R60/7 steering stem bearing removal - help!!

[(RIP) Yamaha1]

Hi gang - I'm sure this will have been discussed before - but I can't find it if it has!!

My steering is very notchy in the straight ahead position - so I have it stripped to replace the taper roller bearings - but how can I get the collar parts out of the frame stem? The top edge seems recessed - and nothing I have to poke them out from the opposite end will actually contact the edge of the collar.

Sure there is a knack to it - seems it needs something like a large screwdriver with a 45deg bend at the end - but I can't bend my chrome vanadium one - which figures I guess, otherwise it wouldn't be much use for screwdrivering!!

Please share your pearls of wisdom with me - I'm a bit stumped!!

Mike

 

[Rob Farmer]

Various preferred options by different folk.

I use a pukka tool designed for the job. Made by Cycleworks in the states - Scroll to the bottom of this page http://www.cycleworks.net/tools_chassis_wheels.htm This takes less than a minute and is very straightforward to use. Though not really viable unless you do them frequently or live near me

Other options are welding a bar across the bearing. Welding a bead of weld to the inside of the race. cutting with a dremel before hitting with a chisel.

 

[Timpo]

Bead of weld gets the job done most of the time.

T.

 

[(RIP) Yamaha1]

Thanks guys - those tips are a great help for a seemingly impossible task!!

Rob - have PM'd you.

Mike

 

[Tarka]

I used a long Jap bike engine bolt which had a flared nut on one end of it.

By filing flat the angled edge on the flared nut it sat atop and gripped the bearing race and the bolt was longer than the Airhead headstock enabling me to 'it it wiv a `ammer' and remove the offending item.


Reckon you could grind through it with a Dremel or similar then split it out too.

 

[(RIP) Yamaha1]

"Reckon you could grind through it with a Dremel or similar then split it out too."

Tried a dremel on it - recon I'd still be there in a weeks time using that method!!

Why on earth is the headstock belled like that where the outer sits? When I replaced them in my old Tr1 some years ago, a simple screwdriver "down the 'ole" had them out in no time.

Seems maybe the weld will be the winning entry, guys - thanks.

Mike

 

[Tarka]

Tried a dremel on it - recon I'd still be there in a weeks time using that method!!

Ooops...did I forget to say about swapping the polishing wheel for a grinding/cutting one?

 

[(RIP) Yamaha1]

Ooops...did I forget to say about swapping the polishing wheel for a grinding/cutting one?

LOL - I actually tried one of those router-type things on it - didn't even seem to scratch the surface!!

Anyway - thanks to all the advise, they are now out!! The welding was the way to go - although I now have burn marks on my freshly laid carpet in my freshly built workshop!!

Mike

 

[brassmonkey001]

LOL - I actually tried one of those router-type things on it - didn't even seem to scratch the surface!!

Anyway - thanks to all the advise, they are now out!! The welding was the way to go - although I now have burn marks on my freshly laid carpet in my freshly built workshop!!

Mike

You did better than I did then.

 

[Kenny]

You did better than I did then.

Hey, nobody could have done any worse than you