BMW K bikes (Bricks)

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1Back to top Go down   Stripped valve cover thread Empty Stripped valve cover thread Tue May 29, 2018 6:35 pm

Packo

Packo
Silver member
Silver member
I have a couple of stripped threads in the bearing caps for the valve cover bolts
To insert the helicoil should I remove the bearing cap or do the job in situ ???
Thanks
Mike


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83 K100 HRD Outfit
77 R100RS
1992 K1100 Outfit
1983 K100
    

2Back to top Go down   Stripped valve cover thread Empty Re: Stripped valve cover thread Tue May 29, 2018 8:40 pm

Dai

Dai
Life time member
Life time member
You can do the job in situ - just pack a piece of cloth around the area to catch the swarf and be assiduous in cleaning it out afterwards. The other possibility if you prefer to remove the cap is to rotate the engine until that cylinder is at TDC on the firing stroke i.e. there's no pressure on the cam cap. The advantage of removing the cap is that it will be easier to get the drill in the correct position to clean the old threads. I think I'd go this route.

Also: be very, very, very careful because the cam caps are cast from mouldy cheese and the threaded area will break up at the slightest provocation.


__________________________________________________
1983 K100 upgraded to K100RS spec, 1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

3Back to top Go down   Stripped valve cover thread Empty Re: Stripped valve cover thread Tue May 29, 2018 10:00 pm

RicK G

RicK G
admin
admin
Sidecar Paul also designed this as a fix
Stripped valve cover thread Cam_bl10


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 2004 K1200GT 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

4Back to top Go down   Stripped valve cover thread Empty Re: Stripped valve cover thread Wed May 30, 2018 3:09 am

Packo

Packo
Silver member
Silver member
Thanks Dai & Rick, job done, removed caps and did it on the bench. Don't think it took much longer than doing it on the bike really


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

5Back to top Go down   Stripped valve cover thread Empty Re: Stripped valve cover thread Wed May 30, 2018 12:38 pm

Dai

Dai
Life time member
Life time member
@RicK G wrote:Sidecar Paul also designed this as a fix
Stripped valve cover thread Cam_bl10

Got that downloaded and saved...


__________________________________________________
1983 K100 upgraded to K100RS spec, 1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

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