Spline Lube for LT clutch - BMW Luxury Touring Community
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post #1 of 12 Old Feb 18th, 2016, 8:05 pm Thread Starter
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Question Spline Lube for LT clutch

I have been plugging away on replacing the leaking transmission seal in my 2001 LT. I see the recommended spline lube is Optimoly MP3. When I did a search on that lube, I ran into a lot of dead ends. Is than something I need to buy from the dealer, or are there alternatives that will work. Thanks in advance to all.
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post #2 of 12 Old Feb 18th, 2016, 8:18 pm
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Re: Spline Lube for LT clutch

I use a very light coating of Honda Molly 60 and synthetic brake caliper lube (adds stickiness). Don't lube this like you would an airhead - it does not need it. Put the lube only in the input shaft and not on the disc. If you lube the disc the shaft will push it out where it can get on the friction material.
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John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #3 of 12 Old Feb 18th, 2016, 8:34 pm
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Re: Spline Lube for LT clutch

If you are looking for the PN for the optimol TA paste, it is 18 21 9 062 599 and is made by Castrol. It is a high temp lub/anti seize paste that helps to prevent fretting because these parts do not move much on themselves. There are other things such as John mentioned but if you are a stickler, you can order it if you want. Just don't use a molly based grease.

I ordered mine from MAX BMW. $30.98 for a 100 gram tube. Enough for 20+ clutch jobs.

Gordon
Sugar Hill, GA
2001 K1200LTI – Champagne (current ride) Lazy Susan
1998 R1100RT – Never should have sold it
1974 Yamaha TX 750 Twin. Omni Phase Balanced


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Last edited by bmwcoolk1200; Feb 18th, 2016 at 8:58 pm.
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post #4 of 12 Old Feb 19th, 2016, 2:00 pm
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Re: Spline Lube for LT clutch

Quote:
Originally Posted by bmwcoolk1200 View Post
Just don't use a molly based grease.
Just curious Gordon, why no Molly?

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #5 of 12 Old Feb 19th, 2016, 2:45 pm
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Re: Spline Lube for LT clutch

I like this stuff: https://guarddogmoly.com/product/gd-...ste-antiseize/

Paul Glaves recommended this to me. I have used it with good results.

Robert

They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.
Benjamin Franklin (1706 - 1790)


2000 K1200LT "Latifah"
1994 R1100RSL (wife's)
1981 R80GS
1976 R90S
1965 R80/2 Frankenbike (wife's)
2001 Bunkhouse LX (given to son)
2011 Bunkhouse Queen

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post #6 of 12 Old Feb 19th, 2016, 2:48 pm
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Re: Spline Lube for LT clutch

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Originally Posted by jzeiler View Post
Just curious Gordon, why no Molly?
John, what I meant was don't go buy a tube of molly wheel grease and think you have the right stuff. It is in no way comparable. Spline lubes are an EP anti seize compound because there is very little movement but extreme pressures that tend to fret. Going to stop there before I get in over my head. Molly is fine, just not molly wheel bearing grease is what I meant to say. Honda Molly 60 is used by many but I haven't seen it to compare with what I squeezed out of the Optimol tube. That stuff is silver in color and does look like an anti seize paste.

Gordon
Sugar Hill, GA
2001 K1200LTI – Champagne (current ride) Lazy Susan
1998 R1100RT – Never should have sold it
1974 Yamaha TX 750 Twin. Omni Phase Balanced


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post #7 of 12 Old Feb 19th, 2016, 7:37 pm Thread Starter
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Re: Spline Lube for LT clutch

Thanks for the advise. Looks like another trip to my local BMW dealer. I need a tire put on my back wheel so I'll do that tomorrow.
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post #8 of 12 Old Feb 19th, 2016, 8:28 pm
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Re: Spline Lube for LT clutch

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Originally Posted by Scouter-50 View Post
I like this stuff: https://guarddogmoly.com/product/gd-...ste-antiseize/

Paul Glaves recommended this to me. I have used it with good results.

Robert
He has recommended GD 525 in the past. I use it on the transmission and final drive splines on my K75 also with good results.

Ron
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post #9 of 12 Old Feb 19th, 2016, 10:00 pm
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Re: Spline Lube for LT clutch

Here are a couple pics of what you want to prevent by using a proper spline lube. These are out of a car and used without permission from a Toyota MR2 forum but i am not making any money off these so who cares It is also a public forum.
Attached Thumbnails
Click image for larger version

Name:	Fretting clutch.jpg
Views:	310
Size:	163.6 KB
ID:	98194   Click image for larger version

Name:	fretting splines.jpg
Views:	677
Size:	132.2 KB
ID:	98202  

Gordon
Sugar Hill, GA
2001 K1200LTI – Champagne (current ride) Lazy Susan
1998 R1100RT – Never should have sold it
1974 Yamaha TX 750 Twin. Omni Phase Balanced


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post #10 of 12 Old Feb 20th, 2016, 7:58 am
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Re: Spline Lube for LT clutch

Quote:
Originally Posted by beets View Post
He has recommended GD 525 in the past. I use it on the transmission and final drive splines on my K75 also with good results.
Ron, you are correct. I went out and looked at my jar and it was 525. Sorry for the lapse in memory.

The correct product is here: https://guarddogmoly.com/product/gd-...e-synthetic-2/

Robert

They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.
Benjamin Franklin (1706 - 1790)


2000 K1200LT "Latifah"
1994 R1100RSL (wife's)
1981 R80GS
1976 R90S
1965 R80/2 Frankenbike (wife's)
2001 Bunkhouse LX (given to son)
2011 Bunkhouse Queen

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post #11 of 12 Old Feb 20th, 2016, 5:38 pm
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Cool Re: Spline Lube for LT clutch

just to let know honda is stoping making there molly 60 if you find it buy it all. better than the bmw stuff. i use it in all the splines in my lt

03 k1200 ltc
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post #12 of 12 Old Feb 21st, 2016, 10:55 am
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Re: Spline Lube for LT clutch

True but it has been replaced with Molycoat 77 by Dow Corning. Contains >=50% < 70 % molly according to the MSDS.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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