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Ford 9N, 2N & 8N Discussion Forum
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Oil drain plug

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Pete in MI

10-13-2004 18:41:50




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Hi again guys. I'm ready to do the engine oil change before I tackle the lift pin fix, but after warming the tractor up I was unable to get the drain plug out. I've not encountered totally square (by design anyway) bolt heads before. What do you recommend I use to get it off? I was putting a large amount of force to it and was not able to get it to budge. I'm assuming it's not a reverse thread for some odd reason..? Thanks again for your help.

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8NKY

10-14-2004 09:47:26




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 Re: Oil drain plug in reply to Pete in MI, 10-13-2004 18:41:50  
A standard 12 point socket of the correct size with a breaker bar should do the trick. May even need to add a cheater pipe if it is really tight.



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Steve IA

10-14-2004 09:43:12




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 Re: Oil drain plug in reply to Pete in MI, 10-13-2004 18:41:50  
If you have to grind on the plug head to square it up, be careful not to remove too much. The previous owner of my NAA ground on the plug and the 1st time I tried to remove it, the lug broke off and left a hole in the plug and oil all over the floor. Here's some pictures, and how I temporarily fixed the plug until a new one arrived by UPS. Steve NAA III443

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Gaspump

10-14-2004 08:39:33




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 Re: Oil drain plug in reply to Pete in MI, 10-13-2004 18:41:50  
All N tractors had the square oil drain plugs. The hex plugs are for the transmission & diff. Willy-N's method usually works best but I have seen them installed with a lot of permatex and found that in some cases a little heat was necessary too. If you do have to resort to a hammer and chisel have a new one on hand should you ruin the original one, about $11.



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souNdguy

10-14-2004 05:16:52




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 Re: Oil drain plug in reply to Pete in MI, 10-13-2004 18:41:50  
Big box end wrench / cresfent wrench / pipe wrench.. etc. Tap the wrench with a hammer to get it started. In extrene circumstances, heat it to help break it free.. or use a chissle to tap it around.

When you have it out.. if the threads are buggered or the head is buggered.. dress it with a file.. or simply replace.. TSC has them with the oil screen on the shelf for 9 bucks or so.

Soundguy

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lonestarjeff

10-13-2004 22:11:22




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 Re: Oil drain plug in reply to Pete in MI, 10-13-2004 18:41:50  
First time I drained mine the shoulders were so rounded off vice grips would not hold. I had to climb under w/ a grinder & square-up the "nut".
After that a crescent wrench did the trick.

Jeff



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Willy-N

10-13-2004 19:42:50




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 Re: Oil drain plug in reply to Pete in MI, 10-13-2004 18:41:50  
If you place a board between the wrench and an floor jack to hold it in place so it won't slip you can pull real tight on the wrench (Pipe wrench works good for this)and tap it with a hammer to bust it loose (counter clockwise like a regular bolt). You could warm it up with a propane torch a little around the treads just to help un/seize it also. Mark H.



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GAJIM

10-13-2004 19:33:07




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 Re: Oil drain plug in reply to Pete in MI, 10-13-2004 18:41:50  
Try a large crescent wrench. If that doesn't do the job, get out the big vise grips. Once you get the plug out, Use a file to square it off if you need to. The 1st time I changed the oil on my 8N, it was a bear to get off. No telling how long it had been since the oil was changed or how tight the plug was.



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Dan

10-13-2004 18:52:12




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 Re: Oil drain plug in reply to Pete in MI, 10-13-2004 18:41:50  
You would use a wrench. BTW - most engine oil plugs are hex shaped (although you still use a wrench), are you looking at the plug directly under the engine or the little square pipe plug at the very end of the tractor? That plug at the end is for the hydraulic oil.

Good luck,
Dan



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Pete in MI

10-14-2004 04:55:04




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 Re: Oil drain plug in reply to Dan, 10-13-2004 18:52:12  
This is the approx. 1 inch bolt directly under the engine. It looks very similar to the transmission fill bolt on top, however this was made square...I'll try all these suggestions until I get it loose. Thanks again!



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Dan

10-14-2004 05:05:51




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 Re: Oil drain plug in reply to Pete in MI, 10-14-2004 04:55:04  
OK, now I understand. On my Dad's 1963 Ford 2000, he had not changed the oil in over 20 years! It was funny seeing my Dad being chastised by his son. After I got it running again after being dead for a couple of years, I went to change the oil, and of course the drain plug was not moving. What I eventually had to do is slide under the tractor with my head towards the front of the engine, put my feet up on the edge of the running boards for leverage and stability, and use my legs to move me and the wrench towards the front of the tractor. This way I could ensure the wrench stayed square on the bolt and didn't slip. It worked great (and that oil was BLACK!).

Good luck,
Dan

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gahorn

10-14-2004 08:16:37




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 Re: Oil drain plug in reply to Dan, 10-14-2004 05:05:51  
Yeah, but your Dad saved $680 in oil/filter costs (average price for quarterly oil/filter changes with oil @ $1, filters @ $2.50) and it still runs just fine doesn't it! (grin)



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Dan

10-14-2004 08:43:38




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 Re: Oil drain plug in reply to gahorn, 10-14-2004 08:16:37  
To be quite honest - I don't think my Dad knew it had oil in it - much less that it needs to be changed from time to time :-)

Compression was about 120 in all cylinders, I almost fell clean over.

Dan



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