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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

'68 JD350 dozer oil drain plug help?

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barryinmn

06-26-2004 10:41:04




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Ready to do my first oil change on the machine & the plug does not fit an allen wrench, 1/2" ratchet rounds out, 3/4 is too big... Looks like a 1/2" plus Torx. I have Torx in small headlight sizes only. Is this another JD specialty item? What is it & where can I find the right fitting. Any help appreciated!




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barryinmn

07-01-2004 20:45:08




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 Re: '68 JD350 dozer oil drain plug help? in reply to barryinmn, 06-26-2004 10:41:04  
Thanks for the tips. 5 min @ friendly welder & plug is out & replaced with new. Regular bolt head from JD.



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G.Lewis

06-28-2004 05:46:13




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 Re: '68 JD350 dozer oil drain plug help? in reply to barryinmn, 06-26-2004 10:41:04  
Had a similiar problem with the final plugs on my 350B this past weekend, the ends of the plugs were torn up pretty bad. Mine were 3/8" square recessed holes. Used a die grinder to clean up one of them until I could remove it. No such luck on the other side. Removed the final pan and Tig welded a piece of square stock to the plug (tried this trick under the machine but my eyesight and hands are not like they used to be). The original Deere plugs are steel not cast. When the piece cooled a little, the plug came out easily. Have used this trick many times on broken bolts and studs in castings, welded a washer and then a nut with Tig to broken bolt. Heat will cause bolt to shrink and loosen. Tapped hole threads deeper and re-istalled new plugs flush with final housing to avoid future damage. New Deere plugs come with recessed allen drive holes. Just another method to try. Good luck.

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bob

06-27-2004 21:54:05




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 Re: '68 JD350 dozer oil drain plug help? in reply to barryinmn, 06-26-2004 10:41:04  
I've got a '69. Its a six-sided plug. Use an old bolt with correct size head & put pipe wrench on threads & bring it out. Biggest problem will be keeping the bolt head up in the plug. Go to your dealer & buy the new type plug & replace old one & troubles are over.



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David in SC

06-27-2004 03:56:20




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 Re: '68 JD350 dozer oil drain plug help? in reply to barryinmn, 06-26-2004 10:41:04  
I had the same problem on my final drive plugs, and as luck would have it they were the drain ones and not the fill ones. I took an EZ-OUT, and kept grinding the end off until it fit the remnants of the square hole. I did this because I had 2 of the same size and they were both too small, but because they are tapered I could make it work by grinding the small ends off. If your tool set has the right size EZ-OUT then you may be in good shape. Drive it in the hole and back it out. When I refilled my drives I used the good plugs from the fill holes and put these on the bottom. On the boogered up plugs, I welded a 3/4" nut to the plug so I can use a socket, and put them in the fill holes.(I am 20 miles from town and often get impatient on things like that). Worked well for me.

Good luck.
David in SC

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Pete/ME

06-27-2004 03:35:00




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 Re: '68 JD350 dozer oil drain plug help? in reply to barryinmn, 06-26-2004 10:41:04  
Almost positive it was a 1/2" square hole...for 1/2" drive ratchet. If you could find one mother of an ez-out? I'd probably get a piece of 3/4" square bar stock and grind it down and pound it in. If you don't have a belly pan the plugs tend to get buggered. Replace it with a pipe plug, so you can get a wrench around it. I think it's pipe thread into the base.



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