Today's Message Index:
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1. 03:51 PM - Purging 912ULS oil system with oil thermostat installed (lucien)
2. 08:44 PM - Re: Purging 912ULS oil system with oil thermostat installed (Paul Kuntz)
3. 10:12 PM - Re: Purging 912ULS oil system with oil thermostat installed (Roger Lee)
Message 1
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| Subject: | Purging 912ULS oil system with oil thermostat installed |
Hi all,
I'm going to be replacing my oil lines soon but I've never done a full purge and
reprime of a 912 oil system before. So have a couple questions about it:
- I have an oil thermostat installed like this one:
http://www.rotaxparts.net/scripts/prodView.asp?idproduct=1302
Is there anything in particular I have to pay attention to to make sure the oil
cooler gets properly filled up with this inline? The documentation for it says
it's partially open even when cold so I assume it fills up by itself. But not
sure. Anyone know?
- the manual says to pull the valve covers off and physically check for play in
the lifters afterwards (i.e. for the presence of air in them). Is that necessarily
still after just breaking the oil circuit open to change the lines? Don't
know if that's only for new engines or ?
Thanks,
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=334002#334002
Message 2
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| Subject: | Re: Purging 912ULS oil system with oil thermostat installed |
LS,
I discuss this on my Pipistrel project web site. Here's a link to the Firewall
Forward page <http://www.pipistrelbuilders.com/firewall_forward.html>.
Scroll down the page to the entries for
Dec 5, 2010, Dec 18th, 2010 and Jan 2nd, 2011. I found that the partially
open position of the thermostat when cold wasn't enough to get all the lines
full of oil, and you definitely want to get all the air out of them.
I would check the lifters as well, although they may remain full of oil.
The problem is that you will be turning the prop through a number of
revolutions before the system is full of oil again, so the oil may be
squeezed out of the lifters, at least to some degree. Follow the procedure
described in the Rotax 912 Installation Manual, section 31.11 (available in
the Documentation
area<http://www.rotax-aircraft-engines.com/desktopdefault.aspx/tabid-49>of
the Rotax web site). It will be easy to see of the lifters need to be
re-primed. There is also a video of the priming procedure available
on the Rotax
Owners site <http://joomla.rotax-owner.com/>. If you don't already have a
subscription to this site, I recommend it for an excellent information
resource (in addition to this forum).
Regards,
Paul Kuntz
Pipistrel Sinus 912 kit serial 196 <http://www.pipistrelbuilders.com/>
On Tue, Mar 15, 2011 at 3:48 PM, lucien <lstavenhagen@hotmail.com> wrote:
> lstavenhagen@hotmail.com>
>
> Hi all,
>
> I'm going to be replacing my oil lines soon but I've never done a full
> purge and reprime of a 912 oil system before. So have a couple questions
> about it:
>
> - I have an oil thermostat installed like this one:
> http://www.rotaxparts.net/scripts/prodView.asp?idproduct=1302
> Is there anything in particular I have to pay attention to to make sure the
> oil cooler gets properly filled up with this inline? The documentation for
> it says it's partially open even when cold so I assume it fills up by
> itself. But not sure. Anyone know?
>
> - the manual says to pull the valve covers off and physically check for
> play in the lifters afterwards (i.e. for the presence of air in them). Is
> that necessarily still after just breaking the oil circuit open to change
> the lines? Don't know if that's only for new engines or ?
>
> Thanks,
> LS
>
> --------
> LS
> Titan II SS
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=334002#334002
>
>
Message 3
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| Subject: | Re: Purging 912ULS oil system with oil thermostat installed |
You can use a heat gun on the thermostat to open it up for a good purge and as
suggested look at the video on the ROAN website. It is very good in showing you
what to do.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=334050#334050
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