DFI 2 stroke Question ....

Matt Lang wrote:
 > Folks,
 >
 > I was wondering where the oil goes that the DFI motor pumps to the
 > crankbearings. Does it accumulate in the crankcase and eventually
 > gets dragged in the cylinders and burned? Is this the oil the DFI
 > motor burns as it has no oil in the fuel itself? I couldnt find info
 > about this in my optimax shopmanual ..
 >
 > Karen maybe you know this?
 >
 > Matt

  Yes; just as you know who says:-) it's supposed to be "burnt". It is
injected in such small amounts at idle that it doesn't really go
anywhere at idle, till you rev up then any excess gets "transferred" &
probably some does actually get burnt.

  However, because it's undiluted raw oil, a good part of it goes
straight out the exhaust port still as raw oil.

  So when people comment about the absence of "smoke" from the DFIs
that's true, because the oil isn't diluted with fuel.

  You've probably noticed it's a bit oily around it's nether regions:-)

K<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: DFI 2 stroke Question .... 

In article <31l2g6F3cqjabU1 RemoveThis @individual.net>,
"K. Smith" <ksmith1 RemoveThis @msn.com> wrote:

 > Matt Lang wrote:
  > > Folks,
  > >
  > > I was wondering where the oil goes that the DFI motor pumps to the
  > > crankbearings. Does it accumulate in the crankcase and eventually
  > > gets dragged in the cylinders and burned? Is this the oil the DFI
  > > motor burns as it has no oil in the fuel itself? I couldnt find info
  > > about this in my optimax shopmanual ..
  > >
  > > Karen maybe you know this?
  > >
  > > Matt
 >
  > Yes; just as you know who says:-) it's supposed to be "burnt". It is
 > injected in such small amounts at idle that it doesn't really go
 > anywhere at idle, till you rev up then any excess gets "transferred" &
 > probably some does actually get burnt.
 >
  > However, because it's undiluted raw oil, a good part of it goes
 > straight out the exhaust port still as raw oil.
 >
  > So when people comment about the absence of "smoke" from the DFIs
 > that's true, because the oil isn't diluted with fuel.
 >
  > You've probably noticed it's a bit oily around it's nether regions:-)

A couple of years ago we were staying overnight at a small marina in
northern Georgian Bay, Lake Huron--an area of pristine fresh water. The
boat in the next slip had an Optimax engine that was running a bit
rough. He departed the slip about 5 p.m.; we stayed overnight. When he
started his engine there was quite a bit of oil discharged into the
water. When I awoke the next morning there was an oily scum line on my
hull that I had to scrub off. Based on this experience there is no doubt
that a two-stroke DFI can discharge unburned oil in its exhaust.<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: DFI 2 stroke Question .... 

K. Smith wrote:
 > Matt Lang wrote:
  > > Folks,
  > >
  > > I was wondering where the oil goes that the DFI motor pumps to the
  > > crankbearings. Does it accumulate in the crankcase and eventually
  > > gets dragged in the cylinders and burned? Is this the oil the DFI
  > > motor burns as it has no oil in the fuel itself? I couldnt find
info
  > > about this in my optimax shopmanual ..
  > >
  > > Karen maybe you know this?
  > >
  > > Matt
 >
  > Yes; just as you know who says:-) it's supposed to be "burnt". It is

 > injected in such small amounts at idle that it doesn't really go
 > anywhere at idle, till you rev up then any excess gets "transferred"
&
 > probably some does actually get burnt.
 >
  > However, because it's undiluted raw oil, a good part of it goes
 > straight out the exhaust port still as raw oil.
 >
  > So when people comment about the absence of "smoke" from the DFIs
 > that's true, because the oil isn't diluted with fuel.
 >
  > You've probably noticed it's a bit oily around it's nether
regions:-)
 >
 > K<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: DFI 2 stroke Question ....