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Patrick

08-08-2001 15:29:42




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I HAVE A 9N AND I,M GETTING OIL IN THE WATER. IS THIS A SIGN OF A BAD HEAD GASKET OR A CRACK BLOCK ?




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Dell (WA)

08-08-2001 20:21:04




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 Re: FORD 9N in reply to Patrick, 08-08-2001 15:29:42  
Patrick..... ..Before you pull your cylinder head, do a compression check. Both dry and wet. If'n you don't know how, ask.

If'n you're seeing what looks like oil floating on the top of the radiator water, its probably a bad headgasket. And its really not "oil" but combustion byproducts being blown thru the weak headgasket from the high pressure of the combustion sequence.

N's radiator pressure is only 4 psi and is kinda hard pressed to repell the high pressure of combustion..... ...Dell

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JOHN

08-08-2001 19:47:45




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 Re: FORD 9N in reply to Patrick, 08-08-2001 15:29:42  
My 2 cents worth: I would have the head checked for cracks (any machine shop will do this)while you have the head off and then you will know for sure (heads aren't cheap, but they are not as bad as OHV engines, either, and the heads are available). I had a lot of hairline fractures in my engine head and I'm glad I had it checked out; without the glass beading, I never would have seen it. Good luck with it, and remember to retorqe the head according to the manual, and then after running it for a while, shut it off and let it cool overnight, and retorque the head again.
JOHN :>)

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jamie

08-08-2001 18:27:40




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 Re: FORD 9N in reply to Patrick, 08-08-2001 15:29:42  
i need a float for my 8n ford



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JRH_9N

08-08-2001 16:58:19




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 Re: FORD 9N in reply to Patrick, 08-08-2001 15:29:42  
Change the head gasket. Its a 2 hour job, head gaskets are cheap (maybe $8), and in my case it fixed my oil in water and water in oil problem.

I'd buy the soft (not metal covered) head gasket first and change it before worrying about the block for now.

Best of luck.... I've been there, done that, and hope you are as lucky...

Jim



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lc

08-08-2001 15:37:48




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 Re: FORD 9N in reply to Patrick, 08-08-2001 15:29:42  
Yes. lol Without checking further, yes it could be either.



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Dan

08-08-2001 16:25:20




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 Re: Re: FORD 9N in reply to lc, 08-08-2001 15:37:48  
How about connecting the compression tester to the radiator . ----- -- Sould show ZERO .OK?



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lc

08-08-2001 18:13:58




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 Re: Re: Re: FORD 9N in reply to Dan, 08-08-2001 16:25:20  
Probably but not for the reason you think. There's maybe 10 psi in a warmed up tractor(guessing) and the guage doesn't read 10 psi very well at all. As you warm up the thing the pressure will increase, if it comes above whatever the pressure reading of the cap is then I'd be worried. But, just beacuse it shows nothing does not mean the head gasket is good. The gasket can blow from oil to water galleys and not show any compression related problems. Question for Patrick is; If when you first start it does it run rough on one cylinder and then clean out in say, 10-30 seconds? And, ground the coil lead so it won't fire and crank it a bit, then pull the plugs and look for any sign of water drops on the plugs. I'm just thinking from an auto standpoint here and my 9 is at the barn so I can't "see think" that way.

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Tom-Pa

08-09-2001 06:08:07




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 Re: Re: Re: Re: FORD 9N in reply to lc, 08-08-2001 18:13:58  
The pressure cap on a N series radiator is 4 psi.



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lc

08-08-2001 18:18:02




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 Re: Re: Re: Re: FORD 9N in reply to lc, 08-08-2001 18:13:58  
The pressure will probably be nil any way because the oil galley not compression, would be pressurizing to the water, very slowly. Also, Patrick, what's the background on this problem? Did you just buy the tractor, had it for a while and it just started, it's been getting worse?????



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