Yesterday's Tractor Co.
Shop Now View Cart
   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 inLog in 

JD 450 Hydraulic oil leaking into engine?

Goto page 1, 2  Next

 
Post new topic    
View previous topic :: View next topic  
Author Message
Kitch
New User


Joined: 26 Nov 2018
Posts: 15


Report to Moderator

PostPosted: Sun May 05, 2019 1:33 pm    Post subject: JD 450 Hydraulic oil leaking into engine? Reply to specific post Reply with quote

I've got a 450 c and am wondering if it is possible for the hydraulic oil to somehow leak into the engine oil? If so, what can be done to rectify the situation? TIA... Al
 
Back to top
View user's profile
JDEM
Tractor Expert


Joined: 18 Mar 2016
Posts: 2361


Report to Moderator

PostPosted: Sun May 05, 2019 2:28 pm    Post subject: Re: JD 450 Hydraulic oil leaking into engine? Reply to specific post Reply with quote

Is it a 450 or a 450C? You have both listed. Older machines before the C-series can have an engine-mounted power-steering pump that can leak into the engine oil.
 
Back to top
View user's profile
Kitch
New User


Joined: 26 Nov 2018
Posts: 15


Report to Moderator

PostPosted: Sun May 05, 2019 3:22 pm    Post subject: Re: JD 450 Hydraulic oil leaking into engine? Reply to specific post Reply with quote

It's a 450c. When I filled the hydraulic system with oil the level dropped almost immediately and the oil level in the engine increased. so, it seems a no-brainer that there must be a seal somewhere causing this. Any knowledge on this is greatly appreciated. Well, at least I just finished today the project I was working on.
 
Back to top
View user's profile
Jim.ME
Tractor Expert


Joined: 02 Mar 2018
Posts: 1552


Report to Moderator

PostPosted: Mon May 06, 2019 2:20 am    Post subject: Re: JD 450 Hydraulic oil leaking into engine? Reply to specific post Reply with quote

Unless someone has done something to connect the two, I don't see hydraulic oil getting into the engine oil. The pump is shaft driven from the crank. Hydraulic lines don't connect to the engine.
 
Back to top
View user's profile
JDEM
Tractor Expert


Joined: 18 Mar 2016
Posts: 2361


Report to Moderator

PostPosted: Mon May 06, 2019 5:45 am    Post subject: Re: JD 450 Hydraulic oil leaking into engine? Reply to specific post Reply with quote

When you say the "hydraulic system" you ARE referring to the side-tank with the sight-window, correct? Hydraulic pump for the dozer or loader is a Cessna gear pump mounted outside, in front of the engine and driven by a splined shaft. NO connection to the engine that I can think of.
 
Back to top
View user's profile
Kitch
New User


Joined: 26 Nov 2018
Posts: 15


Report to Moderator

PostPosted: Mon May 06, 2019 7:09 am    Post subject: Re: JD 450 Hydraulic oil leaking into engine? Reply to specific post Reply with quote

Yes, I filled the reservoir that houses the hydraulic oil and somehow it ends up in the crankcase. The pump is mounted to the front of the engine like you said. I was told there MIGHT be an oil cooler that also cools the hydraulic oil and maybe the problem is there, however I don't see that in my manual. Thanks for your response.
 
Back to top
View user's profile
JDEM
Tractor Expert


Joined: 18 Mar 2016
Posts: 2361


Report to Moderator

PostPosted: Mon May 06, 2019 2:55 pm    Post subject: Re: JD 450 Hydraulic oil leaking into engine? Reply to specific post Reply with quote

Oils coolers that mount on the engine are cooled by engine coolant, not engine oil. It is an engine oil cooler, not a hydraulic oil cooler.

 
Back to top
View user's profile
Roy Suomi
Tractor Expert


Joined: 14 Aug 2007
Posts: 1567


Report to Moderator

PostPosted: Tue Jun 04, 2019 3:13 pm    Post subject: Re: JD 450 Hydraulic oil leaking into engine? Reply to specific post Reply with quote

Sorry no connection between engine and hydraulics.. 2 totally different oil supplies and no pump or valve common to both.
 
