Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Minneapolis Moline Tractors Discussion Forum
:

diesel mechanics help

Welcome Guest, Log in or Register
Author 
gary

12-30-2003 05:42:05




Report to Moderator

not sure if this is a good place to ask this, but here it goes. i have a roosamaster diesel pump on a pickup that pumps very little fuel. the engine will not run. i installed an electric fuel pump and am getting fuel (a good supply) to the pump, but very very little coming out. does anyone know of a good website that shows the break down of these pumps, or have any advice?? thanks.




[Log in to Reply]   [No Email]
gary

01-05-2004 06:28:46




Report to Moderator
 Re: diesel mechanics help in reply to gary, 12-30-2003 05:42:05  
Hi guys, thanks for all the ideas. i took the pump off and tore it down. cant say that i see anything as being a problem. nothing stuck, nothing wore out, but i did see some stress cracks in the case. prescreen was clean, all bores were clean, transfer pump looked good, seals looked good, it's confusing. since i went to the local tech college for diesel tech one would think i should know this, but that was 20 yrs ago and it's been 10 since i had a pump apart, but i am going to go back to the college and use the test stands and see what happens. thanks again for all the suggestions, i will check some of the items again just to be sure.

[Log in to Reply]  [No Email]
Runner, Al.

12-31-2003 20:21:36




Report to Moderator
 Re: diesel mechanics help in reply to gary, 12-30-2003 05:42:05  
Check the return line. If it is stopped up, it will not run. Good Luck David



[Log in to Reply]  [No Email]
Bob

12-31-2003 16:50:48




Report to Moderator
 Re: diesel mechanics help in reply to gary, 12-30-2003 05:42:05  
Has the unit been sitting unused for a while?

If so, often the pump pistons get stuck in their bores and don't move outward to take on fuel, so no injection occurs. It is a relatively simple matter to take the pump apart, and free them, and about a $30.00 seal kit to put it back together. It's the $300.00 to $400.00 labor at the pump shop that really hurts!

Do you have any fuel delivery to the injectors, or is the fuel flow you're referring to coming out the return fitting at the top? Is your electric shut-down solenoid working?

[Log in to Reply]  [No Email]
galenv

12-31-2003 14:50:57




Report to Moderator
 Re: diesel mechanics help in reply to gary, 12-30-2003 05:42:05  
Don't know how mechanical you are but roosa or any fuel pump can be a pain need special tools to install seals and such, that said. You can have several problems plugged screen oninlet, stuck metering valve(canusually start just won't gain rpms) plugged fuel return can be problem usually runs a while then dies, veins on transfer pump worn not pumping into main pump makes them real tuu to start. The list can go on I suggest you pull the pump and have it redone depending onmiles and age it's just a matter off time anyway

[Log in to Reply]  [No Email]
george md

12-30-2003 15:40:23




Report to Moderator
 Re: diesel mechanics help in reply to gary, 12-30-2003 05:42:05  
Gary,

Sounds like the housing pressure regulator
is plugged up. It is the black fitting in the return
line that is screwed into the pump housing. remove
it and look thru it at a bright lite, see if there
are any shadows around the opaque glass ball . If
there are it is plugged and that means the governor
drive ring is failing and it needs a kit .

george



[Log in to Reply]  [No Email]
Larry from MD

12-30-2003 14:09:28




Report to Moderator
 Re: diesel mechanics help in reply to gary, 12-30-2003 05:42:05  
There is a safty screen in the pump,its right below where the fuel goes in.You can remove the plug on the bottem and see if fuel or crud comes out.The screen and the fitting is very thin and its easy to break it.If you clean it try to suck out the stuff throught the hole where the fitting is.If you lift the screen the crud goes in to the pump.If fuel still wont go in the pump, most likly you need to take it to a pump repair place.

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

Hop to:


TRACTOR PARTS TRACTOR MANUALS
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 © 1997-2023 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