Opened up airbox to remove flies and have a light mist of fuel surrounding the butterfly intakes. 1200 miles on bike now. Any reason for this spray, anyone else have this issue when getting ready to pull your flies?
Cause....Cure?
Ninja
Created on: 05/26/12 06:56 AM
Replies: 7
ninjawarrior1244
Location:
Joined: 03/27/11
Posts: 262
Fuel mist in airbox intake area
05/26/12 6:56 AM
Opened up airbox to remove flies and have a light mist of fuel surrounding the butterfly intakes. 1200 miles on bike now. Any reason for this spray, anyone else have this issue when getting ready to pull your flies?
Cause....Cure?
Ninja
Rook
Joined: 03/28/09
Posts: 20608
RE: Fuel mist in airbox intake area
05/28/12 8:13 AM
Any reason for this spray,
anyone else have this issue when getting ready to pull your flies?
Are you sure this is fuel you have? Seems as though that would evaporate pretty quickly and be gone before you got the tank and covers off.
If you are sure this fuel and not an oil mist, how much fuel are we talking?
ninjawarrior1244
Location:
Joined: 03/27/11
Posts: 262
RE: Fuel mist in airbox intake area
05/28/12 8:50 AM
No it is fuel, not oil....used a white rag to wipe and test for oil...not present.
Now that the flies are out, hoping less pressure in the intake area will reduce or eliminate any more fuel mist/droplets around the intake area.
Seems to me with 1200 miles the bike the rings have seated now, there should be NO oil shooting past the rings into the intake plenum areas.
Any more ideas or thoughts?
Hub
Joined: 02/05/09
Posts: 13724
Hub
Joined: 02/05/09
Posts: 13724
hagrid
Location: pittsburgh
Joined: 02/16/12
Posts: 2210
RE: Fuel mist in airbox intake area
05/28/12 8:18 PM
Amazing. In the zoomed out view you can see wisps of atomized fuel escape the engine entirely. At WOT to boot.
Excellent find Hub.
Oh... almost forgot. Ford may have solved this. Their Eco-Boost engines use direct injection. If i understand correctly
the fuel injector sprays into the combustion chamber directly... as is done in Diesel engines. I suppose this exposes the injector
nozzle to combustion temperatures. Longevity?
I also read a research paper that explained the successful employment of lasers as a substitute for spark plugs. The advantages?
The lasers caused ignition of the air/fuel mixture much more quickly. The difference is messured in micro-seconds... but at
18,000 rpm they add up.
* Last updated by: hagrid on 5/28/2012 @ 8:33 PM *
Rook
Joined: 03/28/09
Posts: 20608
RE: Fuel mist in airbox intake area
05/29/12 7:03 AM
Yeah, that is a great vid Hub. That is almost like what I was envisioning ....not that severe but fuel mist has got to waft all over being sprayed in such a small bore. I'm sure that is why they changed the spray angle on the 08-11, to get as much fuel as possible into the new combustion chamber.
bigwilliezx
Location: Keller, Texas
Joined: 04/29/11
Posts: 571
RE: Fuel mist in airbox intake area
05/30/12 3:56 AM
Cool vid!
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