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400ex rear hub+rotor

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Old 08-01-2008, 01:20 PM
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Default 400ex rear hub+rotor

Hey guys i just bought a 2003 400ex and I am trying to fix it up. I am trying to remove the old hub + rotor but I am not sure whats the best route to do it. If i remove (in the link below) #10 and #9 is that it? Schematic rear axle
 
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Old 08-01-2008, 01:27 PM
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Default 400ex rear hub+rotor

actually rear spindle and rotor its called :/ pardon my ignorance
 
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Old 08-01-2008, 02:09 PM
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Default 400ex rear hub+rotor

# 11 and 4 too, its a small snap ring, you will have to back off both locking nuts (9 / 10 ) and remove the clip with some snap ring pliers and a flat head screw driver (to help pop it off) you could probably use 2 screwdrivers 2 if you dont have the pliers.. Than 4/9/10 come off in one piece (9 and 10 are threaded onto 4)


GOOD piece of advice..

Since you are going that far.. I suggest removing and inspecting everything in that area..
Take the caliper off, the caliper mount (requires removal of a big ole snap ring)
Take the axle and its carrier out
Check all the seals / and o rings

check your bearings in your carrier (it slides out of the swingarm from the side you adjust chain tension on, its in side of there

Clean parts, GREASE the carrier / bearings

Put back togather with care

you will only need to reference the swing arm and axle schematics..

A dead blow rubber mallet is your friend, as is a smaller metal hammer and a small rod to tap with

WD 40 to help loosen and clean things, but dont spray it in where the bearings are

You can spray it where the carrier goes inside the swingarm, but not in the carrier its self, it will destroy the grease

I just did this whole job, and replaced o rings seals and bearings on my 300, takes a few hours if you have all the tools


good luck!
 
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Old 08-01-2008, 04:03 PM
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Default 400ex rear hub+rotor

ok i got the pieces all off but they are stuck between red part where wheel connects and swingarm..whats easiest way from here off..
 
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Old 08-01-2008, 04:11 PM
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Default 400ex rear hub+rotor

Be carefull, straighten out the cotter pin on the hub castle but.. tap it out..
if you break it, you HAVE to replace it with another cotter pin, or a real strong piece of metal that will fit in its place,

It took me a while with a bottle of freeze off and an impact hammer to get that 1 1/16 " bastard off, but once its off,
the hub slides right off
 
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Old 08-01-2008, 05:03 PM
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Default 400ex rear hub+rotor

ok i have spindle and #4, 9, 10, 3 5, dangling freely on the axle. Does the axle come off with them 2 round bolts that requires a 6 allen wrench to take off? I stripped both (who designs a round bolt without allowing a socket to go on?) so I was wondoring if there was another way or if thats only way to get off the free dnalging spindle and rotor?
 
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Old 08-01-2008, 05:21 PM
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Default 400ex rear hub+rotor

o ok yea the cotter pin ill go do that :/
 
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Old 08-01-2008, 08:46 PM
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Default 400ex rear hub+rotor

yeah, you arent taking anything all the way off without taking that hub off

Yeah, you have to loosen the allen bolts, thats what youd loosen to turn the carrier and tighten/loosen the chain, and to slide the carrier out

but to take the axle off, you just need to take that one wheel hub off, get a rubber mallet, start tapping, and it should slide out to the left
 
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