Oil in coolant 7000
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=191929
Printed Date: 18 Jul 2025 at 11:45pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Oil in coolant 7000
Posted By: captaindana
Subject: Oil in coolant 7000
Date Posted: 22 Nov 2022 at 4:43am
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On our new to us last year Allis 7000 I installed a new valve cover gasket and indeed found shaving cream. The coolant I had changed as per Dr Allis’ recommendation and after 30 hours on the Tedder this past haying season I had small drips here and there of oil in coolant. What do I have going on here? Motor does not use oil nor coolant. Thanks. Dana ------------- Blue Skies and Tail Winds Dana |
Replies:
Posted By: DrAllis
Date Posted: 22 Nov 2022 at 6:22am
| Small black oil drops in the coolant (on a tractor you don't know the history of) may be from sleeve Oring failure previously. It is very hard to get every last drop out of the cooling system and the oil always floats to the top. Be checking the oil fill cap for shaving cream. If the tractor has sat for some time on the level, loosen the oil drain plug to the last thread and carefully let out a small amount of oil. If there is any coolant getting in the oil, it will be right there. ANY drips of moisture coming from the breather hose need to be tasted !! If the drops are sweet...it is antifreeze !!!!! |
Posted By: captaindana
Date Posted: 23 Nov 2022 at 4:25am
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Thanks Doc! I changed oil and filter last fall when she was delivered here and then after 30 hours of tedding with a spanking new Paquea 6 star Tedder. I always pull an engine oil drain plug as the way you just said and I never saw any coolant. Today I will do that again and report back. The engine had a leaky valve cover gasket s why I replaced and saw the massive amounts of shaving cream. The thermostat apparently hadn’t worked forever either so I replaced it, gasket and all new wiring to a new coolant temp gauge. Now she runs at 190-200*, before that she ran cold and that’s why I figured was making shaving cream. She has considerable blow by also so I’ll taste that too. I figured she needs new rings. As a tedding tractor with ice cold air I can’t see a complete overhaul…she’s otherwise a beautiful ride! Dana ------------- Blue Skies and Tail Winds Dana |
Posted By: captaindana
Date Posted: 23 Nov 2022 at 4:42am
 ------------- Blue Skies and Tail Winds Dana |
Posted By: SteveM C/IL
Date Posted: 23 Nov 2022 at 9:44am
| I'll just add that whatever it needs to make it right is worth doing.....keep an eye on it to see if it gets better. Next step would be drop pan and pressurize system for several hours (overnight) and look for leaks down liners etc. |
Posted By: captaindana
Date Posted: 23 Nov 2022 at 12:11pm
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So I bled the oil drain ever so slowly there is no antifreeze in the oil and I looked in the Radiator real well with the light and there’s just a very very little bit of oily film on top , hardly any….way less than when I changed it a few months ago. SO AS USUAL I believe our good Doctor guessed correctly! The man is phenomenal! ------------- Blue Skies and Tail Winds Dana |
Posted By: SteveM C/IL
Date Posted: 23 Nov 2022 at 2:26pm
| My F2 combine had an oring fail at the filter/cooler aperatus right before I got it. Was fixed but had plenty oil on top of water in neck whenever checked. Never could get rid of it....finally dropped a/freeze and ran with water and dawn dish soap then some rinsing. Been good ever since. Decided one day that the oil probably wasn't doing rubber hoses any good. Best of luck Cap'n. |
Posted By: Lynn Marshall
Date Posted: 23 Nov 2022 at 8:29pm
| Coolant in the oil can cause an excessive amount of steam to come out the breather hose as the engine warms up. It may appear to be blow-by from worn out rings,but it is the water vaporizing under the valve cover. If the engine starts decently, has the power it should, and doesn't use a lot of oil, I'm not sure rings or an overhaul is needed. I would certainly be watching the oil and Coolant levels carefully. Coolant in the oil and spun rod bearings go together. |
Posted By: captaindana
Date Posted: 24 Nov 2022 at 5:03am
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Thanks to all…I’ll be tasting the valve cover vent hose for sweetness. Wouldn’t needing rings make more pressure exiting the vent hose than simply water turning to steam? Maybe she needs rings And Has a leaky o ring. I don’t think I added much coolant in those 30 hours but with all that shaving cream I’m beginning to think maybe that’s the problem. No coolant came out of the oil drain yesterday and she’s sat level in the shed since mid Sept. Could it only leak when running? I think it’s time to drop pan and pressurize as Steve said. Happy thanksgiving to all! Dana ------------- Blue Skies and Tail Winds Dana |
