Awesome Pilot Bearing Puller (image intense)
05-26-2006, 10:17 AM
#20
Burning Brakes
Join Date: May 2006
Location: Portland, Oregon
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Find a nut that will barely fit into the pilot bearing hole.
Find a bolt 6" long that the nut fits on.
Find a washer a bit bigger than the pilot hole, bend washer into a 'U' shape.
Put washer on bolt, then the nut.
Put the assembly into hole, once the washer is through the hole pull the bolt back and the washer should sit against the back of the bearing.
Tighten bolt until it it starts to bottom out against the flywheel at which point the bearing should pop right out.
Have a Beer.
Find a bolt 6" long that the nut fits on.
Find a washer a bit bigger than the pilot hole, bend washer into a 'U' shape.
Put washer on bolt, then the nut.
Put the assembly into hole, once the washer is through the hole pull the bolt back and the washer should sit against the back of the bearing.
Tighten bolt until it it starts to bottom out against the flywheel at which point the bearing should pop right out.
Have a Beer.
05-26-2006, 08:12 PM
#21
Racer
Join Date: Jul 2004
Location: Princeton, NJ, USA
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Awesome "invention", the only thing is that pics don't show up...
However, I have a question, how do you get a new bearing in?
Don't you need to press it in?
Thanks,
Klim
However, I have a question, how do you get a new bearing in?
Don't you need to press it in?
Thanks,
Klim
05-26-2006, 11:04 PM
#22
Captain Obvious
Super User
Super User
You can either use a pipe with the same diameter as the outside of the bearing race. OR a socket that has the same diameter. OR use the old bearing to tap in the new one. Heck even a piece of hardwood woudl do. The bearing should slide in with just a slight tapping with a hammer, but don't hammer the bearing directly. Use one of the options.
05-27-2006, 03:11 AM
#23
Rennlist Member
Clean up the crank I.D. where the bearing seats and wipe a thin coat of gear oil in the pocket with a rag before you put the new bearing in, you'll be glad you did next time it needs changing...
05-27-2006, 10:32 AM
#24
Racer
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Thanks guys!
I was just scared becouse I read it has to be PRESSED in and thought it should be more complicated then like a seal or something....fortunately it is not!
Thanks,
Klim
I was just scared becouse I read it has to be PRESSED in and thought it should be more complicated then like a seal or something....fortunately it is not!
Thanks,
Klim
05-27-2006, 03:39 PM
#25
Burning Brakes
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Originally Posted by UKKid35
It's the membership that's gone...
Hence signature and pics are no longer available
Hence signature and pics are no longer available
Original instructions:
Originally Posted by JKelly
I used a decent sized square bolt, drilled a hole through the metal shims to attach a carriage bolt, and ground the head of the carriage bolt to where it just fit through the pilot bearing. I used a nut to grip the pilot bearing and turned the two square bolt nuts to apply force evenly on either side until the bearing popped out. Piece of cake 
Originally Posted by JKelly
The pull is slightly off-center and the nut keeps the pull on the bearing as square as possible, plus it keeps the carraige bolt from slipping; that way you don't have to have your other hand up there trying to use a screwdriver or vice grips to keep the carraige bolt wedged into place. The nut doesn't have to be tightened much.
Step 1. Put the carraige bolt and nut on the bearing.
Step 2. Slide the square bolt on and spin the other nut on to hold it.
Step 3. Turn the square bolt nuts, alternating sides, until the bearing pops out.
When the bearing gets close to popping out, be sure to hold the square bolt; otherwise it may surprise you and land on your face
like it almost did mine.
Step 1. Put the carraige bolt and nut on the bearing.
Step 2. Slide the square bolt on and spin the other nut on to hold it.
Step 3. Turn the square bolt nuts, alternating sides, until the bearing pops out.
When the bearing gets close to popping out, be sure to hold the square bolt; otherwise it may surprise you and land on your face
like it almost did mine.