When I looked for this info it took awhile to find it except for the
Speedbleeder website, so thought this may help anyone looking
for a Speedbleeder or standard bleed screw locally.
Threads are M10-1.00 (fine threads. Other coarser metric threads are 1.25 & 1.5)
Thread depth to tapered seat in either check valve or in end of bleed hose
(valve removed) is not very deep. Shorter bleed screw (thread to
tapered tip) is required to allow enuf thread engagement to avoid stripped threads
Commonly available standard screw with 35mm length is too long, with too long of a tip
Closer to 30mm better for more thread engagement, with area between threads and
tip taper only long enough for bleed hole
BMW standard bleed screw is # 34212330310, around $8.00
Speedbleeder # is 1010S (S for short) under $8.00 for one plus shipping Oct 2010
They are 31.35mm (1.23") long. http://www.speedbleeder.com
Even this one only engages 2 or 3 threads, so probly safer to replace with grub screw
after bleeding
Speedbleeder lists this for all BMW bikes listed in their online catalogue
Most common brand is Dorman (Motormite at AutoZone)
Dorman speedbleeder # 12706 is 33m long, not stocked most AutoZone, Advance, O'Reilly
Tip under threads too long (unthreaded straight part with bleed hole, before tip taper)
Dorman does not list standard bleeder with M10-1.00 threads shorter than 35mm
NAPA standard bleedscrew # UP 22069 is M10-1.00 x 30mm, usually stocked in store
Tip under threads too long (unthreaded straight part with bleed hole, before tip taper)
NAPA standard bleedscrew # UP 9497 is M10-1.00 x 28.7mm, not stocked in store,
have to order online. Price not listed online. http://www.napaonline.com
This is the only one I found with a short enough area between threads and tip that
should screw into either the clutch bleed valve or the hose (valve removed)
NAPA speedbleeder is # BK 3355416 (Edelbrock) is M10-1.0 x 35mm, tip too long
Clutch bleed screw or Speedbleeder size info EDITED
Moderator: Moderators
Re: Clutch bleed screw or Speedbleeder size info EDITED
FWIW, I'd get the stainless steel version as opposed to the brass. I had the brass, used it once, then the next time, it would not thread properly and put bubbles in the system no matter what I tried. I could see no visible sign of thread damage, but ordered the new stainless version nonetheless, and it worked fine the first time.
