Bearing removal off crank

[Time's Standing Stihl]

Need some ideas so I don't ruin the crank on this 064. Usually i can get my bearing puller behind it, but not enough room

 

[huskihl]

If you're replacing bearings, heat the race up with a propane torch.

 

[Warped5]

Put it in a 400 degree oven for 15 minutes ... it'll fall right off

 

[jacob j.]

Ted's idea works, or you can use one of these:

http://cgi.ebay.com/ebaymotors/New-...588491?hash=item4ae1f6334b:g:9i8AAOSwX~dWtSmE

 

[Time's Standing Stihl]

Ted's idea works, or you can use one of these:

http://cgi.ebay.com/ebaymotors/New-...588491?hash=item4ae1f6334b:g:9i8AAOSwX~dWtSmE

Tried using mine. Couldn't get behind it

 

[czar800]

Would running a bead of weld work?

 

[jacob j.]

Tried using mine. Couldn't get behind it

Do you have the Husqvarna style case splitter?

 

[Time's Standing Stihl]

Negative, just a homemade splitter

Sent from my SM-G900R4 using Tapatalk

 

[Warped5]

Put it in a 400 degree oven for 15 minutes ... it'll fall right off

... put the NEW bearing in the freezer while you're at it.

Wait a couple hours .... then right after the old one falls off, you slide the new one right on.

 

[srcarr52]

If the crank bearing is junk then put the clutch bearing portion of the crank in a vise with soft jaws. Take a long punch right next to the conrod pin on the outer race and walk it off. If the outer race breaks then cut it off.

 

[panteliss]

You need a TWO jaws puller + heat

 

[panteliss]

Put it in a 400 degree oven for 15 minutes ... it'll fall right off

If you speak for the crankase i agree , but if you speak for the crankshaft dont be so sure , or if you can explain how you can hold the crankshaft cold without expand and only the bearing hot if you put them together into the oven

 

[Time's Standing Stihl]

Just so happened I stopped at a local Sears that was closing and had all their Craftsman tools 20-60% off. Found a 2/3 jaw puller that I thought would fit the bill, as all I had before was a 3 jaw.

Took longer for me to get the puller out of the plastic package then it did to pull the bearing. No heat need.

 

[Duce]

If the crank bearing is junk then put the clutch bearing portion of the crank in a vise with soft jaws. Take a long punch right next to the conrod pin on the outer race and walk it off. If the outer race breaks then cut it off.

Your method works well. Local Husqvarna tech just uses a standard vise and showed me you really have to crank it down hard to even begin to make a mark on a crank. We tried to mark a bad one, you have to work at it.

 

[Al Smith]

Some times you can just freeze the whole works for a night then tap it on a wooden table,plank or something .Doesn't work every time .

 

[heyduke]

you can use the standard husqvarna case splitter. put the crank in your vice. hook the splitter over the bearings with the rod between the two arms. crank down on the end of the shaft. it only works if there is one bearing, but thats often the case after you've split the cases. here's a vid:

 

[Jimmy in NC]

you can use the standard husqvarna case splitter. put the crank in your vice. hook the splitter over the bearings with the rod between the two arms. crank down on the end of the shaft. it only works if there is one bearing, but thats often the case after you've split the cases. here's a vid:

I do something similar, but i just hold the crank and clamp the tube of puller in the vise. Push the bearing off and never have a chance to mark the crank.

 

[heyduke]

I do something similar, but i just hold the crank and clamp the tube of puller in the vise. Push the bearing off and never have a chance to mark the crank.

yeah-

i agreee, i normally clamp the puller in the vice. but the steel in a vice is softer that a crankshaft. the only scar tissue from this was on my vise.

i first used this method on a husky 575. i had to take the crank stuffer off in pieces so i could get the case splitter on the bearing but it worked great. i used it again yesterday to get the bearing off an echo 670 crank. i guess i should get a puller but this works. it helps if you use a c-clamp, like you see in the vid, to keep the clamp from spreading and slipping off the bearing.

 

[grassguerilla]

If you speak for the crankase i agree , but if you speak for the crankshaft dont be so sure , or if you can explain how you can hold the crankshaft cold without expand and only the bearing hot if you put them together into the oven

By heating it for only 10 or 15 minutes only the outer parts get hot. If you left the whole assembly in the oven for an hour letting it get hot all the way through it would make little if any difference likely.