Today's Message Index:
----------------------
1. 02:04 AM - Re: Engine miss in flight (simmor2)
2. 04:06 AM - Auto fuel (BobbyPaulk@comcast.net)
3. 11:30 AM - Re: Engine miss in flight (Tim Yoder)
4. 01:54 PM - Re: Auto fuel ()
5. 06:19 PM - Re: Engine miss in flight (Paul Bryant)
6. 06:19 PM - Re: Engine miss in flight (Paul Bryant)
Message 1
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| Subject: | Re: Engine miss in flight |
I have always used avgas
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=471012#471012
Message 2
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American Auto fuel is NOT high enough Octane for the Jabiru.
I was using 92 Oct. Non Ethanol Marine fuel with an Octane booster.
The booster would break down unless it was used quickly.
The engine requires 95 Oct RON which is about 3 points higher than 95 Oct.MON (
American Rating ).
Using Auto fuel in a high compression engine will cause detonation.
Also most Bing carburetors lean the mixture between 2500 and 2800 RPM.
Watch your EGT and CHT. I am running a 260 main jet and 290 plus .002 Needle jet
and I still can not operate in those RPM ranges.
Bobby ( age 79 )
Zodiac 601 XL "B"
Jabiru 3300 S/N 1141
Sensenich 64" x 51" Prop
Bing Carb 260 Main & 290 Plus .002 Needle Jet
Status - Flying 280 hrs.
Do Not Archive
Message 3
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| Subject: | Engine miss in flight |
Did you think to check each mag?
-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of simmor2
Sent: Friday, July 14, 2017 4:08 PM
Subject: JabiruEngine-List: Engine miss in flight
--> <4rcsimmons@comcast.net>
Hello,
Yesterday evening, I flew about 40 minutes. As I was turning on bad and
bringing rpm down to around 1700 rpm, the engine began missing. It constant
but little short shutters if you will. Got to the ground with no problems
but now I am concerned.
I recently finished my condition inspection. And have had several hours of
flights since.
Any of you folks experience anything similar?
I have created a hit list, however, any advice from practical experience
would be appreciated.
Regards,
Rich
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=471006#471006
Message 4
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The American system is AKI (antiknock index) and is listed on the pumps
. The Australian system is RON (research octane number ) . According
to the published conversion charts RON x .95 = AKI .
So the requirement of 95 RON from Jabiru equates to 90 AKI . Ethanol
free high test has a 93 AKI rating which is well above the requirement
for the engine . Regular 87 AKI and mid grade 89 AKI are NOT suitable
for the engine .
Leo Dringoli
Corby Starlet
Jabiru 2200
From: BobbyPaulk@comcast.net
Sent: Saturday, July 15, 2017 7:06 AM
Subject: JabiruEngine-List: Auto fuel
American Auto fuel is NOT high enough Octane for the Jabiru.
I was using 92 Oct. Non Ethanol Marine fuel with an Octane booster.
The booster would break down unless it was used quickly.
The engine requires 95 Oct RON which is about 3 points higher than 95
Oct.MON ( American Rating ).
Using Auto fuel in a high compression engine will cause detonation.
Also most Bing carburetors lean the mixture between 2500 and 2800 RPM.
Watch your EGT and CHT. I am running a 260 main jet and 290 plus .002
Needle jet and I still can not operate in those RPM ranges.
Bobby ( age 79 )
Zodiac 601 XL "B"
Jabiru 3300 S/N 1141
Sensenich 64" x 51" Prop
Bing Carb 260 Main & 290 Plus .002 Needle Jet
Status - Flying 280 hrs.
Do Not Archive
Message 5
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| Subject: | Re: Engine miss in flight |
Carb Ice perhaps?
-----Original Message-----
From: Tim Yoder <ftyoder@yoderbuilt.com>
Sent: Sat, Jul 15, 2017 2:30 pm
Subject: RE: JabiruEngine-List: Engine miss in flight
Did you think to check each mag?
-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of simmor2
Sent: Friday, July 14, 2017 4:08 PM
Subject: JabiruEngine-List: Engine miss in flight
--> <4rcsimmons@comcast.net>
Hello,
Yesterday evening, I flew about 40 minutes. As I was turning on bad and
bringing rpm down to around 1700 rpm, the engine began missing. It constant
but little short shutters if you will. Got to the ground with no problems
but now I am concerned.
I recently finished my condition inspection. And have had several hours of
flights since.
Any of you folks experience anything similar?
I have created a hit list, however, any advice from practical experience
would be appreciated.
Regards,
Rich
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=471006#471006
Message 6
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| Subject: | Re: Engine miss in flight |
Carb Ice perhaps?
-----Original Message-----
From: Tim Yoder <ftyoder@yoderbuilt.com>
Sent: Sat, Jul 15, 2017 2:30 pm
Subject: RE: JabiruEngine-List: Engine miss in flight
Did you think to check each mag?
-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of simmor2
Sent: Friday, July 14, 2017 4:08 PM
Subject: JabiruEngine-List: Engine miss in flight
--> <4rcsimmons@comcast.net>
Hello,
Yesterday evening, I flew about 40 minutes. As I was turning on bad and
bringing rpm down to around 1700 rpm, the engine began missing. It constant
but little short shutters if you will. Got to the ground with no problems
but now I am concerned.
I recently finished my condition inspection. And have had several hours of
flights since.
Any of you folks experience anything similar?
I have created a hit list, however, any advice from practical experience
would be appreciated.
Regards,
Rich
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=471006#471006
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