Pilot bearing/bushing removal

[scumby]

I've tried a two armed puller already and from the looks of it the grease trick that has worked in the past won't work on this one. i've tried heating the crank with a heat gun to expand it a bit but that didn't work either. any suggestions or does anyone have a better style puller?

[OldGreen]

Last time I did one, I made the puller out of washers, nuts and a piece of all thread. Should have taken a picture.

[79chevy39.5's]

I like to use grease and pieces of paper towel (generally scotts shop towels) I use a bolt with electrical tape to make a tight fit. There is a lisle tool that reads into the bearing/bushing that you use a grease gun on that then pushes it out

[scumby]

problem with grease is that the cavity in the crankshaft is identical in size to the I.D. of the bushing I'm trying to remove with the exception of a 1/8" tapered gap between the two about an inch from the inside of the crank.

[OldGreen]

Pic?

[scumby]

not currently at the house, maybe tomorrow. the pic below I found on the interweb since I'm not home. you can kinda see where the bushing ends and there is only about an 1/8" to get the fingers of the puller set in. however there is a taper on the bushing that allows the fingers to work their way up the taper and out of that small grove.

[79chevy39.5's]

Thread a bolt into it. It can push it out or give you something to grab onto

[Lurch]

I've got a puller at work that may work.

[scumby]

Thread a bolt into it. It can push it out or give you something to grab onto

I was thinking that as well. possibly even tapping it.

[mattawajeep]

Try a piece of white bread. Works better than grease when you dont have as much of a lip. Get a punch the same size as the hole, shove in a piece of crustless bread and hit it with a big hammer. Real fast and easy to clean up.

[OldGreen]

That is exactly what I did on my 304. Bread and BFH. Hard!

[White trash]

Is it a bearing or bushing? It must be a bearing since I'm sure you'd have broken the bushing apart by now.


If it's a bearing weld a nut to it and take a few inches of appropriately sized all thread with a nut welded to the end and crank it down.

[scumby]

Is it a bearing or bushing? It must be a bearing since I'm sure you'd have broken the bushing apart by now.


If it's a bearing weld a nut to it and take a few inches of appropriately sized all thread with a nut welded to the end and crank it down.

bushing. the red arrow shows where the separation of crankshaft and bushing are.

[scumby]

Try a piece of white bread. Works better than grease when you dont have as much of a lip. Get a punch the same size as the hole, shove in a piece of crustless bread and hit it with a big hammer. Real fast and easy to clean up.

I'm not sure the white bread would work, again that little 1/8" crack is the only separation of the two and the ID of both are the same so the bread would only be able to occupy that little crevice. And I don't have a punch of the proper size.

[mattawajeep]

I'm not sure the white bread would work, again that little 1/8" crack is the only separation of the two and the ID of both are the same so the bread would only be able to occupy that little crevice. And I don't have a punch of the proper size.

That little crack is the only bit you need. The force has to go somewhere, and it'll be the crack. Done it lot's of times on a sprayer or tractor with funky bushings.

When you push the bread in, make sure to fill the crack as well, and fill it almost all the way to the outer bushing. If you don't have the correct size punch, use some electrical tape on a bolt, or the punch to fill the gap as 79chevy39.5's said. Hit it hard with a big hammer and you'll laugh when it pops out.

[OldGreen]

Yep. It is kind of comical.

[scumby]

I guess i'll have to buy a loaf of white bread.

[scumby]

Does it have to be white bread? Forgot to pick some up om the way home, tried non white bread and it did not work. Put a few cuts in it with a dremel in hopes it would relieve some
pressure but no help. Broke my snap on puller trying to get it out. To big ID to tap it, 1.4ish inches.

Lurch, what kind of puller do you have?

[79chevy39.5's]

You can't just chisel it out?

1.4 is big what this in?

[scumby]

chiseling not going to work it's more of a sleeve that's an 1/8" - 3/16" thick for the nub on the torque converter to fit into. it's a 4.0 block.

[79chevy39.5's]

Converters don't use pilot bushing

[Roman]

UH OH!

[mattawajeep]

Does it have to be white bread? Forgot to pick some up om the way home, tried non white bread and it did not work. Put a few cuts in it with a dremel in hopes it would relieve some
pressure but no help. Broke my snap on puller trying to get it out. To big ID to tap it, 1.4ish inches.

Lurch, what kind of puller do you have?

What kind of bread did you use? I imagine whole grain stuff might not work that well. But anything with the same consistency of standard white bread should work. Hotdog, hamburger bun, playdough.....

You apply any heat or PB blaster to it yet? Bread should work no matter what, but if you've got penetrating oil in there it would lessen the force you need to apply with the hammer.

Oh, and if it's that big, 1.4", you'll need a big hammer. A full sledge would make things easier.

ETA: I think I remember reading about that particular sleeve. I think most cut it out or use a chisel. If you have a decent chisel set and sharpen them you can cut through just about anything. It's also big enough that you could fit a slid hammer in there, or even a sawzall.

[OldGreen]

Does it have to be white bread? Forgot to pick some up om the way home, tried non white bread and it did not work. Put a few cuts in it with a dremel in hopes it would relieve some
pressure but no help. Broke my snap on puller trying to get it out. To big ID to tap it, 1.4ish inches.

Lurch, what kind of puller do you have?

WAIT. . .the hole should either be 3/4 or 7/8. Do you already have the new one? You may be removing the insert that the bearing rides in.

[mattawajeep]

http://www.jeepforum.com/forum/f9/how-r ... ne-816895/