Yesterday's Tractor Co. Parts for Farm Tractors - Compare our Prices!
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 9N,2N,8N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   Traditional YT Forum ViewClassic View   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

1650 diesel oil pump pressure relief valve


 
Post new topic    
View previous topic :: View next topic  
Author Message
jacks
Regular


Joined: 05 Mar 2009
Posts: 128


Report to Moderator

PostPosted: Thu Dec 27, 2012 1:16 pm    Post subject: 1650 diesel oil pump pressure relief valve Reply to specific post Reply with quote

I want to check the oil pump pressure relief on my pump while I have the pump out. The manual calls for it to be set at 42 PSI. I figured that I would connect 42 psi air pressure to the pump body, and adjust the screw until the relief starts dumping. Has anybody done this? Any other advice on setting the pump relief valve?
 
Back to top
View user's profile
J. Schwiebert
Guest






Report to Moderator

PostPosted: Thu Dec 27, 2012 3:53 pm    Post subject: Re: 1650 diesel oil pump pressure relief valve Reply to specific post Reply with quote

Let me ask you this: What oil pressure do you have when the engine is cold? When say it has been at operating temperature say for 2-3 hours? Have you had the pump apart and measured the clearance. Are you coating the pump internally with oil are how are you sealing the pump?
 
Back to top
jacks
Regular


Joined: 05 Mar 2009
Posts: 128


Report to Moderator

PostPosted: Thu Dec 27, 2012 4:21 pm    Post subject: Re: 1650 diesel oil pump pressure relief valve Reply to specific post Reply with quote

I am replacing the main and rod bearings due to the previous owner operating the tractor with the lift pump leaking diesel into the crankcase. I had an oil analysis done which indicated excessive diesel fuel and bearing material in the oil. After replacing the lift pump, the oil stayed clean, but the pressure was too low. Oil pressure would initially be at about 40 psi in cold weather, but would decrease to only 5-7 psi at 1500 rpm with the engine hot. The relief spring in the pump measures shorter than the spec, I am trying to find a new one. I already replaced the main oil pressure relief spring on the front of the block. The gears in the pump have only .004 clearance to the body.
 
Back to top
View user's profile
J. Schwiebert
Guest






Report to Moderator

PostPosted: Fri Dec 28, 2012 9:56 am    Post subject: Re: 1650 diesel oil pump pressure relief valve Reply to specific post Reply with quote

I would rig of a leak detector and see where you are loosing the pressure. If you are close to 40 pounds cold a new spring is not going to help you much. I need to do some digging, but the oil pumps on the turbocharged engines used a different spring and that oo4 clearance I think is on the high side.How about a phone number? We can discuss it in more detail. J.
 
Back to top
Display posts from previous:   
Post new topic    Yesterday's Tractors Forum Index -> Oliver, Cletrac, Coop and Cockshutt All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
TRACTOR   PARTS TRACTOR   MANUALS
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.

YT Home  |  Forums Home

Copyright © 1997-2014 Yesterday's Tractor Co.

Powered by phpBB © 2001, 2005 phpBB Group

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