Clutch replacement CBR919RR SC33 - Honda Motorcycles - FireBlades.org
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post #1 of 8 Old 05-05-2019, 3:43 AM Thread Starter
 
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Clutch replacement CBR919RR SC33

Anyone ever replaced the friction plates, steel plates, springs and oil on a cbr919rr and knows exactly till the smallest detail what to do and what not to do or direct me towards someone who really knows how to do this?
read tons of articles, saw quite a few youtube movies, installed a new clutch, checked everything but know the clutch does not disengage, shifting the gears does not work or at least works not smooth.

Who can help me or direct me towards a real expert on this subject?


Much obliged.
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post #2 of 8 Old 05-05-2019, 5:40 AM
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Re: Clutch replacement CBR919RR SC33

Did you have a service manual to reference?

I’ve done plenty of SC28 and SC33 clutches and engine rebuilds. They pretty much just go back together the way they came apart.

If you are experiencing an operational issue (as you reported), then something that you took off is back on wrong.

I would start with where you put the lifter pin. It goes in before the outer pressure plate goes on.

Next I would check that your actuator is properly engaged to the lifter pin.

And make sure you have the proper number of plates installed, as well as the judder spring and seat.



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post #3 of 8 Old 05-05-2019, 3:05 PM Thread Starter
 
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Re: Clutch replacement CBR919RR SC33

yes mister Doohan, I was fully aware of the pulling pin going first in. Also checked the bearing, it was fine. I was also fully aware of the first less broad friction disk and the stutter spring and on the base ring it rests on. Also I used motul semi synthetic 10W40 oil, also the A-ring first plate on top of all the other friction(B-rings and steel rings I placed according to the workshop manual, those steel rings looked very good and fitted in perfectly. I soaked the plates for a few hours in the oil. Also the lever to pull the pulling pin, I turned clockwise to pick up the pulling pin. I felt that it picked it up. But I definitely done something wrong because after reassembly and readjusting the clutch cable accordingly to a partzilla video, the clutch seemed to disengage, but shifting the gears into first, neutral or second was horrible and nearly impossible to do which worked like a charm a few hours before putting in the new cbr919rr sc33A clutch pack(especially picked from a very specialized website.
There is something I missed completely. But when I see those movies on youtube, it seems that I didn't miss a single thing.
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post #4 of 8 Old 05-05-2019, 3:14 PM Thread Starter
 
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Re: Clutch replacement CBR919RR SC33

I also counted the plates that came out(9 in total) and the same amount of plates were in the new clutch pack. The clutch basket looks very good and not worn at all(38000 km on this bike). Nothing strange.
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post #5 of 8 Old 05-05-2019, 6:30 PM
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Re: Clutch replacement CBR919RR SC33

Maybe the outer basket didn’t seat properly in the oil pump drive gear?

Or the damper gear is not in properly engaged with the outer basket gear?

Washer behind the inner basket missing?

Or the actuator, although you think is engaging the lifter pin, in fact is not?




You’ve described very well how you went about things, I don’t have much more to offer except to take it apart and post some pictures of everything you’ve done.

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post #6 of 8 Old 05-06-2019, 4:50 PM Thread Starter
 
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Re: Clutch replacement CBR919RR SC33

I've searched and tried some things and suddenly I found out what was wrong. As an experiment I replaced the old clutch springs and to my surprise suddenly the bike did exactly what it's supposed to do: disengage properly and suddenly also the gear were shifting very smoothly. I took one of the replacement springs and noticed that this spring was much stiffer than the original one!!?? I went back to the place where I bought these springs and to my surprise I read that these were so called high performance springs... High performance my ass... This caused all the problems I experienced. I carried out the whole procedure by the book but overlooked the stiffness of the replacement springs. Now I will sent them back and ask for my money back because this is not ok, selling springs so stiff that the clutch won't operate properly anymore....
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post #7 of 8 Old 05-06-2019, 4:54 PM Thread Starter
 
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Re: Clutch replacement CBR919RR SC33

Anyway, Mister Doohan I would like to say to you: Thank You very much for your great effort to help me. In a sense It stimulated me to look further to eventually find out what was really wrong...

Much obliged

Elzo
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post #8 of 8 Old 05-06-2019, 6:54 PM
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Re: Clutch replacement CBR919RR SC33

Quote:
Originally Posted by Stuppie View Post
I've searched and tried some things and suddenly I found out what was wrong. As an experiment I replaced the old clutch springs and to my surprise suddenly the bike did exactly what it's supposed to do: disengage properly and suddenly also the gear were shifting very smoothly. I took one of the replacement springs and noticed that this spring was much stiffer than the original one!!?? I went back to the place where I bought these springs and to my surprise I read that these were so called high performance springs... High performance my ass... This caused all the problems I experienced. I carried out the whole procedure by the book but overlooked the stiffness of the replacement springs. Now I will sent them back and ask for my money back because this is not ok, selling springs so stiff that the clutch won't operate properly anymore....
Glad you got it sorted out

My 99 900RR Track Build Link:Track Build 900RRX

My Red Rocker 93 Build Link: Café 900RRP
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