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K100-forum.com » Technical, repair and troubleshooting » Engine and transmission » Cylinder head question

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1Back to top Go down   Cylinder head question Empty Cylinder head question Wed Jan 15, 2014 4:37 pm

ssj_Gill

ssj_Gill
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Good afternoon chaps,
i'm tearing into my K100LT engine with a furry the likes of which has never been seen before and like a class A dope i sheared one of the big bolts that hold the cylinder head to the main engine block. managed to get it out but now it needs replacing (as do many many other parts).

does anyone know the part number? or a place where i can find the part number?

thanks muchly

    

2Back to top Go down   Cylinder head question Empty Re: Cylinder head question Wed Jan 15, 2014 4:46 pm

92KK 84WW Olaf

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Don't kill yourself over it shearing, happens everyone and is much more common than you think. If that was my engine I would be replacing them all anyway, whether or not its recommended, due to the age of engine etc.

I don't have the part numbers though but I suspect you will need engine number and someone here will be able to give you the part numbers. Motoworks or Motobins can probably do it on the phone.

Have a look here, its on the Portal section of the forum.

http://www.realoem.com/bmw/select.do?kind=M&series=K589&arch=1


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 51,800 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

3Back to top Go down   Cylinder head question Empty Re: Cylinder head question Wed Jan 15, 2014 4:55 pm

mike d

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Hi,

Part number 11 121 454 069 from http://www.maxbmwmotorcycles.com/fiche/DiagramsMain.aspx?vid=51747&rnd=04302013

Can't see them on either the Motorworks or Motobinns sites.

Mike

    

4Back to top Go down   Cylinder head question Empty Re: Cylinder head question Wed Jan 15, 2014 4:58 pm

92KK 84WW Olaf

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Life time member
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Mike

That was fast. I got as far as finding the parts fiches. Would you go with replacing them all as a matter of interest?

Olaf.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 51,800 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

5Back to top Go down   Cylinder head question Empty :D Wed Jan 15, 2014 5:31 pm

ssj_Gill

ssj_Gill
active member
active member
cheers fella, top notch responses as always. i think my biggest bloody outlay is going to be replacing all the bolts on this rebuild Razz

    

6Back to top Go down   Cylinder head question Empty Re: Cylinder head question Wed Jan 15, 2014 5:42 pm

k75RT Keith

k75RT Keith
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For your rebuild, it's best to remember that the cylinders are nikasil and that honing is NOT recommended.  Scotchbrte pad works best

    

7Back to top Go down   Cylinder head question Empty Re: Cylinder head question Thu Jan 16, 2014 11:12 am

mike d

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Personally,  would.

Mike

    

8Back to top Go down   Cylinder head question Empty Re: Cylinder head question Thu Jan 16, 2014 1:16 pm

Rick G

Rick G
admin
admin
Very light with a medium grit and no oil or kero just run them under the hot water while you do it.
If they havent done many miles then not necessary but for the average K yes the bore can be so good and smooth that the rings will never bed.  BMW usually only deal with them in the warranty period


__________________________________________________
"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 1999 K1100 LT with a Big Block 1200
    

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