Today's Message Index:
----------------------
1. 04:02 AM - Re: Re: Gas spill from Bing carb (Lynn Matteson)
2. 05:52 AM - Re: Re: Gas spill from Bing carb (Naftali Horowitz)
3. 07:27 AM - Re: Re: Gas spill from Bing carb (Charles Gallagher)
4. 09:40 AM - Re: Re: Gas spill from Bing carb (Lynn Matteson)
Message 1
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| Subject: | Re: Gas spill from Bing carb |
Hi Naftali-
When I decided to go with gravity fuel feed, I had removed the
mechanical fuel pump, and had made a 5/16" thick block-off plate to
cover the hole where the fuel pump had been. Then later on, I got to
thinking that maybe the crankcase needed to breathe a little easier.
My thinking was that if there were more than just the one breather
tube, maybe so much oil wouldn't be pumped out of the engine, so I
drilled a hole in the block-off plate and installed a fitting,
attached a hose to it, and ran the hose over to my catch
can....pretty simple, really. An added bonus is that when I put oil
in the engine, there is no more glup, glup, gurgle, as the oil is
slow to enter the engine because the escaping air is no longer having
to compete with the oil coming down the dipstick tube.
At the collection can/puke jar/whatever you want to call it, I just
added another inlet hole and a metal tube, and attached the new hose.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062
Sensenich 62"x 55.5 Wood (winter) until the Prince prop arrives
Electroair direct-fire ignition system
Rotec TBI-40 injection
Status: flying...1080+ hrs (since 3-27-2006)
On Jan 30, 2011, at 1:47 AM, Naftali Horowitz wrote:
> Hi Lynn,
> Could you please ellaborate more on the secondary crankcase vent
> you installed in lieu of the mechanical pump?
> Sounds interesting.
> Thanks,
> Naftali.
Message 2
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| Subject: | Re: Gas spill from Bing carb |
Thanks Lynn
> From: lynnmatt@jps.net
> Subject: Re: JabiruEngine-List: Re: Gas spill from Bing carb
> Date: Sun=2C 30 Jan 2011 06:59:23 -0500
> To: jabiruengine-list@matronics.com
>
>
>
> Hi Naftali-
>
> When I decided to go with gravity fuel feed=2C I had removed the
> mechanical fuel pump=2C and had made a 5/16" thick block-off plate to
> cover the hole where the fuel pump had been. Then later on=2C I got to
> thinking that maybe the crankcase needed to breathe a little easier.
> My thinking was that if there were more than just the one breather
> tube=2C maybe so much oil wouldn't be pumped out of the engine=2C so I
> drilled a hole in the block-off plate and installed a fitting=2C
> attached a hose to it=2C and ran the hose over to my catch
> can....pretty simple=2C really. An added bonus is that when I put oil
> in the engine=2C there is no more glup=2C glup=2C gurgle=2C as the oil is
> slow to enter the engine because the escaping air is no longer having
> to compete with the oil coming down the dipstick tube.
>
> At the collection can/puke jar/whatever you want to call it=2C I just
> added another inlet hole and a metal tube=2C and attached the new hose.
>
> Lynn Matteson
> Kitfox IV Speedster=2C taildragger
> Jabiru 2200=2C #2062
> Sensenich 62"x 55.5 Wood (winter) until the Prince prop arrives
> Electroair direct-fire ignition system
> Rotec TBI-40 injection
> Status: flying...1080+ hrs (since 3-27-2006)
>
>
>
> On Jan 30=2C 2011=2C at 1:47 AM=2C Naftali Horowitz wrote:
>
> > Hi Lynn=2C
> > Could you please ellaborate more on the secondary crankcase vent
> > you installed in lieu of the mechanical pump?
> > Sounds interesting.
> > Thanks=2C
> > Naftali.
>
===========
===========
===========
===========
>
>
>
Message 3
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| Subject: | Re: Gas spill from Bing carb |
Good morning Lynn, has the electroair direct-fire ignition system and Rotec
TBI-40 injection resulted in balanced temperatures and better fuel efficie
ncy .Do you think it was money well spent. Thanks for sharing your thoughts
. Rgs.,CRG
--- On Sun, 1/30/11, Naftali Horowitz <naftalih@hotmail.com> wrote:
From: Naftali Horowitz <naftalih@hotmail.com>
Subject: RE: JabiruEngine-List: Re: Gas spill from Bing carb
=0A=0A=0AThanks Lynn
-
=0A> From: lynnmatt@jps.net
> Subject: Re: JabiruEngine-List: Re: Gas spill from Bing carb
> Date: Sun, 30 Jan 2011 06:59:23 -0500
> To: jabiruengine-list@matronics.com
>
>
>
> Hi Naftali-
>
> When I decided to go with gravity fuel feed, I had removed the
> mechanical fuel pump, and had made a 5/16" thick block-off plate to
> cover the hole where the fuel pump had been. Then later on, I got to
> thinking that maybe the crankcase needed to breathe a little easier.
> My thinking was that if there were more than just the one breather
> tube, maybe so much oil wouldn't be pumped out of the engine, so I
> drilled a hole in the block-off plate and installed a fitting,
> attached a hose to it, and ran the hose over to my catch
> can....pretty simple, really. An added bonus is that when I put oil
> in the engine, there is no more glup, glup, gurgle, as the oil is
> slow to enter the engine because the escaping air is no longer having
> to compete with the oil coming down the dipstick tube.
>
> At the collection can/puke jar/whatever you want to call it, I just
> added another inlet hole and a metal tube, and attached the new hose.
>
> Lynn Matteson
> Kitfox IV Speedster, taildragger
> Jabiru 2200, #2062
> Sensenich 62"x 55.5 Wood (winter) until the Prince prop arrives
> Electroair direct-fire ignition system
> Rotec TBI-40 injection
> Status: flying...1080+ hrs (since 3-27-2006)
>
>
>
> On Jan 30, 2011, at 1:47 AM, Naftali Horowitz wrote:
>
> > Hi Lynn,
> > Could you please ellaborate more on the secondary crankcase vent
> > you installed in lieu of the mechanical pump?
> > Sounds interesting.
> > Thanks,
> > Naftali.
>
>
>
=0A=0A
=0A=0A=0A
Message 4
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| Subject: | Re: Gas spill from Bing carb |
I did not seen any better fuel distribution since I went to the TBI,
based on EGT's...they still wander all over the place as far as
balanced goes. I'm convinced...and so is Jabiru apparently, or they
wouldn't be testing with one, or at least they bought one and ran
some tests...that the imbalance of EGT's is a manifold problem. I
built an updraft intake manifold and plenum to try to alleviate the
problem after first using the TBI on the stock Jabiru manifold, and
it didn't help much, if at all.
Fuel efficiency is better, I think, and I'm able to fly lean of peak
EGT, which results in better economy, but it'd take YEARS to recover
the money spent on it. Also, with any device such as this, you spend
a lot of time checking the gauges to see where the EGT has gone. This
has become less of a chore since I went ot a vernier mixture
control....no more creeping cable control. In hindsight, if you want
a carefree flight, get the Bing working *correctly*, and leave the
fussing behind. I bought the TBI for the ability to select the
mixture that I wanted in-flight, and that's what I got. I guess it
comes down to do you want to experiment, and keep your eye on the
gauges, or do you want to fly. If you're a tinkerer go for the TBI,
but if not stay with the Bing...if it works.
The Electroair has been great. No more rotor and cap hassles, and no
more leaky distributor shafts. Spark plug life is long, and gaps can
be increased which results in better burning of less-than-perfect air/
fuel ratios. It starts at a reduced timing advance which means the
battery can be getting weak and starts are still insured. There is
also the longer spark duration, which means a more complete fuel
burn, as I understand it.
I fly the plane during the Michigan winters, which means having to
start the engine at below-freezing temperatures, and although I pre-
heat the engine, it has never failed to start...today at 18 above
zero F., and as low as 6 above zero F.
As an aside, I just ordered some aluminum tubing that I'll use to try
another intake manifold configuration...this time I'll bell-mouth the
tubes inside the plenum. If this doesn't help, then I'll give it a
rest, and just fly the thing as is....until I get another notion. : )
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062
Sensenich 62"x 55.5 Wood (winter) until the Prince prop arrives
Electroair direct-fire ignition system
Rotec TBI-40 injection
Status: flying...1081 hrs (since 3-27-2006)
On Jan 30, 2011, at 10:23 AM, Charles Gallagher wrote:
> Good morning Lynn, has the electroair direct-fire ignition system
> and Rotec TBI-40 injection resulted in balanced temperatures and
> better fuel efficiency .Do you think it was money well spent.
> Thanks for sharing your thoughts. Rgs.,CRG
>
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