Siebenrock clutch for LT - BMW Luxury Touring Community
 
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post #1 of 13 Old Jul 22nd, 2012, 6:38 pm Thread Starter
cws
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Siebenrock clutch for LT

Ordered one of the Siebenrock oil-resistant clutch disks from Germany, 'cause I know I'm going to wear out this disk at some point.
Good time to do it now, because the Aussie is so strong against the Euro (Au$1 ~ 0.85 Euro).
Order specs online at Siebenrock were:
1 pc. * 2122456 * Clutch disc oil-resistant K1200LT 1998-2008, 180mm TOURING * Euro 166,39
1 * 1444 g * Postage and packing Australia * Euro 27,85
total net€ : 194,24
which came to : AU$229.83 plus a $6.89 bank foreign transaction fee.

I had to chase them up after a week because I'd gotten an email about the order, but no shipping notice or charge. 2 days later they shipped and emailed to advise.. just waiting for it to arrive.

Chris
Sydney, NSW
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post #2 of 13 Old Jul 23rd, 2012, 8:11 pm
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Re: Siebenrock clutch for LT

You are getting brave

I ordered my EBC rear rotor (finally). Hopefully it will arrive this week.

2005 K1200LT, Light Yellow Metallic
Ulysses member #60049
Fixed the cowbell replaced quick disconnects replaced stereo x 2 installed Trunk
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post #3 of 13 Old Jul 23rd, 2012, 8:13 pm Thread Starter
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Re: Siebenrock clutch for LT

I never said I was going to put it in....
... but that depends on how long this one takes to go.

Did you order new rear pads too?

Chris
Sydney, NSW
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post #4 of 13 Old Jul 23rd, 2012, 8:17 pm
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Re: Siebenrock clutch for LT

Quote:
Originally Posted by cws
Did you order new rear pads too?
Aww ya neva said I had to do that! Now I have to save up for them

2005 K1200LT, Light Yellow Metallic
Ulysses member #60049
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post #5 of 13 Old Jul 23rd, 2012, 9:52 pm
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Re: Siebenrock clutch for LT

So what's the advantage of the oil resistant clutch Chris ? If oil gets on it, the clutch will still slip, a given I presume. So the clutch plate will then need to be removed to fix the leaking oil seal and de-oiled to prevent slippage in the future. I guess my real question is, how will the clutch either not slip with oil present, and if it does slip, won't heat be the killer of it anyway ? Does anyone have experience with obvious benefits proven by this clutch under failure conditions ?

Dennis
1987 Yamaha TY250R
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1988 K100RT (the pack horse)
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post #6 of 13 Old Jul 24th, 2012, 2:19 am Thread Starter
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Re: Siebenrock clutch for LT

Read the many threads on "Siebenrock" and you tell me Dennis.. seemed like a good idea while our $$ is so hot.
I'm pretty sure I have a clutch plate that is not completely happy after that big trip... I baby it at takeoff as it feels like it's starting to slip if I give it a little extra too quickly, but its not slipping in 5th as far as I can tell.
Burnt out my first one at 16k..... this one's at 90k+ on the bike.
Call it an insurance policy... if I've got it in the cupboard, my current clutch plate will last forever...

Chris
Sydney, NSW
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post #7 of 13 Old Jul 24th, 2012, 3:22 am
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Re: Siebenrock clutch for LT

Chris, I don't doubt that these are an excellent product, or they wouldn't (continue) to sell. I'm just really curious about the theory behind why they are better than a standard clutch plate when the leaking oil is really the problem. I guess from my industrial background I'm struggling with the oil on the clutch plate thing. I might do some more research, but hopefully I'll not need any sort of clutch plate for a long time yet. I do tend to baby the clutch on take-off, never revving it above 1500, less most of the time. Pretty good engine in that respect, doesn't easily stall, which will cause the big girl to lie down if it occurs, not good.

Dennis
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post #8 of 13 Old Aug 6th, 2012, 6:59 am Thread Starter
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Re: Siebenrock clutch for LT

Got my little "lucky" clutch plate today... arrived last week but I've been off work.
Surprised to see how little you get for your money with a clutch plate.
I'll tuck into bed in the cupboard of bits and pieces... and hopefully will never need it..... (wishfull thinking)

Chris
Sydney, NSW
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post #9 of 13 Old Aug 6th, 2012, 8:55 pm
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Re: Siebenrock clutch for LT

Chris, do you have a way of accurately measiring the new total thickness of the clutch plate ? (Vernier). From memory the K100 was 5.5 mm when new.

Dennis
1987 Yamaha TY250R
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post #10 of 13 Old Aug 6th, 2012, 8:58 pm Thread Starter
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Re: Siebenrock clutch for LT

Got an old micrometer-caliper at home (my dad was a mechanic in his younger years) that is still useful enough. I've been using it to check my brake rotors.
I'll try to measure it tonight.

Chris
Sydney, NSW
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post #11 of 13 Old Aug 7th, 2012, 3:43 am Thread Starter
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Re: Siebenrock clutch for LT

If i'm reading the caliper correctly, its about 0.242" which is around 6.15mm .....?

Chris
Sydney, NSW
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post #12 of 13 Old Aug 7th, 2012, 7:35 am
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Re: Siebenrock clutch for LT

Thanks Chris, I'll add that little detail to my files. I must admit I struggle with this clutch wear issue, but I guess if you look at the overall gearing in 1st, and the mass of the bike, that is in fact the answer/reason. The clutch is basically the same as a VW Beetle (type 1), and they never fail, but at a maximum 5500 rpm, the old VeeDub was pulling a wicked 25 mph, not 62 mph plus. So the gearing is always going to be the telling factor in that the clutch can get slipped for quite some seconds at a relatively high differential speed gainst the pressure plate and flywheel, and bingo, toasted clutch plate. Just like the V8 Supercars getting off the line, same problem, tall gearing in first.

Dennis
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post #13 of 13 Old Aug 7th, 2012, 6:29 pm Thread Starter
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Re: Siebenrock clutch for LT

Quote:
Originally Posted by K100Dennis
So the gearing is always going to be the telling factor in that the clutch can get slipped for quite some seconds at a relatively high differential speed against the pressure plate and flywheel, and bingo, toasted clutch plate.
BTDT within the first 16,000km on the bike .
It stinks when its burning!

Chris
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