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Farmall & IHC Tractors Discussion Forum
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H Oil Pan Drain Cock Question

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Henry J

12-07-2003 11:22:09




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I looked at this poor ole H sitting out in a muddy horse coral today that was for sale. I did not have my tall boots on to go out and get the serial number. The owner said that he bought it from a man that said it just quit. The current owner said that he tried to tow start it and it puffed oil out the exhaust without starting.

Anyway, I noticed that it had two drain cocks on the right side of the oil pan. Do these two drain cocks tell a lot about the tractor like it is an ancient all fuel or something similar? I wasn't around many H's when I was young and don't currently know anyone to referr to.

Thanks

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Bill Smith

12-08-2003 12:07:35




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 Re: H Oil Pan Drain Cock Question in reply to Henry J, 12-07-2003 11:22:09  
What has been said about the drain cocks is pretty much true. The main purpose for the dual oil petcocks was to drain off the unburnt fuel which would accumulate in crankcase when burning distillate fuel. You would crack the lower one open and drain down to that level (after tractor sat not running for awhile) and refill with oil to the top petcock. Not sure how many running hours you were suppose to do that, but I think everyday if you were running the tractor all day. I believe all H's had the dual petcocks (even the gas burners) but wouldn't swear to that. Never seen one with a single. About the oil coming out the exhaust, it shouldn't do that. You might want to completely drain and refill with new oil to proper level before trying to start this one. Sounds like somebody put some sort of liquid into the cylinders to prevent them from freezing up (could of used oil, fuel, or something). That is likely what was spitting out the exhaust but should run down the cylinder walls over time. I would turn it over several times with spark plugs out to be on the safe side.

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aaron smith ,in

12-08-2003 10:00:10




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 Re: H Oil Pan Drain Cock Question in reply to Henry J, 12-07-2003 11:22:09  
hi, my h has a drain cock on the side of the pan along with a screw in dipstick.i guess that it is original just i haven't noticed anymore with this setup yet



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Michael Soldan

12-07-2003 18:34:59




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 Re: H Oil Pan Drain Cock Question in reply to Henry J, 12-07-2003 11:22:09  
Henry, when you try to tow a tractor to start it and it blows oil out the breather the wires are likely on the wrong plugs and it is firing when valves are open...had this happen on our M...I had the wires on in the wrong firing order..set them correctly and it started right up...it could be that simple...some one else answered your question about the drain cocks....mike in Exeter Ontario



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James Williams

12-07-2003 12:17:47




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 Re: H Oil Pan Drain Cock Question in reply to Henry J, 12-07-2003 11:22:09  
Henry,I have found in most cases when these tractors get to the point they dont want to start or seems to be just wore out,usally its the valves,along with a head job,maybe a in frame over haul which usally not to expenseive



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Steve - IN

12-07-2003 11:50:56




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 Re: H Oil Pan Drain Cock Question in reply to Henry J, 12-07-2003 11:22:09  
Henry J,
Those draincocks are the minimum and maximum fill levels for the crankcase. I think you'd be hard pressed to find an H that didn't have them. You could use the bottom one to drain off distillate in an all fuel model -- but the gas tractors have the same setup.



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