Menu

Members Rides

Me and the bike


in
Members Rides

Welcome, Guest. Please login or register.
Did you miss your activation email?
April 24, 2014, 06:30:51 AM

Login with username, password and session length

 

Author Topic: Sprag Clutch Replacement C5 2010  (Read 3735 times)

singhg5

  • Grand Gearhead
  • *****
  • Posts: 2010
  • Karma: 0
Re: Sprag Clutch Replacement C5 2010
« Reply #30 on: May 15, 2012, 01:00:30 AM »
The Stieber sprag fits, its exactly the same size.  In fact it appears to be identical in every way, so I dont know if it's any stronger than OEM.  My sprag must have been slipping for a lot longer than I noticed because I'm surprised how fast my C5 stars now.  I'll have to see how long it lasts.  

Good to know that it your Stieber sprag fits perfectly and the bike is running well.

Any pictures of the new one ?  Where did you buy it from ?
1970's Jawa /  Yezdi
2006 Honda Nighthawk
2009 Royal Enfield Black G5

Ducati Scotty

  • Grand Gearhead
  • *****
  • Posts: 5624
  • Karma: 0
  • 2010 Teal C5
Re: Sprag Clutch Replacement C5 2010
« Reply #31 on: May 15, 2012, 07:10:18 AM »
How much did the new sprag cost?

Scott

JesterNT

  • Scooter
  • **
  • Posts: 85
  • Karma: 0
  • Maintenance is as much art as it is science.
Re: Sprag Clutch Replacement C5 2010
« Reply #32 on: May 15, 2012, 08:44:29 AM »
I did not take any photos  :(  I thought of that after I had the engine cover back on already.  It looked exactly like the original PN 560011in every way, aside from the fact it wasn't shredded into tiny bits on my workbench.

It cost $71  searched for a local dealer on the US importers site http://www.formsprag.com/distributorframe.htm There were two local dealers in the Oklahoma City area, nether had it in stock.  FLECK BEARING CO quoted me $71 the other company was at $83.  Fleck drop shipped it to me from their supplier for $7 + tax worked out to $82.97.  Now that I think of it, thats probably why the first company quoted me $83?????

Any way I put about 80 miles in the new sparg with no issues yet.
Quando Omni Flunkus Moritati

jartist

  • Grand Gearhead
  • *****
  • Posts: 761
  • Karma: 0
Re: Sprag Clutch Replacement C5 2010
« Reply #33 on: May 22, 2012, 01:21:28 PM »
How much do you suppose the sprag weighed?

JesterNT

  • Scooter
  • **
  • Posts: 85
  • Karma: 0
  • Maintenance is as much art as it is science.
Re: Sprag Clutch Replacement C5 2010
« Reply #34 on: May 22, 2012, 03:27:46 PM »
3 or 4 oz
Quando Omni Flunkus Moritati

iron.head

  • Neophyte
  • *
  • Posts: 33
  • Karma: 0
Re: Sprag Clutch Replacement C5 2010
« Reply #35 on: May 23, 2012, 09:07:33 AM »
Old Classic 500 sprag which failed on many bikes-


New C5 sprag which has not been reported to have failed on any bikes in India yet-



« Last Edit: May 23, 2012, 09:10:30 AM by iron.head »

jartist

  • Grand Gearhead
  • *****
  • Posts: 761
  • Karma: 0
Re: Sprag Clutch Replacement C5 2010
« Reply #36 on: May 23, 2012, 10:57:16 AM »
Wow! That really does look like a robust sprag!

Arizoni

  • Grand Gearhead
  • *****
  • Posts: 3736
  • Karma: 0
  • "But it's a dry heat here in Arizona
Re: Sprag Clutch Replacement C5 2010
« Reply #37 on: May 23, 2012, 06:20:06 PM »
Thanks for the great pictures iron.head
They bring up the question for JesterNT, does your new clutch look like the upper (old) clutch or the lower (new) clutch?
Jim
2011 G5 Deluxe
1999 Miata 10th Anniversary

Ducati Scotty

  • Grand Gearhead
  • *****
  • Posts: 5624
  • Karma: 0
  • 2010 Teal C5
Re: Sprag Clutch Replacement C5 2010
« Reply #38 on: May 23, 2012, 06:35:50 PM »
I like that the new clutch has that spring band going down the middle of the sprags.  That tends to keep them tucked out of harm's way unless there's enough centrifugal force to engage them.  It also has they wavy wire cage to keep them located, more flexible than the solid sheet steel style cage that can shatter when the engine kicks back.

Scott

singhg5

  • Grand Gearhead
  • *****
  • Posts: 2010
  • Karma: 0
Re: Sprag Clutch Replacement C5 2010
« Reply #39 on: May 23, 2012, 06:35:57 PM »
The sprag clutch that Jester got from Stieber looks like the older clutch (upper one), as if they supplied to RE ! -

http://www.stieber.de/pdf/stieber/DC-product-en.pdf
« Last Edit: May 23, 2012, 06:53:22 PM by singhg5 »
1970's Jawa /  Yezdi
2006 Honda Nighthawk
2009 Royal Enfield Black G5

Ducati Scotty

  • Grand Gearhead
  • *****
  • Posts: 5624
  • Karma: 0
  • 2010 Teal C5
Re: Sprag Clutch Replacement C5 2010
« Reply #40 on: May 23, 2012, 06:58:06 PM »
Hmmm, wonder if there are different styles available in the same size/spec?

Scott

singhg5

  • Grand Gearhead
  • *****
  • Posts: 2010
  • Karma: 0
Re: Sprag Clutch Replacement C5 2010
« Reply #41 on: May 23, 2012, 07:33:27 PM »
I like that the new clutch has that spring band going down the middle of the sprags.  That tends to keep them tucked out of harm's way unless there's enough centrifugal force to engage them.  It also has they wavy wire cage to keep them located, more flexible than the solid sheet steel style cage that can shatter when the engine kicks back.
Scott

Scott - Did you write this article on sprag on Ducati website ?

http://www.mad-ducati.com/Technical/StarterSpragClutch/SpragClutch.html
1970's Jawa /  Yezdi
2006 Honda Nighthawk
2009 Royal Enfield Black G5

Ducati Scotty

  • Grand Gearhead
  • *****
  • Posts: 5624
  • Karma: 0
  • 2010 Teal C5
Re: Sprag Clutch Replacement C5 2010
« Reply #42 on: May 23, 2012, 07:49:03 PM »
No, but I read it recently.  Good info.

The Ducati failures (like BMW) seem to be related to the sprag not engaging.  With RE it's the danger of kickback.  This is more prevalent on the pre-UCE bikes but mine failed after charging system problems drained my batteries giving weak starts with several kickbacks.  I don't think that's a coincidence.

Scott
« Last Edit: May 23, 2012, 07:56:06 PM by Ducati Scotty »

Kevin Mahoney

  • Administrator
  • Grand Gearhead
  • *****
  • Posts: 2310
  • Karma: 0
Re: Sprag Clutch Replacement C5 2010
« Reply #43 on: May 23, 2012, 08:35:59 PM »
Yes and no. On Iron-Barrels and AVL's kick back can be a big deal. On the UCE it is more an issue of not engaging. Because of the EFI they rarely if ever kick back. Even if one does the design of the sprag mechanism (meaning not only the sprag but the associated gears) are different.

Ducati Scotty

  • Grand Gearhead
  • *****
  • Posts: 5624
  • Karma: 0
  • 2010 Teal C5
Re: Sprag Clutch Replacement C5 2010
« Reply #44 on: May 23, 2012, 09:57:36 PM »
Thanks for the clarification Kevin.

Scott