rebuilding a Blaster motor

[dasboata]

     

Hi I'm a long time motor head RC car and boat,,, grandpa,,,I'd like to say hello & thanks for the add !!!! I bought a blown motor blaster as a project,, It needs a crank and piston , I bought wiseco stuff, I have started rebuilding today , I can use some suggestions for pulling the crank into the bearings , in the clymer it suggest a 12mm coupler some pipe and a threaded rod .I can't find the 12 mm coupler any suggestions plz wish me luck guys I'm sure I will be asking a lot of questions thanks Chris

[gusco]

Put the crank in the freezer over night. Heat a suitable size socket and place it over the inner race of the bearing for a few minutes until the inner race is too hot to touch. Take the crank from the freezer, coat the shaft you'll be inserting, and it should slide right into the bearing. Have the other case half ready with some yamabond and the trans, reheat the socket a bit, put it on that side's main bearing inner race, and join the case halves.

[dasboata]

Originally Posted by gusco

Put the crank in the freezer over night. Heat a suitable size socket and place it over the inner race of the bearing for a few minutes until the inner race is too hot to touch. Take the crank from the freezer, coat the shaft you'll be inserting, and it should slide right into the bearing. Have the other case half ready with some yamabond and the trans, reheat the socket a bit, put it on that side's main bearing inner race, and join the case halves.

Thanks for the response Gusco,,, I ordered a Tusk tool for pulling the shaft into the tight bearing thanks again