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  #1 (permalink)  
Old 05-20-2015, 11:16 PM
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Possible tranny issue?

I have a 120 Ultima engine running a BDL open primary with a hydraulic clutch. Recently I have noticed that when stopped with clutch fully engaged my bike has been "grabbing or wanting to creep forward . I have replaced all my clutch plates and adjusted the clutch screw. Is there anything I need to do with my hydraulic hand/cable that may be causing the problem as it still exists. Or is there a way of checking my transmission to see if the problem lies there?

Thanks for any help
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  #2 (permalink)  
Old 05-21-2015, 04:16 AM
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Quote:
Originally Posted by Boone View Post
I have a 120 Ultima engine running a BDL open primary with a hydraulic clutch. Recently I have noticed that when stopped with clutch fully engaged my bike has been "grabbing or wanting to creep forward . I have replaced all my clutch plates and adjusted the clutch screw. Is there anything I need to do with my hydraulic hand/cable that may be causing the problem as it still exists. Or is there a way of checking my transmission to see if the problem lies there?

Thanks for any help
Does it do all the time? I guess new clutch plates rule out dirt and warp...

Try to achieve maximum travel of the pushrod by adjusting clutch to almost zero lash, backing out only 1/4 turn.

Also I wonder if the hydraulic mechanism is working appropriately and is not spongy ...like brakes. Bleed it well!!!
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Old 05-21-2015, 08:05 AM
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I found on my hydraulic clutch, that the adjustment screw is really touching almost all the time to keep the bike from creeping at red lights etc. I may back it off MAYBE 1/16 of a turn, but no more. the 1/4 turn thing for me didn't work at all.
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Old 05-21-2015, 09:27 AM
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Quote:
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i found on my hydraulic clutch, that the adjustment screw is really touching almost all the time to keep the bike from creeping at red lights etc. I may back it off maybe 1/16 of a turn, but no more. The 1/4 turn thing for me didn't work at all.
interesting, never had a hydraulic clutch. The whole point of backing out the adjustment bolt was to protect the round ends of push rod and ensure that the clutch is in completely relaxed [engaged]position at all times..
I'm pretty sure any slack from zero lash is good, as long is doesn't drag...
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SORRY FOR THE UPPER CASE. CAN'T SEE SHIT.
113"s&s, Walz softail 2000/2012 prostreet
96"s&s, Daytec dyna/ softail hybrid, 1998/2010 chopper
127"Ultima, Chassis Design rigid 2013 bobber
120"Ultima, Kraft Tech FL 2014/2019 bobber
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Old 05-21-2015, 10:09 AM
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from my past experience...my friends hydraulic clutch or from any type of hydraulic operated system has always been air in the line.. sometimes very difficult to get out...he had to purchase
a hand held vacuum pump to get it out..I tried the old pump and release method and that did not work...
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  #6 (permalink)  
Old 05-21-2015, 11:09 AM
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Quote:
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from my past experience...my friends hydraulic clutch or from any type of hydraulic operated system has always been air in the line.. Sometimes very difficult to get out...he had to purchase
a hand held vacuum pump to get it out..i tried the old pump and release method and that did not work...
i never saw need for hydraulic clutch...cable is simple and reliable. And i don't need much effort, 3 of my bikes have auto pressure plates...they grab better than any kind or number of springs could[ given the same clutch sandwich].

And auto clutch is great when you have a manual shifter., the ride is so much fun.. I have tried suicide clutch on my last built...call my a pussy, but , no thanks...
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VITALY.
SORRY FOR THE UPPER CASE. CAN'T SEE SHIT.
113"s&s, Walz softail 2000/2012 prostreet
96"s&s, Daytec dyna/ softail hybrid, 1998/2010 chopper
127"Ultima, Chassis Design rigid 2013 bobber
120"Ultima, Kraft Tech FL 2014/2019 bobber
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  #7 (permalink)  
Old 05-21-2015, 12:16 PM
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Going to bleed the hydraulic fluid today to see if that's it. More of a frustrating thing now.
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Old 05-21-2015, 08:30 PM
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BDL will tell you that on many hydraulics you will need to back it out a min of a 1/2 turn....Mine is just right at about 3/4... Turn it in until you see the pressure plate just start to move and back it out a half turn... Pull the lever and you should be able to spin the pressure plate... It will lock up as you start releasing the lever....Give it a try.
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Old 05-22-2015, 11:47 PM
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That was it! Thanks. It's working fine now!
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  #10 (permalink)  
Old 07-03-2015, 05:44 PM
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Quote:
Originally Posted by Boone View Post
I have a 120 Ultima engine running a BDL open primary with a hydraulic clutch. Recently I have noticed that when stopped with clutch fully engaged my bike has been "grabbing or wanting to creep forward . I have replaced all my clutch plates and adjusted the clutch screw. Is there anything I need to do with my hydraulic hand/cable that may be causing the problem as it still exists. Or is there a way of checking my transmission to see if the problem lies there?

Thanks for any help
Sounds like the clutch drum is wandering in & out. All old Harleys do that Harley Marty
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