1953 Jubilee Oil Plug

geowesley

New User
Ok, I've got a question, ordered the 9N6730 Plug with screen aftermarket in lieu of the original 9N6727A3 me and my buddy finally got it off. Only problem, the threads are made higher up on the new plug which when tightened leaves like a 1/2 inch gap between the bottom of the pan to the plug. Any advice/solution?
 
(quoted from post at 08:33:53 12/05/22) tHICK ORING OR COPPER WASHER...
k

Thx for the response, is it suppose to be like that though? Would like to know why if it is or the history if anybody has a clue. Really has me puzzled.
 
That screen is supposed to go up into the inlet tube. Make sure the top of your screen is nice and round and that the inlet tube didn't get moved out of alignment. How does the new plug and screen compare with the old one?
 
(quoted from post at 13:54:20 12/05/22) That screen is supposed to go up into the inlet tube. Make sure the top of your screen is nice and round and that the inlet tube didn't get moved out of alignment. How does the new plug and screen compare with the old one?

Re-read the original post. He says that the threads are not down near the head of the plug like on the original, but farther up, so that when the threads are fully tightened there is a gap between the head of the plug and the pan. It sounds like a defective part to me, or they sent him the incorrect part.
 
(quoted from post at 11:26:20 12/05/22)
(quoted from post at 13:54:20 12/05/22) That screen is supposed to go up into the inlet tube. Make sure the top of your screen is nice and round and that the inlet tube didn't get moved out of alignment. How does the new plug and screen compare with the old one?

Re-read the original post. He says that the threads are not down near the head of the plug like on the original, but farther up, so that when the threads are fully tightened there is a gap between the head of the plug and the pan. It sounds like a defective part to me, or they sent him the incorrect part.
I actually had two new ones, both are part # 9N6730 and every parts distributor I looked at stated it was for a 53 Jubilee. The one we took off has the part # 9N6727A3 stamped/embossed on it, in the inside bottom. A little further to the right are the letters CAL stamped in the metal. Sorry, new to the forum. Should have taken the time to include pics in my initial posting. Here are a few and you can clearly see the newer ones threads are like 2/16 to 3/16 higher than the older one.
mvphoto99973.jpg


mvphoto99974.jpg


mvphoto99975.jpg


mvphoto99976.jpg


mvphoto99977.jpg
 
I actually had two new ones, both are part # 9N6730 and every parts distributor I looked at stated it was for a 53 Jubilee.

That is the proper part number, but the part in the parts drawing looks like your old plug, and Wengers has a used one on-line with that part number and a picture that looks like your old one.

Are those distributors New Holland dealers? I am wondering if there is some after market part manufacturer that is making them incorrectly and selling them to distributors as that part number.

The parts site also shows that part number has been superseded by part number 9N6730WGGV. Try ordering part number 9N6730WGGV form a real New Holland dealer.
 
The fact that the threads are no parallel to the sealing surface of the plug is the real problem, as shown in the second picture. Return it
again for a lot better fit!!!
 
I changed the oil in the 54 naa today. The oil hasn't been changed in a while. I noticed the oil pressure would drop after start up , go up to 40 then down to 20. When i took the oil plug out the screen was still in the pan . I pulled the screen out and wired it back to the plug. I couldn't get it back in so i removed the screen and put the oil plug back in .Now the tractor has steady 40 plus oil pressure .I was wondering if it will hurt the engine without the screen . New spin on filter and 10w30 oil , i use it too move snow.
 
(quoted from post at 15:35:06 12/05/22) The fact that the threads are no parallel to the sealing surface of the plug is the real problem, as shown in the second picture. Return it
again for a lot better fit!!!
That's the problem, can't find one
 
My 40 9n and 62 4000 both use the same drain plug. I keep gaskets on hand for them. I think if you put three gaskets on it will solve your problem.
 
Yea, I replaced the canister with a spin on and gonna put 10 30 Castrol in it once I figure out this plug deal. Don't think removing the screen will solve my problem. I can see where it might help with better pressure though.
 
To me, that looks like a defective knock-off. Which is unfortunately a problem with aftermarket parts.

I don't think the thread depth is the issue, since the area below the threads has been turned down smaller than the threads. But the cockeyed threads is definitely an issue, unless it's a big optical illusion.
 

I agree with you but the two plugs come from here and all other distributors carry the exact same one 9N6730WG. Just don't get why such a difference in where the threads begin in the two, They certainly don't include a thick enough gasket with the newer to cover and seal the gap.
 

May be the way I had it positioned in the pic, sorta hard to keep em from rolling. The issue is the gap I just don't get.
 
screw it in most of the way and see if the gap left is equal on all sides, ie the threads are cut correctly. If they are, then... any copper washer/oring will seal with the plug and pan.. as its supposed too. The threads dont seal unless they are tapered. Its the cap and pan that seal.
 
(quoted from post at 01:49:29 12/06/22)
(quoted from post at 22:47:27 12/05/22)
That's what I keep getting and leaning to, ty
know what I would do. Use the old one.

Yea only thing, the old plug stud is rounded. Think I'm gonna weld a socket to it and do away with the screen.
 
(quoted from post at 13:04:28 12/06/22)
(quoted from post at 01:49:29 12/06/22)
(quoted from post at 22:47:27 12/05/22)
That's what I keep getting and leaning to, ty
know what I would do. Use the old one.

Yea only thing, the old plug stud is rounded. Think I'm gonna weld a socket to it and do away with the screen.
welded a nut on mine.
 
That new plug made that way may be an update to get away from using the threads at the very bottom of the pan. Apparently there was and issue with stripped threads or something. Im wondering maybe you are trying to screw the plug into the formerly unused threads where gunk and dirt has been collecting for 70 years. Im not seeing in your post that you know what it is hitting, only that it wont go all the way in.
 
Ugh!
I hate to weigh in on this. You've been bitten by import junk. I also have the Jubilee and can't tell you how many times bought a part including from YT store only to have it be different.
I'd first look at Ebay for an original in good shape, then if your handy you could desolder (if that's what's holding the screen on) the new one and put it on the old one.
barring that, send it back. Cheap cursed import junk.
Rachel Gingell at farmtractorrepair dot com has the drain plug w/screen GR1957 $22.75 + shipping.
She is the young lady & father who make lots of Youtube videos about tractor repair.
 
Guess I'll add. There are multiple drain plugs w/screen on Ebay. Plus there are quite a few old used ones in pretty good shape.
You can definitely see the difference in the new ones where the threads are not cut down to the flange.

There was a set of four used ones for $2.99 ea. + $8.50 shipping. I'd ask the seller if the screens were intact.
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top