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1Back to top Go down   swinging arm bearing inspection Empty swinging arm bearing inspection on Fri Nov 01, 2019 11:48 am

tinyspuds

tinyspuds
Gold member
Gold member
Having searched here, Clymer and YT, and being well past the age of embarrassment:
Before removing my swing arm I did the standard lateral movement test and it was rock solid.
However now I have the arm out I thought I’d do a visual check. I replaced the pivots and both bearings rock freely in their seats (couldn’t upload the mp4 but I do mean freely and you can hear them rattle).
I am running a biggish chair and just had to replace the front wheel bearings.

To my mind there is no question that they are shot to pieces, but they are so comically bad and show no movement with the arm in place I just wonder if I’m missing some intentional design feature.

So, simple question(s)
Should they rock in their seats?
The adjustable pivot had been PreviOusly red loctited in and I wonder if it might just have been torqued down so hard that it hid the in situ symptom. Possible?
Cheers all, Stu


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1985 BMW K100RT + Hedingham HUB and LL’s.
2007 HD883 Sportster. Bobbed and bettered.
1954 Royal Enfield 350 Bullet. Original.
    

2Back to top Go down   swinging arm bearing inspection Empty Re: swinging arm bearing inspection on Fri Nov 01, 2019 12:27 pm

charlie99

charlie99
VIP
VIP
likely the last person in there  forgot to grease them ?   and is a totally useless mechanic


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%Oswinging arm bearing inspection Au-log10

"redframe" rs "bitsa"  with many contributions from the k100 community ,,with many thanks
    

3Back to top Go down   swinging arm bearing inspection Empty Re: swinging arm bearing inspection on Fri Nov 01, 2019 12:32 pm

tinyspuds

tinyspuds
Gold member
Gold member
@charlie99 wrote:likely the last person in there  forgot to grease them ?   and is a totally useless mechanic
Not even close to the language I’ve been using Charlie  Evil or Very Mad .

So you agree: if they rock, they’re cock?


__________________________________________________
1985 BMW K100RT + Hedingham HUB and LL’s.
2007 HD883 Sportster. Bobbed and bettered.
1954 Royal Enfield 350 Bullet. Original.
    

4Back to top Go down   swinging arm bearing inspection Empty Re: swinging arm bearing inspection on Fri Nov 01, 2019 7:15 pm

charlie99

charlie99
VIP
VIP
they are a bevel roller bearing , so should move around a bit dry , its not until they are tightened that they mate home properly

to grease them , there should be a cup of alloy behind the bearing in the swing arm , place the right grease inside the centre core and use the pivot pin to pressure the grease home deep into the roller bearing , it should start working its way towards the front so that a little excess bleeds through the front cage - seal area when full .

hope that helps


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%Oswinging arm bearing inspection Au-log10

"redframe" rs "bitsa"  with many contributions from the k100 community ,,with many thanks
    

5Back to top Go down   swinging arm bearing inspection Empty Re: swinging arm bearing inspection on Sat Nov 02, 2019 4:21 am

tinyspuds

tinyspuds
Gold member
Gold member
Thanks Charlie, I’ll grease them up and put them back. Lots of copperslip on the pivots and no loctite should make any future replacement pretty straightforward compared to this time.
Now onwards to the clutch.


__________________________________________________
1985 BMW K100RT + Hedingham HUB and LL’s.
2007 HD883 Sportster. Bobbed and bettered.
1954 Royal Enfield 350 Bullet. Original.
    

6Back to top Go down   swinging arm bearing inspection Empty Re: swinging arm bearing inspection on Sun Nov 03, 2019 5:25 am

charlie99

charlie99
VIP
VIP
swinging arm bearing inspection 112350


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%Oswinging arm bearing inspection Au-log10

"redframe" rs "bitsa"  with many contributions from the k100 community ,,with many thanks
    

7Back to top Go down   swinging arm bearing inspection Empty Re: swinging arm bearing inspection on Sun Nov 03, 2019 7:29 am

Dai

Dai
Life time member
Life time member


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'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

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