Author Topic: Maico AW swing arm swingarm bearings 1977  (Read 2750 times)

0 Members and 1 Guest are viewing this topic.

Offline Husabergpete

  • Legend
  • *****
  • Posts: 561
    • View Profile
Maico AW swing arm swingarm bearings 1977
« on: December 18, 2012, 09:20:53 pm »
For the record.

The needle bearings x 2 that fit the AW 1977 (likely the 76 too) bearing number is HK2030.

And they are a bit of a nightmare to get out cleanly.  Suggest soaking for a day or more before trying to tap through. Issue when the soft lip folds over flat......

Pete
KTM 250 1980,  Maico 250 AW 1977, Husqvarna CR 430 1981, , CZ 250 1973 and a 550 Husaberg

Offline JohnnyO

  • Legend
  • *****
  • Posts: 4658
  • Qld
    • View Profile
Re: Maico AW swing arm swingarm bearings 1977
« Reply #1 on: December 18, 2012, 10:24:42 pm »
Thanks for the info.

Offline Mick D

  • Legend
  • *****
  • Posts: 2915
    • View Profile
Re: Maico AW swing arm swingarm bearings 1977
« Reply #2 on: December 18, 2012, 10:51:26 pm »
For the record.

The needle bearings x 2 that fit the AW 1977 (likely the 76 too) bearing number is HK2030.

And they are a bit of a nightmare to get out cleanly.  Suggest soaking for a day or more before trying to tap through. Issue when the soft lip folds over flat......

Pete

Hi Pete, for the record, they don't tap through mate. There is a internal machined shoulder on the AW's that the soft side of the bearing is positioned against. You need to push them out from the other side or withdraw them with a collet puller set. If you have tried to push them "through"? Wellll,,, then you have fuked it and in turn made what is to come, very difficult for your self.

An expanding collet puller, attached to a sliding hammer of course.

Bang Bang, straight out.

I supplied Lozza with one of these "Toledeo" sets a few years back for $137.50, but in actual fact that set retails for $300, and I am unable to do that again at this time. Probably one of the best tool sets you can buy, if working on motorcycles. If you dont want to do that? I can post you just the one you need. And you can post it Straight back. You can get cheaper sets these days, but the Toledeo has replacement parts and collets.

But then again if you have already destroyed the inner soft lip??????????

You could have just used a substantially thick flat washer of the correct OD to match the inner shoulder relieved dimension, with two ground flats on it. That way it fits through the ID of the bearing on the opposite side then drop it through to the inner soft bearing shoulder of the opposite bearing and press each of them out, in turn. Have you actually got them out yet Pete?
"light weight, and it works great"  :)

Offline Davey Crocket

  • Legend
  • *****
  • Posts: 4408
    • View Profile
Re: Maico AW swing arm swingarm bearings 1977
« Reply #3 on: December 18, 2012, 10:55:09 pm »
I also find doing alot of that type of work if you use a heat gun it seems to help alot......in and out.
QVMX.....Australia's #1 VMX club......leading the way.

Offline firko

  • Superstar
  • ******
  • Posts: 6578
    • View Profile
Re: Maico AW swing arm swingarm bearings 1977
« Reply #4 on: December 19, 2012, 09:04:05 am »
I bought one of these el-cheapo bearling remover kits from Torpedo 7 and at only $40 it's paid for itself already.
                                                          http://www.torpedo7.com.au/products/T7TO4N0BE/title/torpedo7-bearing-remover-set---9-pcs
                                                             
                                                                     
« Last Edit: December 19, 2012, 09:09:47 am by firko »
'68 Yamaha DT1 enduro, '69 Yamaha 'DT1 from Hell' '69 DT1'Dunger from Hell, '69 Cheney Yamaha 360, 70 Maico 350 (2 off), '68 Hindall Ducati 250, Hindall RT2MX, Hindall YZ250a , Cycle Factory RT2MX flat tracker, Yamaha 1T250J, Maico 250 trials, '71, Boyd and Stellings TM400, Shell OW72,750 Yamaha

Offline paul

  • Legend
  • *****
  • Posts: 4957
    • View Profile
Re: Maico AW swing arm swingarm bearings 1977
« Reply #5 on: December 19, 2012, 09:47:32 am »
the set that mick has mentioned is on the site as well for 99.00
http://www.torpedo7.com.au/products/T7TO4N0BL/title/torpedo7-blind-bearing---bushing-remover-set

Offline firko

  • Superstar
  • ******
  • Posts: 6578
    • View Profile
Re: Maico AW swing arm swingarm bearings 1977
« Reply #6 on: December 19, 2012, 10:19:58 am »
The $99 bearing removal slide hammer kit Paul posted the link to........
                                                                         
'68 Yamaha DT1 enduro, '69 Yamaha 'DT1 from Hell' '69 DT1'Dunger from Hell, '69 Cheney Yamaha 360, 70 Maico 350 (2 off), '68 Hindall Ducati 250, Hindall RT2MX, Hindall YZ250a , Cycle Factory RT2MX flat tracker, Yamaha 1T250J, Maico 250 trials, '71, Boyd and Stellings TM400, Shell OW72,750 Yamaha

Offline Husabergpete

  • Legend
  • *****
  • Posts: 561
    • View Profile
Re: Maico AW swing arm swingarm bearings 1977
« Reply #7 on: December 20, 2012, 03:34:33 pm »
Firko and boys,  I can feel a Christmas Present coming on.

We now have both these little stinkers out of the swingarm.  The first one taped out cleanly, but the other one inverted itself and didn't want to play at all. Fine grind work by the eagle eyed son fixed it. Firko you are 100% right about the soft lips....

Anyway any tips of popin them back in???

Both sitting in the freezer all greased up at the present.

I do love the sound and look of that bearing puller. The Maico engine has some a blind needle bearing that made me swear, think and swear some more.

All the best boys
KTM 250 1980,  Maico 250 AW 1977, Husqvarna CR 430 1981, , CZ 250 1973 and a 550 Husaberg