From: "Christamarmc" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Re: start
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Date: Sun, 25 May 2014 08:07:19 +1000
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Hi Steve
Christian here on the east coast of aus, i have a copy of a cd that goes thr=
ough the engine rebuild process if you need one, just drop me an email and I=
'll send you a copy and can help with what I've done if you like

Cheers
Christian

Sent from my iPad

> On 25 May 2014, at 1:39 am, "Charlie England" <flyrotary@lancaironline.net=
> wrote:
>=20
>> On 5/23/2014 6:57 PM, steve Izett wrote:
>> Hi guys
>>=20
>> We are just finishing our Glasair SIIRG with a Renesis 4 port.
>> Started her up after finishing main wiring and she burst into life. (with=
out prop at the moment).
>> ~70psi oil pressure oil and water temps building. Ran it for 5 mins or so=
 before shutdown not wanting temps above 200.
>> We worked out that if we lifted the tail up we could get some more air ou=
t and water in.
>> I have some questions/concerns:
>>=20
>> 1. Gurgling sound emanating from oil filler/breather with white substance=
 on the oil dip stick. Concerned water may be getting into sump. What are th=
e symptoms of o-ring failure? So much to learn re rotaries.
>>=20
>> 2. If we do need to tear it down, any great sources of how to go about it=
. Remembering years ago seeing Bruce T had a video?
>>=20
>> 3. We are working on an expansion tank design and wondered if someone cou=
ld share the important elements of a good cooling system design. Looking at p=
hotos of other aircraft I=E2=80=99ve seen lines to expansion tanks from A. R=
ear iron port. B. Radiator tank top. etc. A. Is height of tank significant? B=
. Volume required? C. How much air should be left in the tank? D. Cap style?=
.
>>=20
>> So much appreciate having this list.
>>=20
>>=20
>> Steve Izett
>> Perth Western Australia
> I failed to answer several questions.
> 1. 'Chocolate milk' looking oil does sound like coolant contamination (my e=
xperience was with a piston engine 40 yrs ago). You can add a schrader valve=
 (tire valve) and pressure gauge to the coolant system, pressurize with air o=
n top of your coolant up to your cap limit, and wait a day to see if it's lo=
sing pressure. (It will fluctuate slightly with ambient temperature, if ther=
e's much air in the system.)
>=20
> 2. There was a video, but I don't have one.
>=20
> 3B: Most automotive swirl pots I've looked at are between 1 & 2 quarts (so=
rry for the archaic measure; I live in the USA...). I've got several from di=
fferent salvage yard cars (all with ~20 lb caps) that I collected to see if a=
ny would work on my installation. Upside is, most are translucent, making co=
olant level checks a lot more convenient. :-)
>=20
> 3D: See previous emails. A lot of guys use ~20 pound caps. This is higher t=
han older automotive systems (most were ~14 lbs), but fairly common on newer=
 cars with pressurized swirl pot style systems. Higher cap pressures are sup=
posed to help prevent unneeded venting of coolant at altitude, where ambient=
 pressure is lower & will effectively lower the pressure point (cap pressure=
 is the difference between system and ambient).
>=20
> Charlie
>=20
> --
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