block drain plug on H

My 47 H has a twisted off block drain plug. I dilled a hole through the center. Should I use an easyout on it or should I try to chisel out the edges? Any ideas would be apreaciated. Thanks DTK.

If you don't have the pan off at this time and you don't don't feel you can get it all out without risk of wrecking the pan, you can always drill the hole in the plug larger and tap it for a smaller plug.

I would use an easy out but spray it with penetrating oil like PT Blaster first - then let it set for about an hour.

That's a good trick. That ought to be one of the better lubed threads on the tractor. (Sorry, I couldn't resist) ;8^)

I'd be careful about using a chisel. The beating would warp the pan or, worse, if it slips you could have a brand new shiny hole in the bottom.

An EZOut might do it, but I prefer DrillOuts. They usually come in sets to handle up to 5/8" threads. Center section is a threaded mandrel with a left-twist drill tip (resembles a self-tapping screw). Riding the thread around the mandrel is a sort of conical affair, with sharp, high-pitch threads (again, left-hand threads) that engage the hole that the tip makes. When that cone grabs the sides of the whole they apply left-hand torgue to the remnant of the bolt. They work well and quicklly for things that aren't stuck TOO hard, and aren't prone to breaking off like EZOuts.

Depending how agile you are, it might be easier to tackle this with the pan off. If your ultimate fix requires flame heat, that's a MUST. In any event, any drilling you do should be done with left-twist bits (pretty readily available at a good Ace/True Value or even the big box stores). Sometimes the heat from drilling and the torque in that direction will be enough to pop the bolt loose.

Doesn't anyone read or am I the stupid one ??? I read this to mean BLOCK drain NOT OIL PAN.

I'm going to plead "lack of enough morning coffee"!

I'll second the caffeine deprivation as a poor excuse, but let me be the first to thank Gary for his assessment of our intelligence.

Morning, Gary!

I've had good luck doing this: Push increasingly larger drills thru the busted plug until you begin to see the plug threads. Then go at what's left with a chisel to collapse the thin shell of the plug that remains - it'll crumble surprisingly easily.

Once the old plug's gone run a pipe tap - I think it's 3/8" NPT - thru the treads in the block to clean 'em up. To prevent the new plug from getting stuck give the threads a good coat of teflon pipe dope or Neverseez before screwing it in!

My very first experience working on an H was trying to remove a broken off block plug. Drilled a hole, insert easy out, break it off, spent the next 2 hours with a dremel trying to get the easy out chipped out of there.
So no I would not use an easy out :wink:

Randy

I gave up on ez outs years ago.. I just don't have the knack for it, I kept breaking them.

The closest I use now are left handed drill bits. More often than not as I'm going up in drill sizes the drill bit grabs and turns the broken bolt (drain plug in this case) out.

sort of like what was mentioned above but what I'm using is just a drill bit. That tool mentioned in the post above may work even better. Worst case, Its drilled out and then I tap the hole.

~Mark

It makes a big difference on the brand of easy out you use. The hardware store/Walmart varieties will get you nothing but a broken easy out. Carlise makes a good set, though. I've cranked on some of those 3/8 easy outs and they've never broken yet. (Yet, anyway)