Another point that should be addressed. After you get the pump in and the pan replaced, fill it with oil, pull the distributor, and spin the pump up with an electric drill thru the shaft opening to prime the system and the pump.

 

Well, I got that *#*!*#*! Temporary oil plug out!

 

Nice!

 

VERY GOOD!!! Amazing what persistence can do! I know, you weren't looking forward to dropping the pan, were you? What carnage is left? Do you think an oversized plug would work? I believe the original thread was 1/2-20 if I'm not mistaken. The welded insert in the pan is case hardened and the plug is dead soft. You can try a 1/2-20 tap in there to see if there are any threads left to salvage, otherwise you'll have to find an oversized plug and hope it cuts new threads. One other barnyard thing I've seen done is weld a 1/2-20 nut onto the pan and put a new plug in that.

Here's a thought. When the Army speced out the jeep, they wanted the oil pan drain plug to be the same thread as a spark plug so if the drain plug was misplaced in the field, a spark plug would work until a new plug was located. That's a 14 x 1.25 mm thread, the same as 02 sensors, and you can get that plug from Jeep. You'll have to find or buy a tap, though. It's just a little over 1/2 so you shouldn't have to drill the hole bigger. After you tap the hole, use an airhose thru the oil filler cap to blow out the chips.

 

I was looking at the pic of a new wing toggle plug posted by Lawsoncl and notice a a slit in each wing. If you take a piece if tie wire and make a small loop shaped bend at the end you are able to push it through one of the slits and twist the wire. The trick then is to screw the plug bolt back in enough while holding the wire so that the wing toggles back parallel with the bolt. Then pull the plug and wire slowly at the same time. Once you get it partially through the oil drain plug hole it will require some vice grips to pull it out. It took about a hour and some good lighting to get it out, but I have tremors in my hands. If someone has nice steady hands and patience it would take much less time I’m sure.
Now please send me some suggestions on tapping, using oversized bolts etc... I saw something called an “Eco-plug” it’s magnetic, but not sure about that. Any ideas?????

 

Thanks dave1123! I need to read your post again. I may have more questions on the tap!!! And NO I was not looking forward to dropping the pan. Unless I absolutely have to I mean. I will need to line up some help I think if I ever do that.

 

Will the save-a-thread spark plug insert 14x1.25 kit work on a steel oil pan? Dave1123, I was checking it out online and it says for aluminum or cast iron. Is the metal in my oil pan soft enough? I would really like to go this route with some red loc-tite on the insert. Seems like a permanent fix.

 

I've seen these used before. The only downside is that it drains slower.

 

From what I have found so far online and talking to the local parts stores is that my 89xj calls for a 1/2x20 drain plug. I have also found info that says 14x1.25. Are these the same ? (The parts guys were unable to tell me) I’m trying to find a self tapping plug for my stripped oil pan or maybe a tap, but What should I use????

 

Read post #19. The 14x1.25mm plug was from the military jeep 2.5L 4-banger. That's a sparkplug thread and you should be able to get a tap online somewhere if not at a parts store.

 

1/2x20 and 14x1.25 are not the same. 1/2 is SAE, and 14 is metric (14mm, 1.25 thread pitch). 1/2 is roughly 13mm, so 14mm is obviously bigger, but I'm not sure if it is "bigger" enough. How bad are the factory threads? I would start by chasing those threads with a tap and see how it looks. You may get lucky and find that the original threads were only slightly damaged and can be saved.

 

You know what? I'm out of this discussion.

 

I'm pretty sure it's a M14-1.25. I can understand the confusion as some of the parts websites are showing multiple sizes, including 1/2-20. Parts Geek even shows an M12-1.75 for the 4-cylinder.

Have you tried threading in a regular M14-1.25 bolt to see how bad the threads are?

 

M14x1.25 was too small. I tried a the Dorman 14x1.50 oversized self tap and it was going in just fine with some good pressure on the ratchet, but before it seated it started spinning. Took it out and all the threads on the plug bolt just rounded over. Not sure what ticked you off dave1123, but I sincerely apologize. Thanks everyone for your input. I’ll figure it out one way or the other. I don’t want to tick anyone else off. I am just trying to understand this and thought that is what this forum was all about????