(800) 853-2651
SHOP NOW

water geting oil

P

pablito

New User
There"s water or moister geting in the engine oil on my 1939 Allis Chalmers Model B.the oil is changing to that grayish milky color. I just changed it about a month ago and I don"t think I even have 2 hrs running time since than.why is this happening? How can I prevent this?
 
Condensation and humidity can make that happen. If it were mine I would run it for about an hour to get it well warmed up, then check coolant, oil, and go from there. Protect from rain into the muffler, and be certain of the coolant level in the next 5 to 6 hours of operation. JimN
 
jimN is right! More than likely, it's condensation, or water coming in at the muffler.I have a 52 B Allis, that was stuck, and had enough rain water in the crankcase that oil was seeping out the dipstick hole. I bought it anyway, and rebuilt the engine, 8 yrs ago. the next winter when the rains began It was again getting water in the oil. I found that the water ran down the muffler and seeped in where the muffler pipe goes into the manifold. I pulled the muffler off, and bought a exaust reducer, the small end was the right size to fit over the muffler pipe. and brazed it to my muffler pipe . When I put the muffler back in the manifold, I had a rain skirt hanging out over the manifold bore, and all these yrs I havent got any more water in the oil. Sometimes a old can just cant stop the water, if it's coming in somewhere else.
 
most likely head gasket shot. water coming in trough the muffler will cause hydrolock and or seized pistons/rings depending how long it has been sitting.
 
Don't run it if water is getting in from the cooling system. Especially if the cooling system has antifreeze in it. If it is gray, change the oil. Oil is cheaper than bearing failure.

Regards, RAB
 
It hasn't rained a lot where I live this past month,but that is a possibility. AC's were known for a lot of pourous cast iron used in the making of the blocks. Drain the oil out and see if any antifreeze falls out after it sets for a while. If you don't see antifreeze drops,it probably was rain.If you do then try a stop leak because it doesn't sound too bad yet. If that doesn't work then pull the head and check things out.
 
Don't run it unless you want to use water for your oil. Let it set over night or even longer and let the moisture seperate from the oil. Pull the drain plug and see what color the moisture is. If it looks like antifeeze or just clear water. This will help in diagnosing if you have to tear the engine down or not. Water is heavier than oil and will be at the bottom of the pan and be the first to drain out. One other good method is to drain the oil and pressurize your cooling system to see if the pressure leaks off and coolant drips out the oil pan. Sometimes a leaking head gasket will cause bubbling/to extreme bubbling in the radiator while the engine is running.
 
JimN you think a lot of shorts runs like 1 or two mintes and shuting her off, not reaching operating temp could cause condensation build up in the oil, because I park the tractor inside a shed, but it did sit out in the rain once for a few hours??
 
Your B is a wet sleeve type engine and its common for the sleeve seals/O-rings to leak and when they do its time to open them up and replace them. Drop the oil pan and then fill the cooling system and look up into the bottom of the engine to see if one or more of those seals are leaking. If they are its time to replace them. BTDT on more then one
Hobby farm
 
does it sit in a steel shed? i looked at a fordson one time that was sitting in a steel shed that thing was sweating terrible can only imagine what the inside looked like condensation is a real killer you need to run them alot or have a heated barn to stay ahead of condensate this time of year
 
Born and lived here in WI all my life. I like to push snow with my antique tractor. The "Pablito" name is an ongoing joke with some Hispanic folks I made friends with along the way but I"m just a German/Swiss white boy waiting for the 8 to 10 inches of snow we"re told is coming today. I want to go out and play in the snow. Not nice to make assumptions. :)
 
I just finished changing the oil and it smelled like gas and the oil at the bottom of the pan was like mud but I not sure the gas can acount for the oil being so gray. I'm going to dump some stop leak in just to be on the safe side of things I really don't want to be breaking the engine down in the cold weather and I need it for plowing.
 
Pablito - It seems like you are assuming you have water in the oil. When you last drained the oil - did you have any water come out when you first removed the drain plug?

In the old days (when leaded gasoline was prevalent) a grey colored oil (gas smelly) was a good indication of incomplete combustion (running way too rich on fuel/air ratio) contaminating the crankcase. Today, with unleaded gasoline, the contamination would be less grey but still be gas smelly. I would suggest you run it for a while (reach operating temp with engine), shut it down and let it set over night. Then barely open the drain plug and see if water comes out at all. If not, I think you have a fuel problem rather than a water problem.

If you do get water and it's the color of your anti-freeze in the radiator then you probably have a sleeve(s) seal(s) leaking. If the water is clear, then it's either rain (muffler?) or condensation in the crankcase. Let us know what you find. bob f.
 
You must log in or register to reply here.

Similar threads

T
Diesel Fuel in Oil
Replies
10
Views
538
wore out
wore out
Oregon Tractor Jack
Log Splitter Hydraulic Oil Life.
Replies
12
Views
1K
showcrop
showcrop
Geo-TH,In
Change the oil in my kaw mule
2
Replies
20
Views
490
Jim in LA
J
N
1952/8N side distro-Trans Oil question
Replies
9
Views
312
Tim PloughNman Daley RIP
T
W
Oil question
Replies
5
Views
428
caterpillar guy
C
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.

Copyright © 1997-2024 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

Back
Top