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                           JabiruEngine-List Digest Archive
                                      ---
                     Total Messages Posted Wed 08/24/11: 3
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Today's Message Index:
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     1. 02:25 PM - Pressure Fluctuation on 3300 Jabiru engine  (James, Clive R)
     2. 06:04 PM - Re: Pressure Fluctuation on 3300 Jabiru engine  (zodiac601)
     3. 10:36 PM - Re: Re: Pressure Fluctuation on 3300 Jabiru engine  (James, Clive R)
 
 
 
________________________________  Message 1  _____________________________________


Time: 02:25:27 PM PST US
Subject: JabiruEngine-List: Pressure Fluctuation on 3300 Jabiru engine
From: "James, Clive R" <clive.james@uk.bp.com>

You may recall I had some oil pressure issues and a concern about
pressure fluctuations on my 3300 engine.

Vic (Jab owners) has been good enough to post two videos on U tube which
show the pressure jumping on my 3300 and not jumping on my 2200. Bear in
mind I'm hand cranking the prop and so the pressure is dependent on how
fast I'm going.
The Gauge is a 60 psi (4 bar) one. The camera phone is right on top of
the engine so the sound is a bit sharp.

http://www.jabiru.flyer.co.uk/oilpump.htm

Appreciate any comments. I have written to Jab in Aus asking for help
and feedback.

Regards, Clive

________________________________  Message 2  _____________________________________


Time: 06:04:30 PM PST US
Subject: JabiruEngine-List: Re: Pressure Fluctuation on 3300 Jabiru engine
From: "zodiac601" <timtreat@sbcglobal.net>


huh? exactly what is your concern. The gauges appear to be acting the same to me.
Besides, you are hand cranking the prop and the speed of the oil pump gear
is fluctuating as you spin the prop. 

How does it act running?


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=350504#350504


________________________________  Message 3  _____________________________________


Time: 10:36:27 PM PST US
Subject: RE: JabiruEngine-List: Re: Pressure Fluctuation on 3300 Jabiru engine
From: "James, Clive R" <clive.james@uk.bp.com>


When it's running the gauge needle goes into a blur.
Look carefully at the 3300 video, it swings up and down according to how
fast I'm turning the prop but drops quickly every time the pressure
builds up enough to pop the relief valve.

The recent cooler busts is my concern, that and low oil pressure in
flight, several times which seem to have been quite random.

Basically performance of the oil system that doesn't make sense and
doesn't make me comfortable. Engine has done 35 hrs in the air.

Regards, Clive

-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of
zodiac601
Sent: 25 August 2011 02:01
Subject: JabiruEngine-List: Re: Pressure Fluctuation on 3300 Jabiru
engine

--> <timtreat@sbcglobal.net>

huh? exactly what is your concern. The gauges appear to be acting the
same to me. Besides, you are hand cranking the prop and the speed of the
oil pump gear is fluctuating as you spin the prop. 

How does it act running?


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=350504#350504


 

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