Today's Message Index:
----------------------
1. 04:01 AM - Re: Oil in quarts (Thom Riddle)
2. 04:09 PM - Re: Re : oil level (Gilles Thesee)
3. 07:49 PM - 912 Rough running on either left or right mag -- smooth on both (Jon Croke)
4. 11:44 PM - Re: Re : oil level ()
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Oil in quarts |
--> RotaxEngines-List message posted by: Thom Riddle <jtriddle@adelphia.net>
Ron P.
You are not off topic in my opinion and you are correct. This SB and
the SB-912-036 (for 912) specifically warn of incorrect venting if
draining the oil from the oil cooler or allowing oil to drain from the
suction side of the oil pump, or turning the prop backwards a full
turn, thus drawing air backwards into the oil pump. This is why it is
customary not to drain the oil cooler at every oil and filter change.
It can be done but correct venting instructions afterwards must be
followed.
Correct oil change procedure is in SB-912-010 and SB-914-011.
Please note that draining the crankcase via the magnetic drain plug is
not included in the warning and "do not do" list in this bulletin.
Thom in Buffalo
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Re : oil level |
--> RotaxEngines-List message posted by: Gilles Thesee <Gilles.Thesee@ac-grenoble.fr>
Thom Riddle a crit :
> --> RotaxEngines-List message posted by: Thom Riddle
> <jtriddle@adelphia.net>
>
> Gilles,
>
> You are correct that the TOTAL oil supply depends on the particular
> installation due to length of oil lines and oil cooler capacity.
> However, the oil cooler is normally not drained during oil/filter change.
>
> The magnetic drain plug is very important to inspect at every oil
> change. This is the first line of defense for large chunks of ferrous
> metal. You can't check and clean it without removing it.
>
> Please post a link to or copy and paste the specific Rotax SB that
> states the crank case drain plug is not to be removed during oil
> change. That is counter to everything I've every studied in power
> plant mechanics or ever encountered in the field.
>
Thom,
I'm afraid your post got through unnoticed until today.
I agree with your statement about the importance of checking metal
particle at each oil change. This is why Rotax calls for opening and
inspecting the oil filter at each oil change.
I'd say there are two plugs in the crankcase : the lower banjo is part
of the return circuit to the oil tank, and as such should not be removed
during ordinary oil change, according to SI-912-010 R1.
The maintenance manual specifies that for changing oil, the oil TANK
plug must be used.
There is also a magnetic plug between cylinder #2 and reduction gear
case. The maintenance manual calls for inspection every 200 h and 300 h
(apart from the 25 h inspection).
Regards,
Gilles Thesee
Grenoble, France
http://contrails.free.fr
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | 912 Rough running on either left or right mag -- smooth |
on both
--> RotaxEngines-List message posted by: "Jon Croke" <jon@joncroke.com>
Would anyone have an idea on the following problem:
I get about a 400 rpm drop and a definite roughness (like a cylinder
missing) when performing a mag check... identical reaction for left AND
right... but when using both mags the engine seems to run just fine and run
smooth... I still get full power and have been flying... but this behavior
conerns me... didnt use to be this way... Rotax manual calls for a max 300
rpm drop..
Using a 80hp 912
Thanks for any suggestions...
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Re : oil level |
--> RotaxEngines-List message posted by: <joeing701@internet.is>
Hello list members.
All this talk about oil level has confused me some.
When you check the oil on a hot engine that has normal operating temps, do you
just check the dipstip without doing the turn by hand method to wait for the
slurp sound in the oil container?
If I check the oil level on hot engine, the level is low, but if I do two or
three turns for the slurping sound in the container, the level is within the
range on the stick.
Which is correct?
Thank you,
Johann G.
Iceland.
> > Gilles,
> >
> > You are correct that the TOTAL oil supply depends on the particular
> > installation due to length of oil lines and oil cooler capacity.
> > However, the oil cooler is normally not drained during oil/filter change.
> >
> > The magnetic drain plug is very important to inspect at every oil
> > change. This is the first line of defense for large chunks of ferrous
> > metal. You can't check and clean it without removing it.
> >
> > Please post a link to or copy and paste the specific Rotax SB that
> > states the crank case drain plug is not to be removed during oil
> > change. That is counter to everything I've every studied in power
> > plant mechanics or ever encountered in the field.
> >
> Thom,
>
> I'm afraid your post got through unnoticed until today.
> I agree with your statement about the importance of checking metal particle
> at each oil change. This is why Rotax calls for opening and inspecting the
> oil filter at each oil change.
>
> I'd say there are two plugs in the crankcase : the lower banjo is part of
> the return circuit to the oil tank, and as such should not be removed during
> ordinary oil change, according to SI-912-010 R1.
> The maintenance manual specifies that for changing oil, the oil TANK plug
> must be used.
>
> There is also a magnetic plug between cylinder #2 and reduction gear case.
> The maintenance manual calls for inspection every 200 h and 300 h (apart from
> the 25 h inspection).
>
> Regards,
> Gilles Thesee
> Grenoble, France
> http://contrails.free.fr
>
>
>
>
>
> http://www.matronics.com/Navigator?RotaxEngines-List
> http://wiki.matronics.com
>
>
>
>
>
>
>
>
>
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|