ANOTHER bearing question

[ErikS]

How on EARTH do you guys remove a race that's stuck in the crankcase, when the rest of the bearing fell apart and came out? Basicly, I've just the outer race stuck in it's seat on the flywheel side of the case (044), and have no idea how to remove this damn thing!

 

[HarleyT]

Show a pic from the other side.

 

[ErikS]

 

[ErikS]

seems like a real s**t show to get this thing out, but decent 044 cases aren't that easy to come by, and I'm so detail oriented that I'd never settle for a 440 case with a flippy cap. Oh the trials and tribulations of a chainsaw addict!

 

[HarleyT]

You'll need a new, good pin punch.

 

[67L36Driver]

Drill two holes a 180 degrees in the case to intercept the middle of the race.

Put it in the oven and get it up to 300-350 degrees. Remove it and quickly use a pin punch that fits your two holes and tap it out. The expansion is much greater for the magnesium than the steel race.

Plug the holes with short length of all thread.

Plan your hole size around the pin punch and best thread size for the plugs.

Use a drill press. Hyping don't want sloppy holes just clobbered in there.

 

[gunnusmc03]

Harbor freight sells a decent inside bearing race puller. It's basically an expandable collet with a slide hammer. Works well for saws.

 

[ErikS]

and tap from the outside of the case on that inner race until it comes out? Also, what sets the depth of the bearing on the clutch side? Obviously the flywheel side has a stop (the outside of the case), but the clutch side looks like a straight through hole to mount the bearing. Maybe bolt the oil pump in place, and press until it stops? This is my first time swapping bearings, and of course I get the joys of the broken race my first time around! LOL

 

[67L36Driver]

You'll need a new, good pin punch.

Sears best, not Harbor Freight.

 

[HarleyT]

Or else you'll have to fashion a puller using a bolt and a large socket.

 

[blsnelling]

No, don't drill holes in you case? This is a simple fix. All you have to do is re-assemble the bearing and knock/press it out.

 

[blsnelling]

The oil pump must be installed before the new bearing is.

 

[HarleyT]

No, don't drill holes in you case? This is a simple fix. All you have to do is re-assemble the bearing and knock/press it out.

Drill?

 

[blsnelling]

Drill two holes a 180 degrees in the case to intercept the middle of the race.

This.

 

[HarleyT]

Oh, I see it now!
Let's work on the race removal for now.
For clarity.

 

[blsnelling]

I also don't think you'll get anywhere with punches.

It wouldn't take more than three balls to hold the inner race in place and allow simple removal of the outer race. That bearing could be out in 5 minutes.

 

[HarleyT]

But does he have the balls to do it.......................................?

 

[HarleyT]

Brad, let's see you stick your balls in one!

 

[ErikS]

he's damn sure got the balls to try!

 

[blsnelling]

Buy a $10 bearing if you have to. You risk tearing up the seal bore with a punch and I don't believe that will be very affective anyway.