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1Back to top Go down   Bell housing alternator bearing Empty Bell housing alternator bearing on Sun Jun 14, 2020 5:56 pm

smoll1

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Silver member
Silver member
Hi all,

I have a question hopefully someone might experienced.

I had to clean sprag clutch as stoped working was gunked up. Works fine now.

While I was in there I put new bearing and seal in bell housing. I used a normal 6004 c3 skf bearing. 

Put all back together and started sounded nice quite compared to old bearing. Ran it up road and after about 1/4 mile start making noise in bell housing area, so turned around and then few yards further the bike seized.

Luckily I have had loads two strokes years ago and still ride as habit with hand over clutch. I was on few yards from.home.

Took all.apart again and the bellhouse/alternator bearing has seized solid. Seems be no oil in the area as well.

This has baffles me and not sure if bearing faulty or I did something wrong.

Anyone have any ideas. How does this bearing normally get lubricated.

Plenty oil in bike as just put it in.

I have ordered a new bearing etc but don't want same thing to happen again.

The bearing is blue with the heat. I did not put any extra oil when I put in in. Should I have done this?

Any assistance I would be grateful.

Hopefully then I can get back on road in nice weather 😁

    

2Back to top Go down   Bell housing alternator bearing Empty Re: Bell housing alternator bearing on Mon Jun 15, 2020 7:29 pm

88

88
Life time member
Life time member
@smoll1 wrote:Hi all,

I have a question hopefully someone might experienced.

I had to clean sprag clutch as stoped working was gunked up. Works fine now.

While I was in there I put new bearing and seal in bell housing. I used a normal 6004 c3 skf bearing. 

Put all back together and started sounded nice quite compared to old bearing. Ran it up road and after about 1/4 mile start making noise in bell housing area, so turned around and then few yards further the bike seized.

Luckily I have had loads two strokes years ago and still ride as habit with hand over clutch. I was on few yards from.home.

Took all.apart again and the bellhouse/alternator bearing has seized solid. Seems be no oil in the area as well.

This has baffles me and not sure if bearing faulty or I did something wrong.

Anyone have any ideas. How does this bearing normally get lubricated.

Plenty oil in bike as just put it in.

I have ordered a new bearing etc but don't want same thing to happen again.

The bearing is blue with the heat. I did not put any extra oil when I put in in. Should I have done this?

Any assistance I would be grateful.

Hopefully then I can get back on road in nice weather 😁


__________________________________________________
Bell housing alternator bearing Ir-log11 88....May contain nuts!Bell housing alternator bearing Ir-log11

"The world is a book and those who do not travel read only one page." - St. Augustine from 1600 years ago & still true!

Bike: K100LT 1988. 0172363. AKA the Bullion Brick! Mods: k1100 screen and stands.
K1: 1990. 6374189. Custom Stealth Black paint.
    

3Back to top Go down   Bell housing alternator bearing Empty Re: Bell housing alternator bearing on Mon Jun 15, 2020 7:32 pm

88

88
Life time member
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I recently did the same job on the K1100LT Changed the bearing and seal but I did put a little oil around the bearing and spun just before mounting the the intermediate flange.. I have 300 plus miles up since without issue. I'm not sure the oil would have made that much difference as it was 2 weeks before I turned over the engine due to a major refurb of the bike. so the oil would have been wicking out.

Sounds like it could be an alignment issue. Was the bearing definitely seated square?


__________________________________________________
Bell housing alternator bearing Ir-log11 88....May contain nuts!Bell housing alternator bearing Ir-log11

"The world is a book and those who do not travel read only one page." - St. Augustine from 1600 years ago & still true!

Bike: K100LT 1988. 0172363. AKA the Bullion Brick! Mods: k1100 screen and stands.
K1: 1990. 6374189. Custom Stealth Black paint.
    

4Back to top Go down   Bell housing alternator bearing Empty Bell housing bearing on Tue Jun 16, 2020 12:28 pm

smoll1

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Silver member
Thanks for the reply.

I thought it was square.

When I put the new one in I will have to make sure it is.

I will then run the bike for a while before I ride it.

    

5Back to top Go down   Bell housing alternator bearing Empty Re: Bell housing alternator bearing on Wed Jun 17, 2020 2:15 am

gorio

gorio
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@88 wrote:


While I was in there I put new bearing and seal in bell housing. I used a normal 6004 c3 skf bearing. 

P
Feel free to correct me but isn't this bearing spec a sealed bearing? NBR seals I think which I believe are good for a about 100 degC.
Is it supposed to be an open oil bath bearing?


__________________________________________________
1992 K100rs 16v
2006 R1200rt
Past lives
Kawasaki Concours
1976 BMW R90s
1975 Ducati 860gt
1992 Honda VFR750
1985 Honda VF750
1982 Kawasaki 750GPZ
1975 Norton 850 Commando
    

6Back to top Go down   Bell housing alternator bearing Empty Bellhouse bearing on Wed Jun 17, 2020 4:19 am

smoll1

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Silver member
I did put open bearing in and I have ordered a new open bearing too which I hope will work this time.

I have checked everything else and nothing seems to be wrong.

I will go through all again and hopefully it will be running soon.
Very Happy

    

7Back to top Go down   Bell housing alternator bearing Empty Re: Bell housing alternator bearing on Wed Jun 17, 2020 2:06 pm

gorio

gorio
Silver member
Silver member
do you know the BMW part number off hand?


