Farm Equipment - Help with uncooperative oil drain plug

Print Page | Close Window

Help with uncooperative oil drain plug

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=7054
Printed Date: 16 Jan 2025 at 5:50pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Help with uncooperative oil drain plug

Posted By: Embellem
Subject: Help with uncooperative oil drain plug
Date Posted: 23 Jan 2010 at 4:20pm

I bought a WD back last fall and went out to change the oil today. The oil drain plug will not budge--I mean this thing is on hard! In the process I tried an impact wrench and heat and still nothing. The head was already rounded a little when I started and now it is totally rounded off. (Why didn't they make the head taller so you can actually get some grip on the thing?)

Any brilliant ideas? I've exhausted everything I can think of that wouldn't result in wrecking the oil pan. I already bought a new plug, so destroying the existing plug in the process is not a problem.

Thanks

Replies:

Posted By: Jeff Z. NY
Date Posted: 23 Jan 2010 at 4:32pm

You can also drill a hole through it to get the pressure of the threads. If it is a plug with a head that rests on the pan you can cut the head off with a high speed cutting wheel.

This will take the pressure off the threads. With a hole drilled in it an easy out should be able to remove the rest without much problem.

Also some really good hard hits with a heavy hammer after heating will loosen the threads.

And as stated in another post, if it's a steel plug weld something to it.

I welded a really large nut to a bolt and used a breaker bar with success.

Weld the large nut to the plug in the center of the large nut.

Posted By: ChuckLuedtkeSEWI
Date Posted: 23 Jan 2010 at 5:10pm

Just be careful when drilling through though. I don' t know on a WD if the bottom of the oil pump pickup is right over top of the drain hole but on my dad's 45 diesel, the oil pickup was right over top. My dad had the same problem as you did, and when he went to drill the hole, he pushed too hard at the end and went through the plug, the drill bit went up through the pickup screen, went inbetween the gears and broke off. My dad then tried to bump the starter hoping to dislodge the broken piece of drill bit; the oil pump didn't move but the rest of the engine did and the worm gears on the cam that drive the oil pump sheared off. This all happened when my dad's 45 diesel had a New Idea corn picker/sheller mounted on it. It ended up sitting off on the side for 20 or so odd years and my dad gave it to me. I should thank him for his mistakes help lead me to my orange addiction, otherwise if the tractor was still running, my dad would have probably sold it when he first got out of farming when I was a little tike yet.

Posted By: NCWC
Date Posted: 23 Jan 2010 at 6:21pm

If you have access to a welder get a nut that you can get a grip on and weld the nut onto the plug on the outside of the nut and the inside. It should have enough heat to make it come right out. Done this on a B one time worked like a charm.

-------------
B,C,CA,RC,WC,Unstyled WC,WD,WD-45,B puller, WC Puller,WD Puller, WD-45 Puller