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Harry Ferguson Tractors Discussion Forum
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OIL in radiator

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Gene in La

10-14-2007 21:53:35




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I couldn't getting my TO20 to start Saturday after bushhogging several hours Friday and she finely bogged down and quit! (field very thick with tall grass)! Saturday she wouldnt crank! I just happened to check all fluid levels and found major amounts of oil in radiator but none in oil; My first thought was "head gasket"! Am I on corect tract or not! Ya'lls thought!!! Gene in LA! THANKS




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Bob (Aust)

10-16-2007 02:51:52




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 Re: OIL in radiator in reply to Gene in La, 10-14-2007 21:53:35  
I don't know the Continental engine at all, but a bit of thinking suggests head gasket is the probable culprit, especially if there is no water in the oil.
Your oil pressure should be 20 to 30 psi, water pressure around 11 to 14 psi. I assume lubrication to the valve rocker gear passes through the head gasket, probably not far from a coolant gallery.
I'm guessing a head gasket by pass from oil gallery to coolant gallery? If the block were cracked, I suspect the transfer may be the other way on shut down - water into the oil due to residual coolant pressure.

Just thinking - I certainly am not an expert!

Good luck! I sincerely hope you only have a head gasket problem.

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gerard

10-15-2007 16:35:07




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 Re: OIL in radiator in reply to Gene in La, 10-14-2007 21:53:35  
Don"t like the sound of this. Most likely head gasket originally, but now it won"t crank - could be a cylinder filled with water causing an hydraulic lock - or could it have run out of oil and the crank has seized?
Take plugs out. If it still doesn"t turn, afraid it sounds like the latter.



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gshadel

10-15-2007 12:11:14




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 Re: OIL in radiator in reply to Gene in La, 10-14-2007 21:53:35  
Gene, hopefully it is just a head gasket. As far as not starting, sounds like you have a dead battery, you will need to figure out if the battery is shot, or do you have a charging problem. I recommend pulling the battery & trying to charge it, if it's more than ~4-5 years old, maybe just replace it. Get your TO running again and get back to the garage so you can work on it easier. If you pull the head, check it & the block for warpage, the manual says how to do that. Just for fun, you may consider replacing your oil just in case you have a little water that did make it's way in there. You will be suprised at how much coolant is held in the block. If you drain the radiator to flush out the oil, drain the block real good also because you will likely have unseen oil in the block coolant as well.

George

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Jim in OH

10-15-2007 09:04:46




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 Re: OIL in radiator in reply to Gene in La, 10-14-2007 21:53:35  
Hi Gene... Well, not too many trying to jump in just yet.. so I'll give it a try... Firstly, there is not a single choice here... it could be cracked block, cracked head or head gasket... since you don't (yet) see water in the oil, that is one encouraging sign in that there may not be cracks from the coolant jacket to the crankcase, but that doesn't eliminate all kinds of cracks (just the most probable kind). What appears to be happening is that pressurized oil is leaking into the less pressurized coolant. The most likely culprit is (as you say) the head gasket so I'd start there, but since you will be taking the head off, you can inspect the top of the block and around the oil passage for cracks and you might want to also consider some head work which would include a careful inspection of the head.... Of course you might just start with just the head gasket... it might be all that is wrong.. JIm

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