Today's Message Index:
----------------------
1. 07:59 AM - Low RPM J3300 (Peter Thomson)
2. 12:30 PM - Re: "MAG" Check (DaveG601XL)
3. 12:52 PM - Re: Re: "MAG" Check (Kayberg@aol.com)
4. 01:07 PM - Re: Re: "MAG" Check (Bob Haas)
Message 1
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A friend recently adjusted the throttle linkage on his Corvus/Jabiru
3300, and now finds he can't get above 2400RPM (previously 2900). He
says the carb opens fully to the stop, and the butterfly is wide open.
The RPM readout is steady, not erratic for any RPM on his Dynon. He
has not been able yet to verify the RPM independently.
Any experiences here ?
thanks
Peter
CZAW CH701SP / 912ULS
Message 2
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As to no RPM drop with carb heat application on the ground, I ditto that. I believe
the low amount of air running over the heat muff helps cause this. You
will notice an RPM reduction if flight with carb heat once you get flying.
Good luck,
--------
David Gallagher
601 XL/Jabiru 3300
First flight 7/24/08
Upgraded 3/19/10
150+ hours and climbing!
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=308098#308098
Message 3
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In a message dated 8/9/2010 3:30:51 P.M. Eastern Daylight Time,
david.m.gallagher@ge.com writes:
--> JabiruEngine-List message posted by: "DaveG601XL"
<david.m.gallagher@ge.com>
As to no RPM drop with carb heat application on the ground, I ditto that.
I believe the low amount of air running over the heat muff helps cause
this. You will notice an RPM reduction if flight with carb heat once you get
flying.
Good luck,
Because the spark plugs are only a couple inches away from each other,
there will be very little mag drop. Some of us have flown WITHOUT carb heat
for several years, so dont expect too much from that either.
In short, it is not a Lycon engine with the plugs on opposite sides of the
cylinders, nor does it have an ice-making venturi carb like the
Marvel-Dribbler or Strombad.
I just check the switches while taxiing out and note if it is revving up on
takeoff. If the one mag is not working, you will find it out quickly
when you hit the switch, but you can have a dead one in the air and not know
it.
IMHO
Doug Koenigsberg
Message 4
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I concur completely after 250 hours on MOGAS Jabiru. Bob Haas.
_____
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of
Kayberg@aol.com
Sent: Monday, August 09, 2010 3:52 PM
Subject: Re: JabiruEngine-List: Re: "MAG" Check
In a message dated 8/9/2010 3:30:51 P.M. Eastern Daylight Time,
david.m.gallagher@ge.com writes:
<david.m.gallagher@ge.com>
As to no RPM drop with carb heat application on the ground, I ditto that. I
believe the low amount of air running over the heat muff helps cause this.
You will notice an RPM reduction if flight with carb heat once you get
flying.
Good luck,
Because the spark plugs are only a couple inches away from each other, there
will be very little mag drop. Some of us have flown WITHOUT carb heat for
several years, so dont expect too much from that either.
In short, it is not a Lycon engine with the plugs on opposite sides of the
cylinders, nor does it have an ice-making venturi carb like the
Marvel-Dribbler or Strombad.
I just check the switches while taxiing out and note if it is revving up on
takeoff. If the one mag is not working, you will find it out quickly when
you hit the switch, but you can have a dead one in the air and not know it.
IMHO
Doug Koenigsberg
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