BMW K bikes (Bricks)

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1Back to top Go down   K1100 Valve Adjustments? Empty K1100 Valve Adjustments? Fri Apr 09, 2021 1:16 pm

patto1ca

patto1ca
New member
New member
Hi, All,

I've seen videos and read articles stating the K1100 valve clearances rarely, if ever, need adjustment.  In my case, when I checked, I found almost half of the clearances (44%) were too tight. As you might expect, there were more tight exhaust valves than intake valves. I think it has been around 20k miles since they were last adjusted. Is this unique?

    

2Back to top Go down   K1100 Valve Adjustments? Empty Re: K1100 Valve Adjustments? Fri Apr 09, 2021 2:01 pm

Point-Seven-five

Point-Seven-five
Life time member
Life time member
I would say it's unusual. I've had two bikes with 16 valve heads, and never had to change the buckets because of tight valves. One had 92,000 miles when I got it and 120,000 when I sold it. The one I have now has 42,000 miles, 10,000 of them mine.

My understanding is that the 16 valve heads have different seats that don't wear as bad as the earlier model heads. This is a very good thing because changing the buckets is a royal pain in the ass.


__________________________________________________
Present:
1994 K75RT
1991 K100RS


Past:
1988 K100RS SE
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

3Back to top Go down   K1100 Valve Adjustments? Empty Re: K1100 Valve Adjustments? Fri Apr 09, 2021 7:09 pm

Laitch

Laitch
Life time member
Life time member
patto1ca wrote:I found almost half of the clearances (44%) were too tight. Is this unique?
Two years ago, a guy on Motobrick had six valve clearances out of spec—mostly tight—in his 16V engine. The BMW bucket cam follower system holds adjustment much longer than its shim-over-bucket system but clearance should be checked occasionally as your experience indicates; however, there is nothing intrinsically wrong with your moto's engine just because it needs this adjustment.


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1995 K75 81,000 miles
K1100 Valve Adjustments? Usa-lo10
    

4Back to top Go down   K1100 Valve Adjustments? Empty Re: K1100 Valve Adjustments? Sat Apr 10, 2021 6:51 am

Arlina

Arlina
Moderator
Moderator
Had a K1100LT here, in top condition, former owner always brought the bike for service to the dealer.
The new owner didn;t have large pockets, and trust me, so he brought it to me.
12 valves out of range.
4 could be exchanged, 8 bought new at €29,50 .

I had more K 16V bikes here that needed adjustement.


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K1100 Valve Adjustments? Eu-log10  K1100RS/LT - R1200RT - R1100RS (RIP) - Cagiva SST 350 Ala Verde - K75LT project - K75 Schurgers - K75S
    

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