K11 Owners Group

[granth]

I have a late '93 model k1100rs with ABS 11.
Yeterday I tried to adjust the Sensor gap,having changed the front wheel.However the Sensor is "Welded" into its hole and will not budge,I tried quantities of release agent ,over several hours and some gentle and not so gentle (unfortunately !) persasion,no go it is stuck fast.Appears to be just corrosion between the sensor body and the fork Aluminium.The application of heat ,from an electric heat gun, made no difference.
In the process I damaged the sensor outer body.(doh!)

Fortunately a subsequent ride indicated all is still functioning properly.

Should I need to remove the Sensor in the future is there any alternative to drilling it out thus destroying it ?
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1993(94 MODEL) K1100RS IN ASTRAL BLUE
2006 URAL 750CC DALESMAN SIDECAR OUTFIT,
RED AND CREAM.

[DaveVoorhis]

[jpberens1994K1100RS]

You guys ARE taking the little bolts out that hold it in right?
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1993 K1100RS that I'd rather be riding FAST!
2014 Moto Guzzi Norge

[granth]

[DaveVoorhis]

[jpberens1994K1100RS]

" Note that UK bikes are often ridden year-round - including the winter - through salt, wet, acidic grime and you-name-it. Corrosion is inevitable."

No wonder it won't come out!

I think you'll need to use a good penetrating oil made for rusted frozen bolts. Wrap an old towel around the back to protect the brakes & such, then coat it and let it sit. Repeat a few times to see if that will penetrate the corrosion.
It' s tempting to use force & pound on it, that usually will cause damage.

Try this.
After 2 or 3 penetrating oil overnight soaks, use a power sander. I have an old one that I have bolted a 1" thick block of Mahhogany to. Press the rapidly ocilating wood GENTLY to the senor a few times and escalate the pressure until it is free. It's like thousands of little hammer hits whwn you do this.
I've had good results on delicate car & MC parts using this method when two items are frozen together by corrosion or a disimaler metal reaction.

Once free & removed, you know how to prevent it. Use a little, VERY little Moly paste & rub into both surfaces.

Good luck!

And do let us know if you get it out & done up right.
JIC anyone else needs a good tip.
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1993 K1100RS that I'd rather be riding FAST!
2014 Moto Guzzi Norge

[Flying Duck]

Penetrating oil and heat.

Why not use anti-seize when replacing it?
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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

[Tim (Midland Section)]

One of mine was so siezed, it only came out in kit form Cost me £69 & that was about 3 years ago. IIRC the ally combined with salt, corroded so much that the sensor body was crushed concave. Even with the old one out, there was a lot of filing & scraping of Ally oxide before the new one would fit. I used plenty of Copperslip during assembly. Haven't had to touch one since.
I even made an extractor which used the sensor screw holes to try to push it out to no avail. IMHO, if it doesn't come out easy & it still works, leave the bugger in there & disconnect the cables under the tank, not so easy but a kin sight cheaper.
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Regards Tim,

Grey haired riders don't get that way by pure luck
1996 Guzzi Cali3 LAPD
1972 750 Commando
G6HRN
#485

[granth]

It has had nearly a week now soaking in various expensive and exotic release agents (including one loaned to me by an Aerospace engineer!)
Without the slightest improvement; heat made no differrence either.

I will try the "block of wood and oscillating sander" trick,more in hope than expectation as the damn thing is completly imoveable after a week of attempts.
I guess that I will leave it while it still works and just drill it out when the time comes,file out the hole back to standard and use antisieze compound on the replacement.
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1993(94 MODEL) K1100RS IN ASTRAL BLUE
2006 URAL 750CC DALESMAN SIDECAR OUTFIT,
RED AND CREAM.

[malcolmt]

Is it possible to fashion a "cup" around the screw to hold easing oil so its able to be slightly submerged. Just a thought.
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A Bike on the road is worth two
in the shed
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[granth]

[granth]

I have just looked up new replacement ABS Sensors for post July '93 ABS 11 bikes on two local (UK)dealer sites and the ABS Sensors bodies are made of High Impact Plastic, not the plated metal type currently on my bike.
That would certainly suggest that the problem of corrosion was recognised as an issue,at some stage ? Has anyone got these fitted already ???
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1993(94 MODEL) K1100RS IN ASTRAL BLUE
2006 URAL 750CC DALESMAN SIDECAR OUTFIT,
RED AND CREAM.

[drikko]

When I was doing my fork seals recently, it took me a long time to work out those little bolts weren't allen key bolts but torx! Unfortunately I wrecked one of them, had to hacksaw a groove and get it out with a impact driver. Allen key stainless were used to replace them.
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K1100RS '97
Laverda RGS 1000 '84
Jim Young Trailer Sailer 5.7M WB

DISCLAIMER:- Anything I say may have been when I was drunk so please don't take it personally.

'Bigamy is having one wife/husband too many. Monogamy is the same.'
Oscar Wilde

[granth]

I know what you mean,once a torx head is a little dirty and that small...

however don't feel too bad as despite having a high quality correct sized torx bit one of the little beauties was so corroded into the threads that I too had to resort to cutting a slot and despite copious amounts of WD40 ,et al it still required using a two foot large screwdriver with maximum effort to shift it(I am not a small bloke.) They are to be replaced with allen headed fasteners, as used elsewhere on the bike.
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1993(94 MODEL) K1100RS IN ASTRAL BLUE
2006 URAL 750CC DALESMAN SIDECAR OUTFIT,
RED AND CREAM.

[DaveVoorhis]

[granth]