From: "Christian christamarmc@gmail.com" <flyrotary@lancaironline.net>
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Date: Sun, 5 Nov 2017 08:11:02 +1000
Subject: Re: [FlyRotary] Re: overheating issue
Message-Id: <D13AE8ED-F5B3-492D-BB7A-BBF67F18CD8F@gmail.com>
References: <list-10294251@logan.com>
In-Reply-To: <list-10294251@logan.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>

Hi Steve
No worries, unfortunately u don't need much, but it will only seem to surfac=
e the more pressure you run (higher rpm and heat etc)
You shouldn't have any bubbles at all once warm, I can leave my cap off my e=
ngine whilst warm and running and I see nothing now.
All learnt from experience, but in saying that I wouldn't be keen to pull do=
wn your engine either until it really was a problem. ( running way to hot et=
c)
Hope this helps.

Cheers

Sent from my iPad

On 4 Nov 2017, at 7:02 pm, Stephen Izett stephen.izett@gmail.com <flyrotary@=
lancaironline.net> wrote:

>> Hi Christian
>> Not very much in the way of bubbles. Small amount of very small 0.5mm bub=
bles.
>> Nothing compared to what Ive seen from head gasket trouble in pistons.
>> Thanks
>> Steve
>=20
>=20
>> On 4 Nov 2017, at 4:37 pm, Christian christamarmc@gmail.com <flyrotary@la=
ncaironline.net> wrote:
>>=20
>> Hi Steve
>> Unfortunately yes, if leaking gases into the water it will get hotter,=20=

>> When it's being run can you see bubbles arising in the overflow tank, may=
 only present itself when it warms up.
>> Neil unfortunately just had this issue with a newly rebuilt motor.
>> I've also had this issue, I then swapped to tracy,s seals.
>>=20
>> Hope this helps.
>> Cheers
>> Christian
>>=20
>> Sent from my iPad
>>=20
>>> On 4 Nov 2017, at 5:45 pm, Stephen Izett stephen.izett@gmail.com <flyrot=
ary@lancaironline.net> wrote:
>>>=20
>>> Hi guys
>>>=20
>>> Our 4 port renesis in the Glasair has begun to get hotter.
>>> We have been taxi testing and noticed temps rising higher than previousl=
y seen.
>>> Unfortunately also noticed a tiny weep of water and the tiniest bubble a=
ppear between the rotor housing and rear plate yesterday.
>>> So looks like o ring failure maybe beginning.
>>>=20
>>> Do rotaries overheat as a result of an o ring failure?
>>> Ive pressure tested it and it will hold ~10psi for half an hour.
>>> What are the important issues re overheating in rotaries?
>>>=20
>>> Thanks
>>>=20
>>> Steve Izett
>>> Glasair Super II RG Renesis 4 port RD1C
>>>=20
>>>=20
>>>=20
>>> --
>>> Homepage:  http://www.flyrotary.com/
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st.html
>>=20
>> --
>> Homepage:  http://www.flyrotary.com/
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t.html
>=20
>=20
> --
> Homepage:  http://www.flyrotary.com/
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