__________________________________________________
1992 K100rs 16v
2006 R1200rt
Past lives
Kawasaki Concours
1976 BMW R90s
1975 Ducati 860gt
1992 Honda VFR750
1985 Honda VF750
1982 Kawasaki 750GPZ
1975 Norton 850 Commando
    

8Back to top Go down   Bell housing alternator bearing Empty Re: Bell housing alternator bearing on Wed Jun 17, 2020 2:38 pm

Laitch

Laitch
Life time member
Life time member
@gorio wrote:do you know the BMW part number off hand?
Here's what MaxBMW's fiche offers up.


Bell housing alternator bearing Scree100

Bell housing alternator bearing Scree101


__________________________________________________
1995 K75 77,000 miles
Bell housing alternator bearing Usa-lo10
    

9Back to top Go down   Bell housing alternator bearing Empty Re: Bell housing alternator bearing on Wed Jun 17, 2020 3:41 pm

Dai

Dai
Life time member
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Out of curiosity, is it possible to read the bearing number in that picture Laitch? Looks like a 2004 or similar to me, but I can't read anything.


__________________________________________________
'83 K100 upgraded to K100RS spec, '87 K100RT
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California
    

10Back to top Go down   Bell housing alternator bearing Empty Re: Bell housing alternator bearing on Wed Jun 17, 2020 4:41 pm

gorio

gorio
Silver member
Silver member
All the bits and pieces in there in the right order? Looks like the right bearing. Just passing along ideas.

Bell housing alternator bearing Bearin11


__________________________________________________
1992 K100rs 16v
2006 R1200rt
Past lives
Kawasaki Concours
1976 BMW R90s
1975 Ducati 860gt
1992 Honda VFR750
1985 Honda VF750
1982 Kawasaki 750GPZ
1975 Norton 850 Commando
    

11Back to top Go down   Bell housing alternator bearing Empty Re: Bell housing alternator bearing on Wed Jun 17, 2020 5:45 pm

Arlina

Arlina
Life time member
Life time member
@gorio wrote:All the bits and pieces in there in the right order? Looks like the right bearing. Just passing along ideas.

Bell housing alternator bearing Bearin11

That's how I slam it together.
No bike complained, always running smoothly Smile


__________________________________________________
Bell housing alternator bearing Eu-log10  K1100RS/LT - R1200RT - R1100RS (RIP) - Cagiva SST 350 Ala Verde - K75LT project
    

12Back to top Go down   Bell housing alternator bearing Empty Re: Bell housing alternator bearing on Wed Jun 17, 2020 7:01 pm

Dai

Dai
Life time member
Life time member
Maybe they were too scared to complain? Bell housing alternator bearing 44271


__________________________________________________
'83 K100 upgraded to K100RS spec, '87 K100RT
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California
    

13Back to top Go down   Bell housing alternator bearing Empty Bellhouse bearing on Thu Jun 18, 2020 9:56 am

smoll1

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The bearing number I had was 6004

I have ordered one and expect it any day.

I will make sure I put back together and see what happens.

Hopefully was a one off.

Thanks for all suggestions.

It's raining today anyway so can't fix it anyway.

    

14Back to top Go down   Bell housing alternator bearing Empty Re: Bell housing alternator bearing on Fri Jun 19, 2020 1:01 am

Packo

Packo
Silver member
Silver member


__________________________________________________
______________
 
83 K100 HRD Outfit
77 R100RS
1992 K1100 Outfit
1983 K100
    

15Back to top Go down   Bell housing alternator bearing Empty Re: Bell housing alternator bearing on Fri Jun 19, 2020 5:17 am

Dai

Dai
Life time member
Life time member
@smoll1 wrote:The bearing number I had was 6004
That's what I actually meant to write, not 2004. Same size as the wheel bearing for the cast wheels on Tonti-framed Moto Guzzis. That's why I thought I recognised it.


__________________________________________________
'83 K100 upgraded to K100RS spec, '87 K100RT
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California
    

16Back to top Go down   Bell housing alternator bearing Empty Bell housing bearing on Sun Jun 21, 2020 11:17 am

smoll1

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Silver member
Silver member
Hi all just to update.

I stripped down the seized bearing to replace with a new one and found weird situation.

The thrust washer on end  of sprag clutch assembly had actually got so hot it melted to end of sprag clutch shaft and then snapped off. 

I have bought used complete assembly and will replace the whole lot.

Weird was not expecting that, oh well thought I would let everyone know.

I will keep updated once it all fixed Very Happy

    

17Back to top Go down   Bell housing alternator bearing Empty Re: Bell housing alternator bearing on Sun Jun 21, 2020 11:42 am

Laitch

Laitch
Life time member
Life time member
@smoll1 wrote:The thrust washer on end  of sprag clutch assembly had actually got so hot it melted to end of sprag clutch shaft and then snapped off. 
Part #2 in this diagram melted?
Bell housing alternator bearing Scree102


__________________________________________________
1995 K75 77,000 miles
Bell housing alternator bearing Usa-lo10
    

18Back to top Go down   Bell housing alternator bearing Empty Bell housing bearing on Sun Jun 21, 2020 1:44 pm

smoll1

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Silver member
Silver member
Yes number two in diagram. And it took tiny bit of shaft with it.

Very weird. But at least I found something wrong.

Nothing worse than trying work out what it is any just guessing.

I will.update when it is back together. Hopefully soon as missing summer.

    

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