wet and dry clutch. - Wrist Twisters
 
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post #1 of 11 Old 10-18-2010, 03:22 PM Thread Starter
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wet and dry clutch.

so while i was supposed to be learning something in on of my classes today i was think about wet and dry clutches. while think a question popped into my head and i thought i would ask on here to see if you guys knew. all the bikes i have had or ridden have had wet clutches, so my question is. do you use motorcycle oil in them or would car oil work? i know in a wet clutch that you can case come "serious problems" with the clutch slipping among other things if you use car oil (i know the difference between the oils). in a dry clutch you dont have any clutch to screw with so would car oil work?

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post #2 of 11 Old 10-18-2010, 03:53 PM
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technically yes.... but typically motorcycle oil is still used as the demands on the oil in a motorcycle motor are usually much higher than say a car motor.

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post #3 of 11 Old 10-18-2010, 04:03 PM
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Any bike with a dry clutch is going to have it's own special set of requirements as you usually see that at the high performance end of the spectrum.

So you'll have a very specific type of oil that's suggested, if by some coincidence there was a car oil that matched the specs you could use it but it's got to be a very long shot in most cases.

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post #4 of 11 Old 10-18-2010, 04:19 PM
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Quote:
Originally Posted by Danke View Post
Any bike with a dry clutch is going to have it's own special set of requirements as you usually see that at the high performance end of the spectrum.

So you'll have a very specific type of oil that's suggested, if by some coincidence there was a car oil that matched the specs you could use it but it's got to be a very long shot in most cases.
exactly.... like duks, i seem to remember the lack of actual cam bearings, they just use a sleeve / bushing... and the cam floats on a layer of oil... i would let car oil play in those duties.

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post #5 of 11 Old 10-20-2010, 01:53 PM
lusting over something...
 
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Correct me if I'm wrong, but doesn't BMW recommend regular 'ol Castrol for their boxers?

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post #6 of 11 Old 10-20-2010, 03:13 PM
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BMW now says " A good grade of automotive oil. " Change at 6K. I use Motocraft Semi, or GTX in summer as Motocraft doesn't sell 50wt here. The dry clutch will drive you nuts if you don't wear ear plugs. The latest inline fours went to wet like Jap has.

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post #7 of 11 Old 10-20-2010, 05:01 PM
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Dry-clutch - they sound like a shaking a empty paint can with bolts in it.

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post #8 of 11 Old 10-21-2010, 08:40 AM
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post #9 of 11 Old 10-24-2010, 05:04 PM
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Yep, that sounds like my KRS, except it idles a bit lower!

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post #10 of 11 Old 10-24-2010, 07:39 PM
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Quote:
Originally Posted by brokerecord View Post
Yep, that sounds like my KRS, except it idles a bit lower!
Love that sound.
Nice to hear some stingers, even if they are baffled.
See the clear float bowled Lectron carbs ?
Ever neat !

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post #11 of 11 Old 10-24-2010, 10:46 PM
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Quote:
Originally Posted by Redneck View Post
so while i was supposed to be learning something in on of my classes today i was think about wet and dry clutches. while think a question popped into my head and i thought i would ask on here to see if you guys knew. all the bikes i have had or ridden have had wet clutches, so my question is. do you use motorcycle oil in them or would car oil work? i know in a wet clutch that you can case come "serious problems" with the clutch slipping among other things if you use car oil (i know the difference between the oils). in a dry clutch you dont have any clutch to screw with so would car oil work?
In the motorcyles and quads I own that have a dry clutch or seperate transfluid from engine oil I use oil intended for cars since it has moly in it. There is not one oil out there that will stop a catastophic engine failure better than the next when oil is changed in a timeley manner. Just don't use molly with a wet clutch

Common sense. So rare it's a god damn super power.
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