Sorry, I forgot to add that we have purged the system as per the latest
rotax bulletin and also checked the regulator.
Correct me if I am wrong but I have seen "burping" the system. I have
always assumed that this was rotating the prop in the correct direction with
the cap of the oil tank off until you get the burping sound. Is this
correct?
The only thing that I can think of is that it is some kind of restriction in
the "circuit" which ceases to be a restriction once the oil is less viscous
(warmed up).
Will
_____
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Jerry Rehn
Sent: Monday, April 23, 2007 11:27
Subject: RE: Europa-List: Oil pressure
You could test the oil system per SI-912-005. This would help determine
problems of suctions and pressures. Also you might try purging the system
per SI-04-1997. This is relatively easy to do and would insure there isn't
air in your system. Third check the oil relief ball and spring for wear and
contamination another easy check.
Jerry
_____
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of William Daniell
Sent: Monday, April 23, 2007 8:18 AM
Subject: Europa-List: Oil pressure
I know that I have asked this before but I wonder if everyone could rack
their brains.
My motor starts fine the pressure goes up to 5.5 bar for about 2-4 minutes.
It then falls with not loss of rpm to 1.5 bar for about 2-5 minutes.
It then goes back up to 5.5 and stays there without a problem.
The oil pressure sender is working fine and is the gauge - I have tested
them both. The engine runs smooth and produces sufficient power. I run
avgas because the premium mogas here is 95 or lower octane.
On a hot day the pressure drop is minimal on start up. So I am thinking
that maybe this has something to do with viscosity. Perhaps even what Ira
mentioned - lead accumulation in the oil tank.
Any ideas as to the cause?
How much damage will this do? Clearly this is not ideal but it could be one
of those problems where the "solution" ends up being always out of reach.
Will
Colombia
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