Yesterday's Tractor Co. We Have the Tractor Parts You Need
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Tractor Manuals
Tractor Parts
Classified Ads
Photo Ads

Community
Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Galleries
Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Articles
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs
Glossary

Miscellaneous
Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
TractorLinks.com
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
Enter your email address to receive our newsletter!

subscribe
unsubscribe
  
Ford 9N, 2N & 8N Discussion Forum
Show Parts for Model:

8N Ford Oil Pressure

Author  [Modern View]
Jim R

03-19-2013 13:52:34
152.132.9.197



Report to Moderator

I recently bought a 1948 Ford 8N Tractor, my first old Ford Tractor. It is believed to have a fresh engine overhaul from a previous owner but not exactly sure what was done. I changed the oil and put in Rotella T 15W40 which I use in all my tractors. It seems like it takes a long time for the oil pressure to come up after starting it cold, especially in colder weather. Sometimes it may take as long as 15 seconds or so for the oil pressure to come up. Should I be using a lighter weight oil, or is this a common thing among 8N's. Thanks for any advise!

[Reply]   [No Email]
Bob Purinton

03-19-2013 19:50:48
184.9.177.82



Report to Moderator
 Re: 8N Ford Oil Pressure in reply to Jim R, 03-19-2013 13:52:34  
My '48 also uses Shell Rotella 15W-40. I don't know it's history but it's a strong runner.
When I first start it my gauge comes up almost immediately. In the winter it'll max out at about 35 lbs. of oil pressure. Fully warmed up it'll show 12-15 at idle.



[Reply]  [No Email]
Jim R

03-19-2013 15:12:10
152.132.9.197



Report to Moderator
 Re: 8N Ford Oil Pressure in reply to Jim R, 03-19-2013 13:52:34  
Thanks so much for all the advise! I will check the gauge and think I will try using 10W-30 oil and see how that does.



[Reply]  [No Email]
Colin King

03-19-2013 15:09:45
71.49.81.17



Report to Moderator
 Re: 8N Ford Oil Pressure in reply to Jim R, 03-19-2013 13:52:34  
I also feel that it is not unusual for a slight delay of a few seconds before seeing oil pressure on the pressure gauge. Both my 2N and 8N have a couple of seconds delay.

But 15 seconds does seem like a little too long. Are you sure that it takes that long? Sitting on the seat watching that gauge can seem like an eternity.

You may want to consider using the lower viscosity oil during winter time, as TOH suggests. I also use Rotella 15W40 in my tractors, but they don't see much winter use. I would use 10W30 if they did, and put the heavier weight oil in during their spring servicing.

Colin, MN

[Reply]  [No Email]
soundguy

03-19-2013 15:08:43
184.240.35.170



Report to Moderator
 Re: 8N Ford Oil Pressure in reply to Jim R, 03-19-2013 13:52:34  
first thing I'd do is swap in a new gauge...

post back



[Reply]  [No Email]
old

03-19-2013 14:15:35
209.86.226.32



Report to Moderator
 Re: 8N Ford Oil Pressure in reply to Jim R, 03-19-2013 13:52:34  
Not all that uncommon for an oil pressure gauge to start reading pressure that slow. Bet if you pulled the oil line hook up on the side of the engine you would find you have oil there a lot faster then that 15 seconds. Yes a thinner oil like say a 10W30 would maybe come up faster but again it takes time to have a gauge start reading and depending on the gauge maybe slow or very slow



[Reply]  [No Email]
TheOldHokie

03-19-2013 14:09:58
71.176.179.17



Report to Moderator
 Re: 8N Ford Oil Pressure in reply to Jim R, 03-19-2013 13:52:34  

Jim R said: (quoted from post at 16:52:34 03/19/13) I recently bought a 1948 Ford 8N Tractor, my first old Ford Tractor. It is believed to have a fresh engine overhaul from a previous owner but not exactly sure what was done. I changed the oil and put in Rotella T 15W40 which I use in all my tractors. It seems like it takes a long time for the oil pressure to come up after starting it cold, especially in colder weather. Sometimes it may take as long as 15 seconds or so for the oil pressure to come up. Should I be using a lighter weight oil, or is this a common thing among 8N's. Thanks for any advise!


The flat head oil pump is not the strongest performer in the world but you should get a solid oil pressure indication almost immediately once the engine starts runniing. Even just cranking with the starter motor should move the needle. You have an issue and unless the temperature where you live is well below freezing it's not likely the 15W40 grade oil is your problem. Personally I prefer 10W30 for general year round use and you can try that just to see what if any difference it produces.

I always cringe when I hear somebody with a tractor for sale say "the engine was just overhauled". To me all that means is it wasn't working right and somebody tried to fix it. Maybe they knew what they were doing and maybe not.In your case it sounds like "not". In any event the first thing to do is determine if the oil pressure is really that slow to build or if the gauge is faulty.

You'll probably get at least one dissenting opinion but IMO any engine that runs for 15 seconds after start-up without oil pressure is rapidly digging it's own grave.

TOH
This post was edited by TheOldHokie at 14:14:51 03/19/13 2 times.

[Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Add a Reply]

Hop 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. [ More Info ]

Home  |  Forums


Copyright © 1997-2014 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