite consistent in their response, rather unlike some people I know who might change what they say due to the weather or other mitigating circumstances. But since t
... [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.