Posted By: DrAllis
Date Posted: 24 Nov 2022 at 5:38am
| A healthy engine would require zero coolant to be added in 30 or even 300 hours. |
Posted By: Lynn Marshall
Date Posted: 24 Nov 2022 at 9:52am
| Adding on to the Dr.s post. Healthy engines also shouldn't have a lot of crankcase blow-by or use much oil. Most engines that I have taken apart for sleeve seals leaking had pitting or cavitation issues on the sleeves or block. It didn't make much sense to just ring those engines. |
Posted By: AC7060IL
Date Posted: 25 Nov 2022 at 11:48am
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Captain Dana, good job loading photo of your fine looking 7000. Sorry to hear of It’s 301 quandaries. But glad to hear that you’re pressure testing it. Hope you don’t find any noticeable issues there. Got me to wondering ~ What engine oil are you running in it? Single or multiple viscosity? Synthetic or non-synthetic? Especially on older antique vehicles & equipment (1960-80s), I’ve noticed a few new engine oil leaks when transitioning from single viscosity (30w) to multiple viscosity(15w-40). And,, it seems that synthetic engine oil develops even more new oil leaks? Have you tried using just a straight 30w in it? |
Posted By: captaindana
Date Posted: 25 Nov 2022 at 6:15pm
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Howdy 7060 where the heck u been lol. My whole fleet gets wolfs head or rotella semi synthetic hd 15 40 diesel oil. None ever get near 50 hours before their yearly oil n filter changes. And they have all gotten ALL oils and filters changed throughout their chassis. And all have new heavy duty coolant as per Dr Allis’ recommendations! But this one is a newbie and I’m working out her issues. The 7020 arrived 2 weeks after the 7000 and honest to God she’s perfect! I hope to resolve issues before next spring! Thanks for all y’all’s help! ------------- Blue Skies and Tail Winds Dana |
Posted By: captaindana
Date Posted: 25 Nov 2022 at 6:28pm
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Posted By: Dennis J OPKs
Date Posted: 25 Nov 2022 at 7:14pm
| Captain, so they still have oil under the Wolfs Head Brand? I guess it may be an eastern think but tests my memory. Some 6 decades ago I purchased my first new car which was a Chevy from a dealer in Omaha. At that time the dealer used Wolf's Head oil in their service dept. Wolf's Head provided some sort of extended drive train warranty if you used their product. I don't recall the numbers, but it was far & above what the factory warranty was. Some brand names do survive. Nice fleet of orange by the way. Dennis |
Posted By: captaindana
Date Posted: 26 Nov 2022 at 11:03am
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Oh yes wolfs head sold in our local auto parts store and from my local Amish owned lumber hardware store. ------------- Blue Skies and Tail Winds Dana |
Posted By: captaindana
Date Posted: 26 Nov 2022 at 11:17am
 The ‘40. ------------- Blue Skies and Tail Winds Dana |
Posted By: captaindana
Date Posted: 26 Nov 2022 at 11:23am
 Ok I figured out pics lol. I’m done now😁 ------------- Blue Skies and Tail Winds Dana |
Posted By: AC7060IL
Date Posted: 26 Nov 2022 at 11:41am
Never doubted for a minute, your excellent tractor oil service schedules. And there you go again,,,,uploading 2 more photos of another beautiful AC 7020, then an awesome 7040, & then guessing your whole AC fleet!! Excellent job! Always a pleasure catching up with you dear friend. Happy Thanksgiving to you & yours... |
captaindana wrote:Posted By: Mikez
Date Posted: 26 Nov 2022 at 1:44pm
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Wow nice to to you 7000s line up. I’ll have to come visit and see if my seat lift will fit through 7000s doors in case we ever buy one. Goodluck with oil and coolant. And happy thanksgiving
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Posted By: captaindana
Date Posted: 26 Nov 2022 at 7:05pm
  ------------- Blue Skies and Tail Winds Dana |
Posted By: captaindana
Date Posted: 26 Nov 2022 at 7:10pm
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Mikez call and come up anytime! ------------- Blue Skies and Tail Winds Dana |
Posted By: captaindana
Date Posted: 26 Nov 2022 at 7:20pm
 Some hundreds ------------- Blue Skies and Tail Winds Dana |
Posted By: DanWi
Date Posted: 26 Nov 2022 at 8:45pm
| Santa going to bring you a few more of the 7000"s to finish the set? What do you need yet? 7010. 7045. 7060 and 7080. Then it's off to the 8000's there's only 4 of them., unless you go 2- and 4-wheel drive. Nice collection keep up the good work. |
Posted By: captaindana
Date Posted: 30 Nov 2022 at 5:11am
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Lol believe I have enough for now. I am the maintenance guy and for now…no more! ------------- Blue Skies and Tail Winds Dana |