From: "Andrew Martin andrew@martinag.com.au" <flyrotary@lancaironline.net>
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Date: Thu, 3 Jan 2019 12:19:36 +0800
Message-ID: <CAJxaVD1qxVdjGbqbd-qtC+MC=i58R0FOZa2ZpnAcCQMVgsr=xg@mail.gmail.com>
Subject: Saga continues
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Really think I=E2=80=99m starting to win. But very slowly, which is frustra=
ting.
Seems my initial overheating issues were a combination of many things, not
each that bad in installation but added together!!!! and each masks the
others.

Mocal oil cooler definately works, and judicious application of duct tape
over all the now unnecessary holes in the cowl to improve airflow seems to
have done the job, and can now be done proper again with grp.

But. Seems my oil filter is next on the list to address. I used the stock
mazda renesis oil filter. It actually looks too small to use ( which I now
believe it is)  but I stuck with it because I assumed mazda did the
calculations ( No, the accountants probably took over). Mazda=E2=80=99s fil=
ter
setup only filters oil going to the oil galleries, most oil is not filtered
and just returns to sump via the OCV. Since fitting new oil cooler I now
also have 2 temp sensors, both after the oil cooler but original 1 is also
after the filter. Both are on rear iron.

On latest flight, oil going to OCV max=E2=80=99d at 176f  while filtered oi=
l going
to oil gallery/rotors kept climbing to 216f where I aborted the climb.
Couldve kept going as temp started to behave as I reduced climb, but I
really want to fix these little nuances that restrict performance. Maybe
something unknown is affecting the sensor, otherwise it has to be the
filter.

So, 2 choices, either a better filter that just filters gallery/rotor oil,
or a remote filter that filters all oil.
If using remote filters, what size/part number do you use? Has anyone
measured presure drop/ restriction through filters?

Andrew

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<div><div dir=3D"auto">Really think I=E2=80=99m starting to win. But very s=
lowly, which is frustrating. Seems my initial overheating issues were a com=
bination of many things, not each that bad in installation but added togeth=
er!!!! and each masks the others.</div><div dir=3D"auto"><br></div><div dir=
=3D"auto">Mocal oil cooler definately works, and judicious application of d=
uct tape over all the now unnecessary holes in the cowl to improve airflow =
seems to have done the job, and can now be done proper again with grp.</div=
><div dir=3D"auto"><br></div><div dir=3D"auto">But. Seems my oil filter is =
next on the list to address. I used the stock mazda renesis oil filter. It =
actually looks too small to use ( which I now believe it is) =C2=A0but I st=
uck with it because I assumed mazda did the calculations ( No, the accounta=
nts probably took over). Mazda=E2=80=99s filter setup only filters oil goin=
g to the oil galleries, most oil is not filtered and just returns to sump v=
ia the OCV. Since fitting new oil cooler I now also have 2 temp sensors, bo=
th after the oil cooler but original 1 is also after the filter. Both are o=
n rear iron.</div><div dir=3D"auto"><br></div><div dir=3D"auto">On latest f=
light, oil going to OCV max=E2=80=99d at 176f =C2=A0while filtered oil goin=
g to oil gallery/rotors kept climbing to 216f where I aborted the climb. Co=
uldve kept going as temp started to behave as I reduced climb, but I really=
 want to fix these little nuances that restrict performance. Maybe somethin=
g unknown is affecting the sensor, otherwise it has to be the filter.</div>=
<div dir=3D"auto"><br></div><div dir=3D"auto">So, 2 choices, either a bette=
r filter that just filters gallery/rotor oil, or a remote filter that filte=
rs all oil.=C2=A0</div><div dir=3D"auto">If using remote filters, what size=
/part number do you use? Has anyone measured presure drop/ restriction thro=
ugh filters?</div><div dir=3D"auto"><br></div><div dir=3D"auto">Andrew</div=
><div dir=3D"auto"><br></div><div dir=3D"auto"><br></div><div dir=3D"auto">=
<div><br></div><br></div>
</div>

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