K11 Owners Group

brendan1977 · Joined: 20 Jun 2014 Posts: 3

I have been told by the dealer my motor has a lot of wear and scoring specifically in the #4 cylinder. He said it is no repairable...This bike has only 25000 miles on it. I am perplexed how this could happen...I have put a lot of money into this bike already....any suggestions..I am also a noob.[/quote]

Scott_Anderson · Posted: Fri Jun 20, 2014 9:44 pm Post subject:

OK, I'll ask, what were the symptoms(problems) that had you take it to the dealer in the 1st place.
The cylinder walls are pretty tough(nickasil coated), so tough that it's a waste of time/money to try and bore one out. To that end, I find it hard to believe that it could get scored with just piston ring wear after only 25K miles.......... especially when these engines can go 200K miles +

BTW, Welcome to the OG forum....
_________________
Ride safe.

1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)

Flying Duck · Posted: Fri Jun 20, 2014 10:40 pm Post subject:

Where are you located?

If the cylinder is bad then your best option is probably to swap in a used motor.

How did the dealer determine that the cyl wall is scored? Did they take the head off and inspect it?

That's crazy low miles for something like that to occur.
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

Number 6 · Posted: Sat Jun 21, 2014 12:01 am Post subject:

Same question: what are the symptoms?
25K is not even broken in...
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I am not a number, I am a free man.

94 K1100LT

hfxrzw · Mad Brick Rider Joined: 30 Jan 2009 Posts: 78

I've never heard of any of these engines being worn out, I have seen pictures of an engine that had run over 300K miles and you could still see the honing marks in the bores. Unless you've suffered a broken valve or similar I think someone is 'slightly' off here.....
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Cheers, Rene

Greetings from Florida.

BMW K100 '85

brendan1977 · Joined: 20 Jun 2014 Posts: 3

I am located in Roseville, CA....I have been bringing the bike to A&S BMW for the last 3 years....I have bought new tires, brakes, seat, fuel pump, battery, clutch, transmission, replaced fuel lines and several hoses...I am the third owner since 95...I have the information on the previous phone numbers and addresses of them. I try not to be the paranoid type...but they are not giving me much of an answer or explanation....and I think that they may be screwing me.

Number 6 · Posted: Sat Jun 21, 2014 4:55 pm Post subject:

So you should ask for more information, what is wrong with #4? Low compression? Valves?
Anything is reparable on this bike, worse case an engine swap is doable, you can find a used engine in good condition for a fair price, labor is more of an issue.
_________________
I am not a number, I am a free man.

94 K1100LT

Scott_Anderson · Posted: Sat Jun 21, 2014 6:15 pm Post subject: Re: 1995 k1100lt motor rebuild

dave n · Posted: Sat Jun 21, 2014 8:18 pm Post subject:

How does it run/ride?
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Dave Norris KOG 248
1999 Cagiva Gran Canyon
1993 K1100LT w/Hannigan sidecar
2008 Suzuki DR650

Flying Duck · Posted: Sun Jun 22, 2014 12:01 pm Post subject:

I've usually heard that A&S has a good reputation from the CA K owners I've talked to.
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

brendan1977 · Joined: 20 Jun 2014 Posts: 3

They have taken the head off...I have seen the inside of the cylinders specifically the #4....they did a compression test before..which indicated #4 had an issue....the bike rode great ( some power loss and constantly filling oil)...They were trying to get me to buy another bike...they gave zero explanation as to the cause of the wear in the cylinder s and reported all had some wear including pistons rings etc...but reaffirmed the main issue was the scoring in the cylinders specifically #4. A friend asked with all of their expertice why is it impossible to address the fact that my water cooled bike was not cooling effectively maybe even has a defective thermostat...leading to an extremely hot engine block...where the pistons rings cylinders etc...expand contract and caused scoring??? My guess is they don't discuss that until I've spent more money replacing the motor and then " oh by the way your cooling system needs fixin".

Flying Duck · Posted: Sun Jun 22, 2014 3:00 pm Post subject:

What has been the behavior of:

a) Temp gauge
b) Fan
c) Overheat light coming on
d) Radiator cap "blowing"

If c and d aren't occurring than it's not heating up enough to cause engine damage.

Maybe some crap fell into the #4 cyl at the factory??? (Although I've never hear of that happening on a K1100.)
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

Scott_Anderson · Posted: Sun Jun 22, 2014 5:24 pm Post subject:

Ok, shot in the dark here......broken piston ring? cause scoring, low compression, oil use/consumption?

I suppose it's possible, after all I had 2 burnt valves at 25K on my '97......
_________________
Ride safe.

1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)

abreeze · Posted: Sun Jun 22, 2014 8:12 pm Post subject:

Just buy a new engine, put in a 1200 wile your at it...

http://www.beemerboneyard.com/coen.html

Flying Duck · Posted: Sun Jun 22, 2014 8:40 pm Post subject: