Hi Svein,
Neville has a way of doing this, give him an email at:
_neveyre@btinternet.com_ (mailto:neveyre@btinternet.com) and he will be
delighted to let you
have the information.
regards
Trev
G-LINN
In a message dated 17/12/2011 13:39:49 GMT Standard Time,
air.guerner@orange.fr writes:
--> Europa-List message posted by: "Remi Guerner" <air.guerner@orange.fr>
Hi Svein,
I agree that it is nice to install a device to prevent any oil vapor
condensation from the breather to stain the bottom of your fuselage. However,
in
my opinion, the installation shown on your picture looks unsafe as there
is very little section for the vapor to escape. The result can be a too high
pressure build up in the oil tank and also in the crankcase with possible
bad consequences:
- what makes the oil returning from the crankcase to the tank is the
blow-by which creates a pressure build-up inside the crankcase, pushing the oil
out to the tank. If the oil tank is not appropriately vented to the
atmosphere or if the vent is restricted significantly, then the differential
pressure between the crankcase and the tank will be reduced, possibly leading
to
a reduced flow of oil back to the tank. In the worst case, you may end up
with a full crankcase, an empty tank... and then a dead engine!
- the increased pressure in the tank and the crankshaft may also cause the
seals to blow out, leading to loosing all your oil in flight.
I would suggest you increase the diameter of the venting hole of you
bottle to about 8 mm which is the diameter of the venting hose recommanded by
Rotax.
Regards
Remi Guerner
F-PGKL
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