Back to top
View user's profile
AJ.
Tractor Expert


Joined: 20 Oct 2007
Posts: 2037
Location: UK

Report to Moderator

PostPosted: Wed Jun 05, 2019 3:06 am    Post subject: Re: JD 450 Hydraulic oil leaking into engine? Reply to specific post Reply with quote

You sure there is no extra equipment fitted that required a an extra hydraulic pump,have a look around the engine for any pump that could be fitted,if you got the machine used the previous owner could have added an extra pump for loads of different reasons,I'd go as far as asking him if you know him.
AJ
 
Back to top
View user's profile
Jim.ME
Tractor Expert


Joined: 02 Mar 2018
Posts: 1552


Report to Moderator

PostPosted: Wed Jun 05, 2019 4:05 am    Post subject: Re: JD 450 Hydraulic oil leaking into engine? Reply to specific post Reply with quote

Its been a month since Kitch started this post and we haven't heard any more from him. One has to wonder what he found and if we all missed a connection between the hydraulic and engine oils. We don't know how much hydraulic oil he added and how much the engine oil went up. Could it be hydraulic oil is leaking out somewhere and the engine oil went up do to a failed umbrella seal putting fuel into the engine oil?

As I understand it 450s and early 450Bs used the engine mounted pump, with a separate reservoir from the main hydraulic reservoir, for power steering. Later 450Bs used engine mounted pump, without the separate reservoir. I believe those were tied into the transmission hydraulic system. The 450Cs, and after, used transmission oil pressure to supply the steering. So it would appear to me a none had a connection between the main hydraulic system and engine. It would seem that would leave only the option of someone plumbed something wrong for a 450C, or the others, to pass hydraulic oil into the engine.

Just my thoughts.
 
Back to top
View user's profile
AJ.
Tractor Expert


Joined: 20 Oct 2007
Posts: 2037
Location: UK

Report to Moderator

PostPosted: Thu Jun 06, 2019 3:57 pm    Post subject: Re: JD 450 Hydraulic oil leaking into engine? Reply to specific post Reply with quote

As said he must have solved the problem by now,in the back of my mind I think there was a hydraulic pump fitted to power a winch that was fed from the main tank but I can't remember the exact model,if you solved the issue come back and let us know what you found.
AJ
 
Back to top
View user's profile
Jim.ME
Tractor Expert


Joined: 02 Mar 2018
Posts: 1552


Report to Moderator

PostPosted: Fri Jun 07, 2019 3:06 am    Post subject: Re: JD 450 Hydraulic oil leaking into engine? Reply to specific post Reply with quote


Hi AJ.,

I don't know of a JD winch set up that way, not to say there couldn't be such. The 3325 winches JD supplied for those had a pump internal to the winch which used the oil in the winch housing as a reservoir for operation of the clutch and brake. No fluid connection to the engine or hydraulic system, winch hydraulics are integral to the winches. Just saying what I've seen on them.

It would be nice to know what he found for future reference.

Jim
 
Back to top
View user's profile
Kitch
New User


Joined: 26 Nov 2018
Posts: 15


Report to Moderator

PostPosted: Fri Jun 07, 2019 9:58 am    Post subject: Re: JD 450 Hydraulic oil leaking into engine? Reply to specific post Reply with quote

Winch not a problem. Thanks for your interest... more later
 
Back to top
View user's profile
Kitch
New User


Joined: 26 Nov 2018
Posts: 15


Report to Moderator

PostPosted: Fri Jun 07, 2019 10:11 am    Post subject: Re: JD 450 Hydraulic oil leaking into engine? Reply to specific post Reply with quote

The problem hasn't been exactly solved. Like everyone thinks, there is NO connection between the hydraulic system and the engine. But, there
must be on my JD. I've dealt with it this way; I drained the engine oil to discover it was two quarts high... changed the oil (duh) and left
the hydraulic oil unchanged even though the viewing window to the hydraulic reservoir showed low oil content. Because the problem only
happened after adding 4 qts to the system to bring the level up to where it 'should' be, I decided to run it as is and see what happened.
Well, the hydraulic system works perfectly (6 way blade only) and the engine oil has remained as it should without H oil filtering into it. I
don't how this happened but it's working as it always did before 'filling' the H reservoir. Go figure??? P.S. I'm keeping a close eye on it.
 
Back to top
View user's profile
Kitch
New User


Joined: 26 Nov 2018
Posts: 15


Report to Moderator

PostPosted: Fri Jun 07, 2019 10:14 am    Post subject: Re: JD 450 Hydraulic oil leaking into engine? Reply to specific post Reply with quote

Thanks Jim... see my comments on the
'solution'.
 
Back to top
View user's profile
:   
Post new topic    Yesterday's Tractors Forum Index -> Crawlers, Dozers, Loaders and Backhoes All times are GMT - 8 Hours
Goto page 1, 2  Next
Page 1 of 2

 
Jump to:  

TRACTOR PARTS TRACTOR MANUALS
Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). We have the parts you need to repair your tractor - the right parts. Our fast shipping, low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

YT Home  |  Forums

Modern View Forum 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