View Full Version : ATC 90 brake drum removal?
Rebuilding a 78 atc 90, Took off the 2 big axle bolts, removed the drum cover. How do I remove the drum without damaging anything? Do I need some kind of puller or what? Thanks in advance for any help.
ngunter2
02-10-2013, 04:25 PM
Is it stuck? or rusted in there? Put up some pictures
KI4UJO
02-10-2013, 05:08 PM
Easiest way is usually to Soak with PB, then take off the chain/chain cover (If yours is still there, most aren't),and reattach the hub on the drum side and tighten it down. Last, whack the center of the hub with a rubber hammer until the axle pops out. It's also a good time to do your rear bearings.
"Is it stuck? or rusted in there? Put up some pictures"
Prolly a bit of both. Thing has been sitting for years. Motor is half torn apart on my work bench, carbs and other miscellanius parts are in two boxes under work bench, working on the rest of the tear down now, hoping to get it going by spring for the "kids" to play with. Will post some pics later when I get back to the garage.
Easiest way is usually to Soak with PB, then take off the chain/chain cover (If yours is still there, most aren't),and reattach the hub on the drum side and tighten it down. Last, whack the center of the hub with a rubber hammer until the axle pops out. It's also a good time to do your rear bearings.
cool, thanks, planned on disassembling ad going through entire rear end anyway.
trike savior
02-10-2013, 06:35 PM
if rubber mallet doesnt work use block of wood and decent sized steel hammer. put the back of the frame up against work bench or something so it doesnt move. just do not hit threads with a steel hammer it will mushroom or ruin threads.
KI4UJO
02-10-2013, 08:11 PM
Trust him. Ask me how I know...
Howdy
02-10-2013, 08:47 PM
Did you remove the O-ring on the axle? Honda put a o-ring on the axle inbetween the nuts and brake drum. Once tightened down the o-ring will slip into the begining of the drum. The o-ring helps keeps water, dust and dirt out of the splines. It will also bind up the drum onto the axle and can make it a real pain to remove the drum unless you remove it first. I have had many people bring machines to me because they couldn't get the drum off. 5 minutes later the o-ring was removed and the drum just slid off. This didn't work on all of them, but a lot of them it did.
Howdy
Did you remove the O-ring on the axle? Honda put a o-ring on the axle inbetween the nuts and brake drum. Once tightened down the o-ring will slip into the begining of the drum. The o-ring helps keeps water, dust and dirt out of the splines. It will also bind up the drum onto the axle and can make it a real pain to remove the drum unless you remove it first. I have had many people bring machines to me because they couldn't get the drum off. 5 minutes later the o-ring was removed and the drum just slid off. This didn't work on all of them, but a lot of them it did.
Howdy
Did'nt see o-ring, probally wont get out to garage until about wedensday, will check it out, thanks!
trike savior
02-12-2013, 02:37 AM
hes right
ive ran into that little trailprotrailprotrailprotrailprotrailprotrailprotr ailpro o-ring before. but only once, it was one of the first things people left off when they worked on bike. you should be able to see it or parts of it by looking between axle and drum. if its not there then the rust it was supposed to keep out is your problem. then your back to beating the tar out of it. just remember to use a piece of wood to save threads.
get angry with it if you have to
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