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mndak 
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Joined: 10 May 2012
Location: South Dakota
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 Topic: D17 welded oil plug - how do I change the oil ?
Posted: 03 Oct 2021 at 8:07pm |
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I have a series 1 D17 - the oil plug is welded by previous owner. Changing the oil pan sounds …. Um complicated.
Any ideas?
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Darb210
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Location: Ohio
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Posted: 03 Oct 2021 at 8:12pm |
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use a cut-off wheel and gring the weld off, expect a stripped drain plug is why it is welded
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Darb210
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Posted: 03 Oct 2021 at 8:12pm |
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grind, not gring..... fat fingers
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KMAG
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Posted: 03 Oct 2021 at 8:31pm |
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There is an edit feature under the post options tab allowing typos to be corrected.
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Adam Stratton
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Posted: 03 Oct 2021 at 9:35pm |
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You could bore a hole through the plug and rethread it to a smaller size, or, bore a hole anywhere to drain then get another oil pan to replace. Agree that dropping the pan full would be a mess! Taking the pan off otherwise is not that tough of a job
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DrAllis
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Posted: 04 Oct 2021 at 5:43am |
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I doubt that the plug is actually welded into the hole. The most common reason to weld a hex nut to the drain plug is because they've rounded off the corners of the drain plug itself and the 1 1/8" wrench can't grab anything. A picture would be nice.
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WF owner
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Posted: 04 Oct 2021 at 5:55am |
After you get it out, you might want to think about replacing the drain plug with a Fumoto valve.
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mndak
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Posted: 04 Oct 2021 at 9:11am |
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I will get a pic -
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steve(ill)
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Posted: 04 Oct 2021 at 9:16am |
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Im with DOC... the oil pan is thin.. There is a BLOCK welded to the pan that is threaded that the plug screws into.. Either you are seeing the weld on the BLOCK , or you are seeing a repair weld to the head of the plug.... You could have a allen head plug that is recessed into the BLOCk and that is what you are seeing... CLEAN the plug real good and look closer.
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Like them all, but love the "B"s.
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Acdiesel
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Posted: 04 Oct 2021 at 10:38am |
remove pan, fix it right- takes time but not a hard job. IMO
side note, most newer foreign cars also have no drain plugs you have a tube that goes down the dipstick tube and you pump it out.
Dan
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D19 Diesel,D17 Diesel SER.3
2-D14, 2-D15 SER.II WF/NF
D15 SER.2 DIESEL
D12 SER.I, D10 Ser.II
2-720'S D21 Ser. II
Gmc,caterpillar
I'm a pharmacist (farm assist) with a PHD (post hole digger)
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Stan R
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Posted: 04 Oct 2021 at 1:13pm |
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Just don't do what my father and I did many years ago. The drain on the D15 was overtightened, so we put heat around the drain bolt area and put a long pipe wrench to the bolt. All of a sudden the drain plug unseated itself (if my memory serves me correctly, the inside threaded portion broke off inside the oil pan), oil came out and caught fire and engulfed both sides of the tractor engine. Tractor was half in the garage. I jumped on the tractor, started it in order to get it out of the garage and luckily, upon starting the flame went out with no damage to anything....
Though we took the oil pan and had a nut brazed on for the drain bolt.
Edited by Stan R - 04 Oct 2021 at 1:18pm
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Steve in NJ
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Posted: 04 Oct 2021 at 6:15pm |
Contact the P.O. and see if he actually welded the oil drain plug in or he put some weld on it to repair the rounded plug. Might be like Steve mentioned. He just repaired the plug. Can't be that tough to install a new plug. If he did actually weld the plug in place, drill another hole in the bottom of the pan to drain the oil, then remove the pan. The aftermarket sells oil pan bung kits where you can weld a new bung in the pan, and then use the new plug that comes with the kit. I repaired a couple Detroit oil pans that way years ago. HTH Steve@B&B
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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
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Tbone95
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Posted: 05 Oct 2021 at 7:02am |
 Stan R wrote:
Just don't do what my father and I did many years ago. The drain on the D15 was overtightened, so we put heat around the drain bolt area and put a long pipe wrench to the bolt. All of a sudden the drain plug unseated itself (if my memory serves me correctly, the inside threaded portion broke off inside the oil pan), oil came out and caught fire and engulfed both sides of the tractor engine. Tractor was half in the garage. I jumped on the tractor, started it in order to get it out of the garage and luckily, upon starting the flame went out with no damage to anything....
Though we took the oil pan and had a nut brazed on for the drain bolt. |
Now there's a story! 
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DrAllis
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Posted: 05 Oct 2021 at 7:13am |
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Brings back memories of Moe, Larry and Curly......
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Gary Burnett
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Posted: 05 Oct 2021 at 7:52am |
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I'd grind all the weld off and use an ease out or whatever to get the plug out.If there were any threads left I'd get a pipe bushing and coat it with red Loctite to screw into the original hole then get a plug for the inside of the bushing.
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steve(ill)
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Posted: 05 Oct 2021 at 8:17am |
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why would ANYONE weld in the drain plug ? Why waste the time and effort ? You could easily do a repair , one size bigger...... I really DOUBT the plug is welded.. He is looking at it wrong.
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Like them all, but love the "B"s.
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Gary Burnett
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Posted: 05 Oct 2021 at 8:48am |
steve(ill) wrote:
why would ANYONE weld in the drain plug ? Why waste the time and effort ? You could easily do a repair , one size bigger...... I really DOUBT the plug is welded.. He is looking at it wrong. |
Why I don't know but I have seen them welded before.
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DaveKamp
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Posted: 06 Oct 2021 at 12:47am |
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Use a marine-type suction oil extractor. Tube goes down the dipstick hole into the pan... hand pump, or electric pump draws the oil out in about 20 seconds.
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Ten Amendments, Ten Commandments, and one Golden Rule solve most every problem. Citrus hand-cleaner with Pumice does the rest.
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