Don’t know if your interested... I just removed my bearings from an aluminium crankcase by putting it in the oven at 160°c for 30 mins.. (be aware... wife won’t be happy... burnt oil stinks!). Pull the case out and tap the back of the bearings lightly and they will drop out! I even had some just drop out during the heating process - so have something under them. Once out, back into the oven to cool slowly so you don’t warp the engine. Installation: heat it up same way, and cool the bearings in a plastic bag with dry ice! They will just drop in! Use an internal bearing puller (or a couple of old screwdrivers with bent tip) works for those in blind holes!
Heating the case is good! Freezing the bearing is also good! I used both techniques on Norton motorcycles back in the '70s. You can slap down the case on a wooden bench once it's hot (remove the alignment pins first). That always worked for me, but I see the dead blow hammer works too. Thanks for sharing.
I have seen them come out by slapping on a wooden block but thst is a new one. For heating i used to use an electric hot plate as it gives a nicely controllable and even heat without the need to stand there waving things about.
Don’t know if your interested... I just removed my bearings from an aluminium crankcase by putting it in the oven at 160°c for 30 mins.. (be aware... wife won’t be happy... burnt oil stinks!).
Pull the case out and tap the back of the bearings lightly and they will drop out!
I even had some just drop out during the heating process - so have something under them.
Once out, back into the oven to cool slowly so you don’t warp the engine.
Installation: heat it up same way, and cool the bearings in a plastic bag with dry ice! They will just drop in!
Use an internal bearing puller (or a couple of old screwdrivers with bent tip) works for those in blind holes!
Good tips! Thanks!
by me the bearing scales dont come out what now??? this way dont work here.
Heating the case is good! Freezing the bearing is also good! I used both techniques on Norton motorcycles back in the '70s. You can slap down the case on a wooden bench once it's hot (remove the alignment pins first). That always worked for me, but I see the dead blow hammer works too. Thanks for sharing.
Smack it flat down on a wooden bench is a really good idea! Thanks for the tip and watching.
WAW! thank you!Good idea to preserve the block of the engine; I destroyed a lot of it because I installed the rings on a cool block motor
Thanks, Heating the block helps a lot.
I have seen them come out by slapping on a wooden block but thst is a new one.
For heating i used to use an electric hot plate as it gives a nicely controllable and even heat without the need to stand there waving things about.
Hot plate is definitively the better option, i just dont have one. Thanks : )