front wheel bearings
Post Reply    Forum -> MP3 Discussion Previous12
Author Message
Hooked
2008 MP3 400
Joined: 19 Feb 2015
Posts: 395
Location: Fort Collins, Colorado
Mon Feb 10, 2020 4:55 pm quote
Since others will see this I want to point out

- the front sealed bearing comes out first towards the front.
You need a good circlip tool and remove that first.
-then you remove the backside roller bearing from the back.
That same tool should work or a punch.
-the front bearing is then driven in from the front, it seats.
Then you put that circlip back in to secure it in place.
-then that backside roller bearing goes in the 4mm depth like we talked about
-then the seal

I would lube at each step vs waiting to the end to attempt to get lube in there with a pinkie. Maybe Italians have skinny fingers?

I would have the dry roller bearing fully lubed before I drove it in.

We discussed the grease in the cavity idea already

- lightly grease the shaft
- then put the hub on and torque the nut down
-then put the outer lock piece and thru cotter pin on to secure it in place. Maybe a new cotter pin too.

- then brake calipers and wheel back on.

I hope this helps others! Thanks man.
Hooked
2009 MP3 400
Joined: 11 Jun 2007
Posts: 197
Location: Sayre, PA
Mon Feb 17, 2020 5:21 am quote
The video is up --> https://youtu.be/HxS3xyhb-nQ

Longer than I would have like, but it follows the process.
Hooked
2008 MP3 400
Joined: 19 Feb 2015
Posts: 395
Location: Fort Collins, Colorado
Mon Feb 17, 2020 9:37 am quote
Nice work, thanks.

So it looks like there is also another seal on that inner hub / shaft unit to keep dirt away?
Hooked
2009 MP3 400
Joined: 11 Jun 2007
Posts: 197
Location: Sayre, PA
Mon Feb 17, 2020 3:12 pm quote
Yes there is a big diameter seal that keeps dirt from entering that hub cavity.
Hooked
2008 MP3 400
Joined: 19 Feb 2015
Posts: 395
Location: Fort Collins, Colorado
Mon Feb 17, 2020 5:32 pm quote
pmatulew wrote:
Yes there is a big diameter seal that keeps dirt from entering that hub cavity.
Is that worth replacing while in there?
No sure I see it on the fiche.
Hooked
2009 MP3 400
Joined: 11 Jun 2007
Posts: 197
Location: Sayre, PA
Tue Feb 18, 2020 5:10 am quote
I didn't bother to change mine. They looked okay.

I think they are part #177494 on the fork components fiche. (46X56X4) SEAL FOR FRONT CALIPER BRACKET - 20MM FORK
Addicted
2010 gts 300 super. 09 MP3 500 lite
Joined: 02 Apr 2013
Posts: 591
Location: tampa
Thu Jun 25, 2020 1:46 pm quote
I want to clear up some confusion on the needle bearing part numbers. there are actually three needle bearing if you want to do a thorough job here. the hub has one needle bearing hk2016. but there are also two more needle bearings in the other part of the hub hk2212. the bearing shaft is free to spin in all three needle bearings.

so for one wheel you need:

hk2016 = hub needle bearing
6202 = hub roller bearing
seal 177443 = small hub seal for hub needle bearing

hk2212 x2 = caliper bracket bearings

Last edited by jerryd on Fri Jun 26, 2020 5:23 am; edited 1 time in total
Hooked
2009 MP3 400
Joined: 11 Jun 2007
Posts: 197
Location: Sayre, PA
Fri Jun 26, 2020 3:31 am quote
So where did you find an additional needle bearing? (parts diagram reference?)

The wheel hub on the 400 only had the outer roller bearing and the single inner needle bearing. Did they add a 2nd needle bearing on the 500's?

Or are you talking about the needle bearings in the suspension arm?
Ossessionato
Gilera Fuoco 500ie
Joined: 11 Oct 2009
Posts: 4174
Location: Netherlands Olst
Fri Jun 26, 2020 4:18 am quote
jerryd wrote:
I want to clear up some confusion on the needle bearing part numbers. there are actually three needle bearing if you want to do a thorough job here. the hub has one needle bearing hk2016. but there are also two more needle bearings in the other part of the hub hk2212. the bearing shaft is free to spin in all three needle bearings.

so for one wheel you need:
hk2016
hk2212 x2
6202
seal 177443
Addicted
2010 gts 300 super. 09 MP3 500 lite
Joined: 02 Apr 2013
Posts: 591
Location: tampa
Fri Jun 26, 2020 5:19 am quote
pmatulew wrote:
So where did you find an additional needle bearing? (parts diagram reference?)

The wheel hub on the 400 only had the outer roller bearing and the single inner needle bearing. Did they add a 2nd needle bearing on the 500's?

Or are you talking about the needle bearings in the suspension arm?
there are bearings in the caliper support bracket. the brake caliper floats on the same bearing shaft. my rotors make rub noises after cornering. most likely these bearings wont need to be replaced. but if there is play in them the caliper would have the same play.
Hooked
2009 MP3 400
Joined: 11 Jun 2007
Posts: 197
Location: Sayre, PA
Sat Jun 27, 2020 3:20 am quote
So....huh, I guess I learned something new. In the diagram part number 37 is listed as Piaggio #177436 which translates to a 22x28x12 needle bearing "drawn cup", or #HK2212

I guess I never figured that the hub casting would need to move separately from the spindle assembly. Will have to take another look.

If that bearing got weird the wheel would still run true on the spindle but the caliper and whatever else is attached to the outer casting might wobble.

front hub snip.JPG

Team Scooter Trash for Petfinder Foundation   vespa scooterwest scooter west Motorsport Scooters   Cool Ass scooter seat cover
Post Reply    Forum -> MP3 Discussion Previous12
[ Time: 0.1441s ][ Queries: 27 (0.0354s) ][ Debug on ]