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Author Topic: Clutch Spline Lube Port?  (Read 10690 times)

Offline TimTyler

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Clutch Spline Lube Port?
« on: January 27, 2015, 10:28:41 AM »
I wonder if this port on the intermediate housing is for lubing the splines?

(original photo @ http://www.bskspeedworks.co.uk/downloads/K100_Racer_2013.jpg)
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Offline F14CRAZY

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Re: Clutch Spline Lube Port
« Reply #1 on: January 27, 2015, 10:48:08 AM »
Tap a grease zerk in the clutch hub...
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Offline wmax351

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Re: Clutch Spline Lube Port
« Reply #2 on: January 28, 2015, 09:43:33 AM »
Now that would be a very interesting ideal. Still would need to pull them out to disengage them though.
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Offline Scott_

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Re: Clutch Spline Lube Port
« Reply #3 on: January 28, 2015, 06:06:20 PM »
And someone to re-balance the clutch housing after installing the port.
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Offline TimTyler

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Re: Clutch Spline Lube Port
« Reply #4 on: January 28, 2015, 06:20:27 PM »
A zerk in the clutch disk would almost certainly cause a big balance problem and probably weaken the connection.

I don't see how an access hole/port in the housing would cause a balance problem though.

When the clutch lever is depressed the clutch disk would slide forward, away from the gearbox input shaft, exposing splines that could be lubed through the port, no?  :dunno
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Offline Scott_

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Re: Clutch Spline Lube Port
« Reply #5 on: January 28, 2015, 08:04:20 PM »
Quote from: TimTyler on January 28, 2015, 06:20:27 PM
A zerk in the clutch disk would almost certainly cause a big balance problem and probably weaken the connection.

I don't see how an access hole/port in the housing would cause a balance problem though.

When the clutch lever is depressed the clutch disk would slide forward, away from the gearbox input shaft, exposing splines that could be lubed through the port, no?  :dunno

True, as long as you aren't adding any mass to the rotating parts, balance won't be an issue....

Although, even with the clutch pressure released, I can't imagine the friction disk having any more than maybe 1/8"(if even that much) free travel on the input shaft. Not a lot of room to try and put any grease in there, let alone getting any old grease/dirt out.
It would have been wonderful if the engineers would have designed a better way to lube the trans input shaft splines short of removing the entire assy to do it.....
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Offline TimTyler

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Re: Clutch Spline Lube Port
« Reply #6 on: January 28, 2015, 08:13:53 PM »
My clutch push rod moves about 1/4", maybe a little more, when the clutch lever is depressed. I wonder if it could be forced in further using a tool from the rear.

That's enough to goop up the splines a little, but you're right, not enough to do it right.
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Offline F14CRAZY

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Re: Clutch Spline Lube Port
« Reply #7 on: January 28, 2015, 09:40:59 PM »
Over the summer I had my trans off I dunno, 4-5 times...once you memorize the order to do things, have your tools laid out, and have saw horses cut to hold the rear of the bike, I found I could get the trans off in like an hour and 15 minutes  :mbird
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Offline TimTyler

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Re: Clutch Spline Lube Port
« Reply #8 on: January 28, 2015, 09:46:08 PM »
About the same for me.

It's getting it all back together properly torqued that takes me 3+ hours.
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Offline Scott_

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Re: Clutch Spline Lube Port
« Reply #9 on: January 29, 2015, 06:58:02 AM »
Quote from: TimTyler on January 28, 2015, 09:46:08 PM
About the same for me.

It's getting it all back together properly torqued that takes me 3+ hours.

I took me about that long to strip down the front of the engine to check valves and timing chain components.........from plastic to pencil.

Not counting the extra time chasing down the stray e-clip that wanted to play hide-n-seek...... :yow
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Offline F14CRAZY

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Re: Clutch Spline Lube Port
« Reply #10 on: January 29, 2015, 09:20:18 AM »
It looks like the cover has rivets
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Offline TimTyler

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Re: Clutch Spline Lube Port?
« Reply #11 on: January 29, 2015, 12:07:57 PM »
I contacted BSK and they replied "... its an air intake to let some cool air blow into the clutch. There is also a big hole at the bottom to let the air out."
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Offline F14CRAZY

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Re: Clutch Spline Lube Port?
« Reply #12 on: January 29, 2015, 06:44:46 PM »
I guess I didn't look at it that closely...is it more like an air scoop than a cover?
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Offline bocutter Ed

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Re: Clutch Spline Lube Port?
« Reply #13 on: January 29, 2015, 07:05:20 PM »
Quote from: TimTyler on January 29, 2015, 12:07:57 PM
There is also a big hole at the bottom to let the air out.

Anyone else get a good chuckle out of that ... ?
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Offline JcJ TN K75s

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Re: Clutch Spline Lube Port?
« Reply #14 on: May 16, 2015, 06:40:02 PM »
I am jealous of that skid plate.  Bet whatever I find in the scrap pile to make mine out of won't shine like that. :yes
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Offline F14CRAZY

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Re: Clutch Spline Lube Port?
« Reply #15 on: May 17, 2015, 06:13:44 PM »
Has anyone ever thought of putting an access port and a grease zerk in the clutch hub?
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Offline johnny

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Re: Clutch Spline Lube Port?
« Reply #16 on: May 17, 2015, 08:10:37 PM »
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