New Wheel bearings

[justsomeguy]

I believe I need new rear wheel bearings for my ZZR250.

Are these an easy item to replace or is it better to get a shop to do it??

How much do bearings cost, where in Auckland do you recommend and how long do they take to replace (labour charges)??

Thanks for any advice.

JSG

[curious george]

It's very easy to get new wheel bearings.
Take it to the shop, if booked, I'd imagine they could do it in about 30mins-1hr?
*Point of opinion*-make sure they swap BOTH sides (or all bearings) even if "the left one felt ok, so we left it...)

It's not hard to to do yourself either. Once you have all tools and parts, allow 2 hrs if you haven't done it before.
Ring Nachi or Saeco (yellowpages) and quote the bearing code you will find on the side of your bearing. Should cost about $10-$15 each iirc...
You need a malet and a drift (big fuckoff piece of metal spike) and just bash 'em out.
DO NOT BASH THE NEW ONES IN! Never hit the inside of your new bearing, gently tap the outside untill it has reached home.
Most Clymer or Haynes manuals explain it very well, and have pics too.
If you can't find the manual for your bike, the next closest to it will describe the principle...
Have fun

[k14]

Do it yourself, pretty easy. Just need the tools to get your rear wheel out and then a punch to get the old bearing out. When I did it for my CBR250 it cost me around $15 per bearing from the bearing place, can't remember the name, look in the yellow pages and that was all I needed to buy. Get your current bearings out of the wheel and take them into the bearing place for replacements.

Timewise it would take you probably 2 or so hours, but a mechanic should be able to do it in 30 mins.

[justsomeguy]

It's very easy to get new wheel bearings.

OK thanks and how do I do this??

[sAsLEX]

OK thanks and how do I do this??

you ask someone to look at them to see if they will last till the next spanner evening! then buy your bearings and take them along!

[justsomeguy]

you ask someone to look at them to see if they will last till the next spanner evening! then buy your bearings and take them along!

I've asked erik and loosebruce and they both reckon they should have been changed ages before.....

Or could it be that my new tyres (2 weeks/500ks ago) were not put on properly??

[SixPackBack]

Don't even think about it JSG.....take it to the shop.
I am an Engineering Manager, and i would not service my own bikes. Unless you have full workshop facilities [you don't].Service manual [?]. A predispostion towards mechanical tinkering [ the fact you have to ask sez no]. And perhaps most importantly a death wish if it goes wrong, screams to meTake it to the shop

[justsomeguy]

Don't even think about it JSG.....take it to the shop.
I am an Engineering Manager, and i would not service my own bikes. Unless you have full workshop facilities [you don't].Service manual [?]. A predispostion towards mechanical tinkering [ the fact you have to ask sez no]. And perhaps most importantly a death wish if it goes wrong, screams to meTake it to the shop

Ok Mr. A - I hear you loud and clear. Will also listen to you and give ol' Kerry or Trevor a ring....

[justsomeguy]

Do it yourself, pretty easy. Just need the tools to get your rear wheel out and then a punch to get the old bearing out. When I did it for my CBR250 it cost me around $15 per bearing from the bearing place, can't remember the name, look in the yellow pages and that was all I needed to buy. Get your current bearings out of the wheel and take them into the bearing place for replacements.

Timewise it would take you probably 2 or so hours, but a mechanic should be able to do it in 30 mins.

Now what do mean per bearing?? I'm absolutely cluless - need educating.

30 mins?? So that would be like $30 and another $30 for the bearings....so that'd be bout $60??

[curious george]

Don't even think about it JSG.....take it to the shop.
I am an Engineering Manager, and i would not service my own bikes. Unless you have full workshop facilities [you don't].Service manual [?]. A predispostion towards mechanical tinkering [ the fact you have to ask sez no]. And perhaps most importantly a death wish if it goes wrong, screams to meTake it to the shop

Erm... I'd quietly second that in this case...

[FROSTY:Me]

with a bike like yours changing the wheel bearings is an easy job.
Get a fuck off big sledge hammer and hit the back rim really really hard.
Once you have removed the entire rear wheel give henty at takinini a yell and he will supply you a wheel with good bearings in it
Are ya sure the bearings are fucked ? could it be a fucked chain/sprockets

[justsomeguy]

with a bike like yours changing the wheel bearings is an easy job.
Get a fuck off big sledge hammer and hit the back rim really really hard.
Once you have removed the entire rear wheel give henty at takinini a yell and he will supply you a wheel with good bearings in it
Are ya sure the bearings are fucked ? could it be a fucked chain/sprockets

Rear wheel moves up and down and left and right when you hold it in your hands and try to shift it about.

Dont know about my chain and sprockets.... sprockets have a slight wear on them maybe 2mm of the U between two points is skewed.

LB also feels it's the bearings....

[FROSTY:Me]

seriously --remove rear wheel from the bike.remove sprocket.
sqirt a line of crc or similar around the outer rim of both bearings
go inside and have a cup of tea.
remove the first bearing by tapping through the axle spacer -dont worry about damaging the bearing-it will be hard to get out but the crc will make it come out a tadd easier. carefully note the position of any spacers between the bearings
clean up both bearings and take them to saeco bearings to match em up
keep the old bearings
a thin smear of grease around the outer edge of the new bearings will make them easier to fit.
get a socket that has an ID the same as the ID of the outer ring
push the first bearing into the beginnning of its mounting ring then use the socket and a hammer to tap the bearing into place -make sure its gone fully home.
Flip the wheel over and put all the spacers in the gap.
now tap the bearing into place and refit the wheel

[justsomeguy]

seriously --remove rear wheel from the bike.remove sprocket.
sqirt a line of crc or similar around the outer rim of both bearings
go inside and have a cup of tea.
remove the first bearing by tapping through the axle spacer -dont worry about damaging the bearing-it will be hard to get out but the crc will make it come out a tadd easier. carefully note the position of any spacers between the bearings
clean up both bearings and take them to saeco bearings to match em up
keep the old bearings
a thin smear of grease around the outer edge of the new bearings will make them easier to fit.
get a socket that has an ID the same as the ID of the outer ring
push the first bearing into the beginnning of its mounting ring then use the socket and a hammer to tap the bearing into place -make sure its gone fully home.
Flip the wheel over and put all the spacers in the gap.
now tap the bearing into place and refit the wheel

Thanks big T....

Uh I assume hub bearnings are the same as wheel bearings, as they are called hub bearnings in the manual.

I think since it's the first time I'll get Kerry or Trevor to do it and learn by looking at them.....

Lots of little bits and bobs and checks required ... especially the checking for roughness and binding, cleaning them with compressed air and the fact that I don't want to be playing with these crucial parts of my bike ......especially as 99% of my riding is out in the country in the middle of nowhere

[Dadpole]

especially the checking for roughness and binding, cleaning them with compressed air

Please tell me you will not clean a bearing with compressed air. If you do so be careful. I once saw someone spin up a bearing and drop it. Went around the workshop like a bullet. Pissed myself laughing as I legged it out the door.