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.

John Deere Tractors Discussion Forum
:

Leaky injectors

Welcome Guest, Log in or Register
Author 
6030tom

08-11-2005 20:01:26




Report to Moderator

Cylinders 2,4,and 6 are all leaking and bubbling where they tighten down into the head. I have the correct injector wrench/socket - whatever it is - is there anyway to tighten them down with out removing the high pressure lines and the return line? They are the "Y" type injectors.
Thanks for any help.




[Log in to Reply]   [No Email]
G/MAN

08-12-2005 16:15:12




Report to Moderator
 Re: Leaky injectors in reply to 6030tom, 08-11-2005 20:01:26  
It sounds like the nozzle bodies themselves may be leaking where they screw together below the nut holding them in the bores. Are these new, rebuilt or used nozzles? If they're leaking down there, they may be filling up that bore with fuel, which then pushes out around the threads of the retention nuts or between the nuts and nozzle bodies. Tightening the nozzles down tighter is not likely to cure this problem, and may in fact make it worse or lead to nozzle damage. Those nuts are only to be torqued to 55 lb.-ft. or so. I'd be all for pulling the nozzles. Clean them up well and use a nozzle tester (usually referred to as a pop-tester) to bring the internal pressure up to just a few hundred PSI below opening pressure and hold them there. You should be able to see where they're leaking fairly easily. And if you're dealing with old used units, you're also more than likely going to see low opening pressures, there maybe be a poor spray patter, and tip leakage is also a possibility. Left unchecked, the leaks are likely to get worse, and your tractor will thank you for the fuel-system attention with improved performance, power and fuel-economy. And a much cleaner engine.

[Log in to Reply]  [No Email]
msb

08-12-2005 07:49:36




Report to Moderator
 Re: Leaky injectors in reply to 6030tom, 08-11-2005 20:01:26  
The question is where are they leaking? Where the nozzles meet the head or is it the nozzles themselves.I would pull them out and have a look at the gasket on the bottom of the nozzles.If you see any carbon where the gaskets have leaked then clean the bores out real good and install new copper gaskets.Otherwise I would have the nozzles checked out by a good repair shop.Since you have the correct wrench,pulling the nozzles is not that big of a deal.I have an old milker inflation brush with the tip cut off that works real well to clean the bores with.

[Log in to Reply]  [No Email]
Bob

08-12-2005 08:38:25




Report to Moderator
 Re: Leaky injectors in reply to msb, 08-12-2005 07:49:36  
Also, make sure there's only ONE copper gasket down there!



[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