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  #1 (permalink)  
Old 07-17-2017, 07:58 PM
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Bdl clutch hub / trans help

Ok, last year I had an issue with my bdl clutch hub nut. Somehow it came loose on my transmission shaft and stripped the nut (luckily nothing happened to the shaft). Anyway, must have been an ongoing problem because bdl redesigned it. Now it's called CDAS-100A. So I got that and installed it.... it's been in a while, but today I noticed on my way to work that when I would pull my clutch lever it would have resistance then break and snap against my grip (nothing actually broke, just the tension would break). So I pulled my clutch and discovered the o-rings had disentigrated and basically melted all over my clutch rod. (I'll add a picture of the part I'm talking about so you can understand what I'm talking about) is there any chance that got into the transmission? I pulled the dipstick, and the oil is clear as can be..... any suggestions??
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  #2 (permalink)  
Old 07-17-2017, 08:07 PM
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Here's the pic of the part.
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Bdl clutch hub / trans help-screenshot_20170717-200629.jpg  
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  #3 (permalink)  
Old 07-18-2017, 03:50 AM
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When i install the clutch, i REMOVE THE ADJUSTMENT BOLT and test the smoothness of push rod and ramp operation by pressing with a screw driver through the pressure plate hole, against the push rod: the hand lever should return to resting position SMOOTHLY. I squeeze the lever and feel the push rod coming out against my screw driver SMOOTHLY, back and forth a few times . This way i see no binding or resistance. SEE THAT THE TRAVEL IS ADEQUATE!
After that i install the adjustment bolt to touch down, back off 1/4 turn and lock, then adjust the cable.

Typically there's an o ring in the pressure plate that rides against the adjustment bolt. Never seen the o rings on the bolt, but i guess it doesn't meter. But in any scenario the o rings shouldn't melt.
There might be some excessive friction heat?
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VITALY.
SORRY FOR THE UPPER CASE. I AIN'T YELLING. I JUST MAKE TOO MANY TYPOS IN THE LOWER.

113"s&s, Walz softail 2000/2012 prostreet
96"s&s, Daytec dyna/ softail hybrid, 2010 chopper
127"Ultima, Chassis Design rigid 2013 bobber
120"Ultima, Kraft Tech rigid 2014 bobber
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Old 07-18-2017, 05:31 AM
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Quote:
Originally Posted by STEINBVG View Post
When i install the clutch, i REMOVE THE ADJUSTMENT BOLT and test the smoothness of push rod and ramp operation by pressing with a screw driver through the pressure plate hole, against the push rod: the hand lever should return to resting position SMOOTHLY. I squeeze the lever and feel the push rod coming out against my screw driver SMOOTHLY, back and forth a few times . This way i see no binding or resistance. SEE THAT THE TRAVEL IS ADEQUATE!
After that i install the adjustment bolt to touch down, back off 1/4 turn and lock, then adjust the cable.

Typically there's an o ring in the pressure plate that rides against the adjustment bolt. Never seen the o rings on the bolt, but i guess it doesn't meter. But in any scenario the o rings shouldn't melt.
There might be some excessive friction heat?
I was thinking maybe they just used crappy o-rings. Do you think the o-ring material could enter the gear area if the trans from the push rod area, or is that separately enclosed?
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Old 07-18-2017, 07:29 AM
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Quote:
Originally Posted by blackiron99 View Post
i was thinking maybe they just used crappy o-rings. Do you think the o-ring material could enter the gear area if the trans from the push rod area, or is that separately enclosed?
don't think so- here's a long tunnel inside of the main shaft , no way to get out.
Come to think , there's no o ring on the pressure plate[my mistake], it's on the nut that holds the clutch basket. I don't know if you even need those tiny o rings. Oil doesn't come out of that area much
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VITALY.
SORRY FOR THE UPPER CASE. I AIN'T YELLING. I JUST MAKE TOO MANY TYPOS IN THE LOWER.

113"s&s, Walz softail 2000/2012 prostreet
96"s&s, Daytec dyna/ softail hybrid, 2010 chopper
127"Ultima, Chassis Design rigid 2013 bobber
120"Ultima, Kraft Tech rigid 2014 bobber
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Old 07-18-2017, 07:33 AM
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Quote:
Originally Posted by STEINBVG View Post
don't think so- here's a long tunnel inside of the main shaft , no way to get out.
Come to think , there's no o ring on the pressure plate[my mistake], it's on the nut that holds the clutch basket. I don't know if you even need those tiny o rings. Oil doesn't come out of that area much
Are you saying this is yours?
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  #7 (permalink)  
Old 07-18-2017, 08:34 AM
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Quote:
Originally Posted by Blackiron99 View Post
Are you saying this is yours?
Yep, my Primo and Ultima - all have nuts like this. The adjustment stud goes right through
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VITALY.
SORRY FOR THE UPPER CASE. I AIN'T YELLING. I JUST MAKE TOO MANY TYPOS IN THE LOWER.

113"s&s, Walz softail 2000/2012 prostreet
96"s&s, Daytec dyna/ softail hybrid, 2010 chopper
127"Ultima, Chassis Design rigid 2013 bobber
120"Ultima, Kraft Tech rigid 2014 bobber
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  #8 (permalink)  
Old 07-18-2017, 08:38 AM
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Yeah, the one I have is the "new" version. I guess that nut has a bad problem backing off, which then make disengaging the clutch near impossible.... it's actually a great idea, however maybe viton o-rings to start with would have been a good idea.....
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  #9 (permalink)  
Old 07-18-2017, 08:46 AM
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Quote:
Originally Posted by Blackiron99 View Post
Yeah, the one I have is the "new" version. I guess that nut has a bad problem backing off, which then make disengaging the clutch near impossible.... it's actually a great idea, however maybe viton o-rings to start with would have been a good idea.....
I never had that nut backing out- just use red locktite and impact wrench.
But you can try new viton rings see how it plays out. keep us posted.
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VITALY.
SORRY FOR THE UPPER CASE. I AIN'T YELLING. I JUST MAKE TOO MANY TYPOS IN THE LOWER.

113"s&s, Walz softail 2000/2012 prostreet
96"s&s, Daytec dyna/ softail hybrid, 2010 chopper
127"Ultima, Chassis Design rigid 2013 bobber
120"Ultima, Kraft Tech rigid 2014 bobber
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  #10 (permalink)  
Old 07-23-2017, 11:59 AM
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Quote:
Originally Posted by Blackiron99 View Post
Yeah, the one I have is the "new" version. I guess that nut has a bad problem backing off, which then make disengaging the clutch near impossible.... it's actually a great idea, however maybe viton o-rings to start with would have been a good idea.....
I've run that nut for 20 years without problem. I always pre-lube the thing with oil when I install a new one. The seal will only last so long given its a dry setup. If you can find the seal alone, its literally pennies.
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Old 07-23-2017, 01:21 PM
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I'm ok running the new design, just need the o-rings to hold up. I switched them up for viton instead of nitrite, since viton is higher temp and more chemical resistant. We'll see how they hold up..
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Old 07-23-2017, 01:51 PM
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good luck! might switch next time if it works!
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