Loading ...
Sorry, an error occurred while loading the content.
 

Re: [mlathemods] Re: Headstock bearing replacement

Expand Messages
  • Marty N
    Cams are rarely balanced. Lobe itself is a large imbalance. No one really tries as spring pressure makes it near impossible. Of course a five pounder may be a
    Message 1 of 28 , Aug 5, 2006
      Cams are rarely balanced. Lobe itself is a large imbalance. No one really tries as spring pressure makes it near impossible. Of course a five pounder may be a bit sticky but within reason should have next to no effect. Newer Iron.

      Marty

      ----- Original Message -----
      From: imbrewster2
      To: mlathemods@yahoogroups.com
      Sent: Saturday, August 05, 2006 9:55 AM
      Subject: [mlathemods] Re: Headstock bearing replacement


      I've been looking at the cam shaft for a trigger location. I've
      been concerned about the shaft getting out of balance by attaching a
      magnet to it. That is why this "NEW" Hall effect device caught my
      attention. If I can keep the magnet small, I can mount the magnet
      on the cam chain sprocket. That would give me some flexability in
      the trigger timing.
      The bike is a 2000 Kawasaki KLX 300 dirt bike.

      Brewster

      --- In mlathemods@yahoogroups.com, "Marty N" <martyn@...> wrote:
      >
      > Brewster:
      >
      > Trigger from the camshaft, it runs at half speed or use the
      distributor drive, same effect. Either are interesting machining
      projects.
      >
      > Curious, new or old iron?
      >
      > Marty
      >
      > ----- Original Message -----
      > From: imbrewster2
      > To: mlathemods@yahoogroups.com
      > Sent: Saturday, August 05, 2006 1:35 AM
      > Subject: [mlathemods] Re: Headstock bearing replacement
      >
      >
      > The throttle body assembly was my first real project on the
      lathe,
      > so I guess that the subject is partially on topic. Like
      yourself,
      > the project hasn't been a priority. I have no intentions of
      making
      > a replacement for the carb, just wanted to see if I could make
      > something that would run the engine at low speed.
      > The throttle body was designed to the same mounting dimensions
      as
      > the carb it will replace. The circuit will contain an absolute
      > pressure sensor between the throttle plate and intake to measure
      > ambient pressure before starting (altitude compensation) and
      then
      > manifold pressure. The electronics contains a PIC to do the
      > monitoring and pulse width adjustments for the injector. The
      > ignition trigger pulse is every revolution of the crank shaft so
      I
      > want something to trigger every other rotation when the intake
      > valves are about to open. It's a single cylinder engine.
      > I used a milling attachment on the lathe for some of the work.
      > That inspired me to buy a mini-mill.
      >
      > Brewster
      >
      > --- In mlathemods@yahoogroups.com, "kendall" <merc2dogs@> wrote:
      > >
      > > --- In mlathemods@yahoogroups.com, "imbrewster2" <ibrew@>
      wrote:
      > > >
      > > > Rabid
      > > > Can you point me in the direction of more information on
      these
      > NEW
      > > > Hall effect divices? I've been looking around for something
      to
      > use
      > > > as a trigger for a Fuel Injector system I've been putting
      > together
      > > > for my motorcycle.
      > > >
      > > > Thanks
      > > > Brewster
      > >
      > > May be off topic, but care to expand on your FI system? I've
      been
      > > playing with a fuel injection design for a while off and on,
      more
      > off
      > > then on, but always curious about other ideas.
      > > my design is for a mechanicaly controlled electrical system,
      > simple
      > > but more to get my feet wet then anything at present.
      > >
      > > one of the reasons I ended up getting the new lathe was to try
      out
      > a
      > > couple ideas on mechanical control.
      > >
      > > Ken.
      > >
      >
      >
      >
      >
      >
      > [Non-text portions of this message have been removed]
      >





      [Non-text portions of this message have been removed]
    Your message has been successfully submitted and would be delivered to recipients shortly.