What Causes a Sooty Engine?

[eagle19952]

ah yes... i do now recall. those once upon a time were a corrugated mesh. i have seen them on stationary units. they were normally cleaned in solvent and replaced.

i think one piece is as effective as the others. a bug and bird stop if you will.

scratching my old head further.... those screens were always in the filter housing cover...  the cover being a rectangle about 12 x 24...

[Scott & Heather]

That's a lot of screen. I would imagine that's going to help. I wish you'd stop your quest for more power....soon even my 8v92 will be slower than your 6v92. And we already know my 9 is a dog compared to your eagle. You're killing me bro.


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[Seangie]

So the removal of the screen and the new air filter made a huge difference. 

Bus drives better than it ever has.

Scott - Im getting a 36.28 on the quarter mile.  What are you getting?

One issue though is that its still putting out smoke the whole time.  I can still laydown a smoke screen at the start especially here in Santa Fe at 7k feet.  But Ill see smoke coming out even when Im up to speed.

Im thinking a leaky injector.  Especially because I notice more smoke at start up after the bus has been sitting than if I leave it for a few hours.

Thanks guys for all the feedback.

-Sean

[OneLapper]

Scott - Im getting a 36.28 on the quarter mile.  What are you getting?

-Sean

Whoa.  Not to brag, ok I'll brag, I ran a 26.6 quarter mile at 48.91 mph.  And I had to shift.  And no turbo. No slicks, either.  Ha!  Let it begin!!

[Seangie]

Whoa.  Not to brag, ok I'll brag, I ran a 26.6 quarter mile at 48.91 mph.  And I had to shift.  And no turbo. No slicks, either.  Ha!  Let it begin!!

Mark - Yeah and your bus weighs 22k pounds fully loaded

Im in Vegas until next Friday but Ill see if I can get a legit quarter mile in and see where it lands.  Ill use Ulysses Speedo to prove it. Ill start a new post.

-Sean

[OneLapper]

Mark - Yeah and your bus weighs 22k pounds fully loaded

Im in Vegas until next Friday but Ill see if I can get a legit quarter mile in and see where it lands.  Ill use Ulysses Speedo to prove it. Ill start a new post.

-Sean

Make that 22,500! 

I'm using Speedometer xPro.  I'll see if I can post the screen shot

[DoubleEagle]

A new sport is born - bus drag racing! We need a NHRA class designation.

[eagle19952]

i would not condemn the injector until i checked things out closer to sea level. the finest my bus ever ran was in Death Valley... my motorcycle thought it was the bee's knees... it begged me to stay
ps The Al-Can Hwy can consume 2 air cleaner elements in one trip ... one way.

[Seangie]

i would not condemn the injector until i checked things out closer to sea level. the finest my bus ever ran was in Death Valley... my motorcycle thought it was the bee's knees... it begged me to stay
ps The Al-Can Hwy can consume 2 air cleaner elements in one trip ... one way.

Thanks Don.  We are planning that trip possibly next summer.  Ill have to start making a parts list to bring with me.

Ill have to take a look at the smoke level once we get closer to the coast. 

Should injectors be "serviced" every so many miles?  And how many miles would that be?

-Sean

[eagle19952]

Thanks Don.  We are planning that trip possibly next summer.  Ill have to start making a parts list to bring with me.

Ill have to take a look at the smoke level once we get closer to the coast. 

Should injectors be "serviced" every so many miles?  And how many miles would that be?

-Sean

My experience is this. they either work or they don't , or they are stuck.

you can, and should short each injector ( wear your Sunday best)... hold the plunger down with a big heavy duty #4 screw driver you can lean on...... if the motor "changes sound" the injector is good...
new injectors might make a 3% improvement. or lighten your wallet $600.00 in parts.

my 8v71 runs the worst between Albuquerque and Flagstaff taking back roads to SLC to Idaho Falls... maybe 2.5 mpg from Bishop up through Tioga Pass west Yosemite...or east of any ways..they need more air than fuel

[RJ]

One issue though is that its still putting out smoke the whole time.  I can still lay down a smoke screen at the start especially here in Santa Fe at 7k feet. 

Sean -

I think I may have figured out your problem.

But you're going to have to call me to get the answer, 'cause we haven't talked in awhile!   

RJ

[luvrbus]

If the little guy has 9G90 or 9A90 injectors they smoke,give them more air ? you have a boost gauge it would be interesting to know what the boost is 

[Seangie]

If the little guy has 9G90 or 9A90 injectors they smoke,give them more air ? you have a boost gauge it would be interesting to know what the boost is 

Cliff - Ive got 9F80 injectors.  Im sure air is the biggest part of my problem.

Id love to have me some gauges.

Currently I have - Temp, Oil Pressure, Air and fuel gauges.

Speedometers in my phone and I just listen for the RPMs.

I feel like Han Solo flying the Millenium Falcon most of the time.  Tapping on the gauges and sometimes having to jump under the dash to wiggle wires to get them to work.

Id love to have boost and pyrometer.  That would round out the most important ones.

Most days Im just happy when I can get in the drivers seat and it starts up and Im driving down the road not covered in oil and soot.

Its hard to find time to work on the bus as Ive been working alot lately.  Especially when fulltiming.  Its usually just the most important things that get taken care of.

-Sean

[eagle19952]

Most days I'm just happy when I can get in the drivers seat and it starts up and Im driving down the road not covered in oil and soot.

Its hard to find time to work on the bus as I've been working a lot lately.  Especially when full-timing.  Its usually just the most important things that get taken care of.

Aren't you glad it's 2 stroke Eagle.